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RE: Pacific, Heroes and Leaders mod Expansion - 9/27/2020 7:16:07 PM   
asl3d


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US M18 Hellcat 76mm

During the first part of the Second World War, the Americans wished to develop a light and fast hunter of tank. The first attempt was to install the gun of 76.2 mm on the chassis of M3 Stuart. At the end of 1941, one installed the anti-tank gun of 37 mm in an open turret on the chassis of the M9 light tank airborne Locust. This conversion was baptized T42. However, the gun of 37 mm was already obsolete at that time and one replaced it by the British gun of 6-pdr (57 mm) in spring 1942. This new model was baptized T49 and two prototypes were constructed by General Motor Buick Division. The tests showed however that the vehicle was too slow. The suspension was of Christie type, with volute springs. However the Tank Destroyer Command gave its preference to the gun of 75 mm and a new prototype armed with this gun was construct. It was identical to T49 but the gun of 57 mm had been replaced by the gun of 75 mm in an open turret. This model, baptized T67 was tested in November 1942 in Aberdeen. The gun gave satisfaction but it was not the case of the engine.
During, the development, the gun of 75 mm was replaced by the 76 mm M1 which had a more important thrust force. After the tests one decided to remove the T67 project and a new design, baptized T70 was developed, armed with the gun of 76 mm M1. General Motors received the order of 6 prototypes in January 1943 and the first was ready during spring 1943, the others being finalized for July. The double Buick engine of T67 had been replaced by a Continental R-975-C1 and the final transmission was done in front and either to the back as on T67.




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RE: Pacific, Heroes and Leaders mod Expansion - 9/28/2020 6:28:02 PM   
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US M18 Super Hellcat 90mm

T70 was a very successful vehicle, in spite of some initial problems. The front shock absorber had to be doubled to compensate the weight of the tank. The lifespan of the tracks was hardly famous and works were carried out to improve it. After improvement of the design, the production began immediately at General Motors Buick Division in July 1943. In March 1944, T70 was renamed 76 mm Gun Motor Carriage M18. The 18 was also called Hellcat. T70 was finalized for July 1943. It started directly production on the assembly lines of Buick Division of General Motors. From July 1943 to October 1944, 2507 specimens were produced under the designation of 76 mm Gin Motor Carriage M18 (name obtained in March 1944).
In spring 1945, the gun of 90 mm M3 was very largely spread and it was decided to mount this gun on M18 Hellcat. As it was already assembled on M36 Jackson, one decided simply to mount the turret of M36 on M18. The circular had to be increased of 5 cm and modifications were brought to the arrangements of ammunition. To effectively compensate the effects of the shootings of the gun of 90 mm on the chassis, a muzzle brake was obligatory. However with each shooting the tank moved back of 60 cm! To compensate the increase in weight one thought to use broader tracks. However end of the war in August 1945 put a term at the development of this very promising design.




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RE: Pacific, Heroes and Leaders mod Expansion - 9/29/2020 6:14:34 PM   
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US M36 Jackson 90mm

While M10 started production, the Germans put on the battle fields new more powerful and better protected tanks. Although excel, the gun of 76 mm had become insufficient to pierce at distance the shielding of the new German panzers (Tigers, Panthers). T53 and the T53E1 are the first attempts to mount the anti-aircraft gun of 90 mm on an entirely tracked mounting. An order of 500 specimens was carried out then finally cancelled because of the low mobility, instability, the insufficient protection of the crew, the too high silhouette and the too light weight to take the recoil, of the prototype. The project was cancelled in spring 1944 to the profit of M36.
One thus thought to rearm M10 and M10A1 models with the anti-aircraft gun of 90 mm because the chassis gave whole satisfaction. A version of this gun was installed in the turret of M10 during the summer 1942 to check the feasibility of this conversion. However the gun of 90 mm weighed approximately 150 kg more than that of 76 mm what caused some problems of balance on the level of the turret of M10. The best solution was to design a very new turret what was made. Work on the new turret began at Chevrolet in spring 1943 and Ford assembled two mild steel models based on M10 and the M10A1. The new turret was inspired by the T23 turret which equipped Shermans(76) and was equipped with a broad bulge (strongly armoured) to the back which compensated the weight of the gun. This bulge was also used to store ammunition of 90 mm. This new turret was overall better armoured than that of M10. In November 1943, the design was finalized and Fisher Tank Arsenal accepted a contract for 500 specimens based on the T71E1 (hull of the the M10A1 gasoline). Fisher didn't have the sufficient number of chassis to convert the M10A1 (hardly more than 200), it was thus necessary to build the new ones. The Massey Harris company was called in reinforcement to supplement the initial order. In June 1944, the T71E1 was officially renamed M36.




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RE: Pacific, Heroes and Leaders mod Expansion - 9/30/2020 7:20:23 PM   
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US M36B1 Jackson 90mm

The T71E1 was standardized in June 1944 under the designation of 90 mm Gun Motor Carriage M36. But it had already been its appearance on the assembly lines of Fisher Tank Division (Chrysler) in April 1944. A total of 300 specimens were produced in this factory starting from this date, until July of the same year. Three other manufacturers were put at the task: first of all Massey-Harris Co which produced of them 500 between June and December 1944, then Alco (American Locomotive Co.) who produced of them 413 between October and December 1944. From this moment the production of M36 known a stop but will take again course for two months in May-June 1945 at Montreal Loco Works where 85 specimens were produced. On the whole 1298 specimens of M36 were manufactured in the one year space.
M36 was equipped with the gasoline engine of the M10A1. The design of the hull was identical to that of the standard M10A1. At the interior the brackets of reinforcement of the superstructure were moved forwards providing more space to the ammunition of 90 mm. The engine compartment was equipped with an auxiliary generator and a modified electric installation. The firewall was also modified, like trap doors of the floor. The only notable differences come from the turret. The provision of the crew was different also. Indeed the gunner sat to the right of the gun, the commander sat behind him and the loader sat to the left of the gun.
The turret of M36 was equipped with a partial well of turret.The M36B1 with the original hull of the M4A3(75)W was produced to 187 specimens only by Fisher Tank Division between October and December 1944. The M36B2 was as for it produced to 672 specimens by Alco and 52 specimens by Montreal Locomotive in April-May 1945. These two models were only conversions of M36.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/1/2020 6:28:14 PM   
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US M36B2 Jackson 90mm

Because of the weight of the gun the turret of M36 was equipped with an assisted system of traverse, in addition to the manual system. The general aspect of the turret was round and nonangular as that of M10. It recalls in fact, a little, the T23 turret which will equip Shermans(76). It was equipped with a broad strongly armoured bulge, whose weight counterbalanced that of the gun and who accomodated ammunition of 90 mm arranged in tubes.
M36 was armed with the gun of 90 mm M3 on M1 mounting (with broad round shield) with an elevation of 20° and a depression of 10°. On the whole M36 accomodated 47 shells of 90 mm, mainly piercing shells, but also some high-explosive shells and smoke-producing shells. This weapon could with shells with high velocity (HVAP - High Velocity Armor Piercing) pierce still 154 mm of shielding to 2000 mm thanks to an initial speed of 1021 m/s! It was clear that no German tank was to the shelter of a such weapon. To supplement its armament, M36 was equipped with a .50cal machine-gun (12.7mm) for its anti-aircraft and local defence mounted on a pedestal on the back bulge.
The shielding is made up of laminated steel plates welded between them. The shielding of the hull and the superstructure are nearly identical to that of M10 and respect the same principles. But that of the turret is higher as the figures attest it below.
Because of the lack of hull of M10A1 available, one also used the hulls of M10 with diesel engine (M36B2) and hulls of the M4A3(75)W with gasoline engine (M36B1). This last model was very different from both others with a design of hull of Sherman.
The M36B2 was equipped with the hull of M10 with diesel engine. Its engine was a GM 6046 of 12 cylinders (mounted by couple on line), with liquid cooling, of 13.9 L of discplacement, developing 375 to 410 hp to 2100 rpm. It is distinguished from M36 thanks to its grid of ventilation of small size on the rear deck of the superstructure. It was equipped with a muzzle brake to double deflector and with an armoured superstructure covering the turret to protect the crew.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/2/2020 6:33:47 PM   
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M8 Scott 75 mm Howitzer

In 1941-42, US Army tank battalions were divided between light or medium battalions. The first were equipped with M3/M5 light tanks and the second of M3/M4 medium tanks. In order to provide a mobile artillery support to the light battalions, one decided to produce a light motorized howitzer. Moreover, there was a request for a self-propelled 75 mm howitzer for the infantry cannon companies.
One firstly tried to adapt the chassis of M3 light tank but conversion was a failure and it was finally the chassis of M5 light tank which was selected. The howitzer of 75 mm was assembled in a broad turret open to the top and also equipped with a circular for anti-aircraft machine-gun of 12.7 mm. The T47 prototype (or T17E1) was finalized and produced by Cadillac Motor Car Division of General Motors Corp. T47 was accepted for the production in 1942 as M8 75 mm Howitzer Motor Carriage.
M8 was manufactured by only Cadillac Motor Car Division of General Motors Corp.
A total of 1778 specimens were produced between September 1942 and January 1944.
M8 had a crew of 4 men: the driver sitting in the front-left corner of the hull, its assistant sitting in the front-right corner and the commander-loader and the gunner sitting in the turret. The first two men had sat behind the final command device and automatic transmission (Hydramatic) with 5 speeds (4-1). The steering was with controlled differential and was done via the steering levers while slowing down on one of the two tracks. The hull of M8 was nearly identical to that of M5. The glacis was inclined, the upper part was in the shape of reversed trapezoid and was welded whereas that lower was bolted. However contrary to M5 the glacis of M8 did not comprise machine-gun of hull. The access was done via two trap doors assembled on hinge either on the roof of the superstructure but on the glacis itself to even provide space necessary to the broad circular (1.38 m) of the turret.
M8 was equipped with a broad turret open to the top. Traverse was manual. The armament consisted of an howitzer of 75 mm M2 or %3 assembled on M7 mounting and of a machine-gun of 12.7 mm assembled on a circular in the back-right corner of the turret. The howitzer will full traverse shooting capacity, had a depression of 20° and an elevation of 40°. M8 embarked 46 shells of 75 mm. A fastener of trailer was assembled on the back plate of the hull to tractor draw a trailer of ammunition. The commander who also had the function of loader had sat in the right part of the turret whereas the gunner had sat in the left part.
M8 as M5 was equipped with the engine Twin (double) Cadillac Series 42 of 2 X 8 cylinders (V) developing on the whole 296 hp to 3200 rpm. M8 reached the maximum speed of 58 km/h and had an autonomy of 161 km. M8 like M5, because of dimensions of the Cadillac group-engine had an imposing rear deck. The elevated rear deck was easily recognizable. The access to the engine was done is via the trap doors of the upper rear plate of lower hull or for a more significant maintenance by the plates of the rear deeck which were then dismounted.
M8 was only used by US Army in Western Europe, Italy and in the Pacific. Whereas M8 was brought into service in 1944. The light and medium tank battalions were removed and remelted in only one composite battalion composed of a light tank company and three medium tank companies. These units will use Shermans(105) to play the role of M8 HMC and this one disappeared quickly from strengths of the Tank Battalions.
M8 HMC was however still used as assault gun in the cavalry reconnaissance squadrons. One counted 8 M8 HMC in the squadrons attached to armoured divisions, and six in each non-divisional squadron. During the campaign of Western Europe, each corps had a group of reconnaissance of cavalry, being composed of several squadrons. These units of cavalry played a vital role. They have the uncomfortable job to probe the ground before the arrival of the tanks, which meant that its elements were the first to undergo the fire of the enemy at the time of ambushes or ennemy offensives. The squadrons of cavalry were also employed to ensure the safety on the flanks during the mobile operations. These squadrons were equipped with M8s and M5A1s. When the Germans arrived, these machines moved back and called Shermans to the rescue because they were not conceived to face to Panthers and Tigers.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/3/2020 6:10:37 PM   
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M7 Priest 105 mm Howitzer early

Following the experiment of the installation of howitzer of 105 mm on half-tracked vehicles, US Army decided to realize an entirely tracked version. The project of the motorized howitzer of 105 mm began in 1941. The standard field howitzer US M1A2 was installed in the center (a little shifted towards the right) of an open superstructure assembled on the chassis of Medium Tank M3.
aldwin presented two T32 prototypes, which after the addition of a cupola for an anti-aircraft machine-gun of 12.7 mm were standardized as M7 HMC in February 1942.
M7 HMC was produced by the firms American Locomotive Co (Alco) and Federal Machine and Welder Co. Whereas the M7B1 was produced by Pressed Steel Car.
A total of 3314 M7 were produced between April 1942 and 1944 whereas 826 M7B1 were produced between March 1944 and February 1945.
One tried to install on a M7B1, the British gun of 25-pdr Mark II (88 mm). But before the T32 prototype was finalized, best designs had been born.
The crew of M7 was composed of 7 men: the driver who took seat in the cockpit in the front-left corner of the hull, the commander and 5 gun crewmen which took seat in the compartment of combat. The driver had his commands pannel placed in front of him and the radio equipment was located on his left on the top of the left track. The driver had for his vision an armoured window on the left part of the frontal plate of the superstructure. The final command device was assembled transversely in front of him and the transmission on its right. As on M3, the transmission of the synchromesh type had 5 forward speeds and 1 reverse speed. The whole was protected on the first models by a nose in three parts bolted between them which was replaced on the last by a cast nose.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/4/2020 6:18:53 PM   
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M7 Priest 105 mm Howitzer late

The gun of 105 mm M2A1 was assembled on M4 mounting in the compartment of combat in the center protected by an armoured superstructure opened with the top. Mount was shifted slightly on the right. The howitzer had a traverse limited to 15° on the left and 30° on the right and had a depression of 5° and a elevation of 35°. M7 embarked 69 rounds of 105 mm arranged in racks on the overhangs of the tracks. Armament was supplemented by a .50cal machine-gun (12.7 mm) mounted on a circular cupola to the right of the gun which made a bulge on the right side of the superstructure. This cupola making think to a pulpit of priest, M7 was quickly baptized "Priest" (priest).
The engine of M7 was the gasoline engine Wright (Continental) R975 C1 of 9 cylinders (radial), of 15.9 L of cubic capacity developing 340 to 400 hp to 2400 rpm. This engine allowed on road a maximum speed from 34 to 39 km/h for an autonomy of 190 km. The back plate had a access double-door assembled on hinges. It was surmounted by a rectangular deflector of exhaust. The rear deck covering the engine compartment was composed of 2 large plates and a grid of ventilation. On each side of the rear deck on the mudguard one found two large cases of arrangement surmounted each one of a basket. Upper rear plate which surmounted the deflector of exhaust accomodated various tools and was flanked of the two back headlights. The remainder of the tools were laid out on the rear deck.
For model M7B1 one used the hull of Sherman M4A3 which was equipped with the engine Ford GAA (gasoline), 12 cylinders (mounted on line), 13.9 L of cubic capacity, developing 375-410 hp to 2100-2400 rpm, with air cooling. The quantity of embarked gasoline was the same one, as well as autonomy. On the M7B1 the rear deck covered all the width of the tank. It was composed of two plates and between the two, an access grid with two shutters assembled on hinges. The trunks of arrangement as well as the back headlights were assembled on the tilted sides of the rear deck. The back plate of the superstructure which made also all the width overhung a broad deflector of exhaust. The rear plate of the hull had only one small trap door assembled on hinge flanked of the two pipes of exhaust.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/5/2020 6:00:17 PM   
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M7B1 Priest 105 mm Howitzer

The Americans used M7 on all fronts: North Africa, Italy, Western Europe and the Pacific. The Marines intensively used it in Okinawa, especially as transport of troops (13 men took seat on board).
M7 offered an appreciable mobility to the 105 mm field howitzer. It was the counterpart of German Wespe in the category of armoured Artillery. As the machines of the same type M7 was not a weapon of contact because its open superstructure and its weak shielding made of it an easy prey even for infantrymen. The standard use was to make fire into battery (section of M7) since the back lines to ram the enemy positions as a battery of standard howitzers would do it.
The British troops were equipped with M7. The first 90 specimens were sent in Egypt in 1942, just before the beginning of the second battle of El Alamein. They is the British who gave to M7 its nickname of "Priest" in reference to the cupola in the shape of pulpit of church. M7 was used in North Africa and Italy by British VIIIth army.
The British also ordered a version equipped with their own field gun which was baptized Sexton and fought with this model in Western Europe after the first engagements in Normandy. Let us note that the Free French Army was also equipped with M7.
To realize an entirely tracked transport of troops, the British modified 102 M7 between October 1944 and April 1945. The 105 mm and the racks of ammunition were simply withdrawn to release the space of the compartment of combat. This conversion baptized Kangaroo could in more of its two crewmen carry 20 infantrymen or a mortar and its crewmen.
The British also realized a version of command, Priest Op. As Kangaroo the compartment of combat was released to accomodate radio sets.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/6/2020 6:12:55 PM   
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M37 Priest 105 mm Howitzer

Wishing a mobile mounting more compact and more economic than M7 Priest (based on Medium Tank M3) for the howitzer of 105 mm, the Americans developed T38 on the basis of chassis of the Light Tank M24 Chaffee. T38 was standardized in January 1945 as M37 105 mm HMC and made for the first time its appearance only in September 1945. Only 150 specimens were built by American Car & Foundry Co and Cadillac.
The crew of M37 was composed of 7 men: the driver sitting in the front-left corner of the hull, the commander and the 5 gun crewmen installed in the compartment of combat. The front cockpit was occupied by the pilot, the Hydramatic transmission comprising 12 speeds (8-4) and the final command device which transmitted the power to the front sprocket-wheels mounted perpendicular to the transmission and the instruments of control and steering. For his vision the pilot had a rotary episcope on the only oval trap door of access preserved compared to M24. The inclined nose of M24 was preserved just as it is, safe forthe machine-gun assembled on ball which was removed. The compartment of combat entirely occupied all the remainder of the tank covering the engine compartment to the back. This compartment of combat vaster than that of M7 Priest allowed a greater storage of ammunition. Indeed M37 transported 126 projectiles of 105 mm instead of 69 for M7. The armament consisted of an howitzer of 105 mm M4 assembled on M5 mounting assembled in front of the compartment of combat a little shifted on the right and a machine-gun of 12.7 mm installed on a cupola of shooting located at the right side of the principal weapon. As for M7, this cupola in the shape of pulpit of church got for M37 the nickname of Priest (priest)




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RE: Pacific, Heroes and Leaders mod Expansion - 10/7/2020 6:45:06 PM   
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M12 155 mm Gun

When the war began in Europe in 1940, it became clear, that the USA would be likely to take part in it, early or late. It was thus decided to develop a self-propelled gun to provide more mobility to field artillery. The choice of the engineers was made on the French gun of 155 mm of the 1st world war. This gun was to be installed on the chassis of the medium tank M3 Lee.
The T6 prototype was finalized and tested during the summer 1941 successfully and it was approved for the production as M12 155 mm Howitzer Motor Carriage. The gun of 155 mm was installed to the back of the completely worked over again superstructure, just behind the engine moved towards the center.
A total of 100 specimens were manufactured in 1942-1943 by Baldwin Locomotive Works. Because of mechanical difficulties and doubt as for the reliability and the utility of this weapon, this first series was not followed by others.
In preparation of the campaign of Western Europe, 75 specimens were modernized in 1944 to be sent there. These specimens had bogies of the M4 type, not door on the right side of the cabin for the driver and a small shield for the howitzer.
Because of the lack of place in the compartment of combat to install all howitzer crewmen and an acceptable reserve of ammunition. A special version of M12 was created to cure this problem.
M30 was identical to M12, if not that its howitzer of 155 mm was removed. The station of combat thus released could accomodate 40 projectiles of 155 mm as well as two howitzer crewmen who could not find place in M12. M30 was equipped with hatchback to contribute to the loading of the ammunition and of a circular for a .50cal machine-gun (12.7 mm). There was a M30 for each M12.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/8/2020 7:11:05 PM   
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LVT-2 Water Buffalo

Because of premature wear of the tracks and suspension on the LVT-1 Alligator, it was thus necessary to develop a new vehicle more resistant to sea water corrosion. Work begins during the summer 1941 in agreement between FMC and Navy's Bureau of Ships. The prototype was supplemented December 1941 and subjected to various intensive tests and evaluations. The new model was called LVT-2 Water Buffalo.
The principal modification compared to the LVT-1 is on the level of the suspension and the tracks. The suspension of the rigid type of the LVT-1 was replaced on the LVT-2 by a suspension of the type Torsilatic (springs of torsion). This suspension comprised each side a front sprocket-wheel (37 teeth), a back idler (33 teeth) adjustable, 11 independent road wheels and two return rollers. The suspension devices were articulated around a broad box in the shape of trapezoid. The new tracks assembled on the LVT-2 are completely hermetic to sea salt and sand. They in are equipped with grousers (blades) in the shape of "W". Old diagonal grousers caused a side pressure and a wear in water.
The armament comprised a machine-gun of 12.7 mm (.50cal) and three machine-guns of 7.62 mm (.30cal) assembled on the roof of the cabin or the walls of cargo-space. This arrangement could vary according to the preferences of the crews and field realities.
Like the LVT-1, the LVT-2 was divided into three parts: the cockpit accomodating the three men of crew, cargo-space which can accomodate 24 passengers or 3 tons of material and the engine compartment. The final shape of the hull required the test of 100 different versions. The superstructure of the cabin is much smaller and lower than that of the LVT-1, it does not cover any more entirety the front part of the vehicle. The sides of this one were tilted and either vertical. It comprised two broad windows of vision in front and two smaller on the sides. The LVT-2 was larger than the LVT-1, it was 7.95 m long, 3.25 m broad, 2.50 m in height and weighed 14 tons. Like the LVT-1, the LVT-2 was not armoured.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/9/2020 6:55:12 PM   
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LVT(A)-2 Water Buffalo

LVT(A)-2 was developed starting from LVT-2 in order to provide more protection to the crew. This machine is the only Amtrac to receive designation (A) or Armored. LVT(A)-1, LVT(A)-4 and LVT(A)-5were all Amtanks and were equipped with turrets and guns. This conversion known at the beginning under the designation of T33 was developed at the request of the Army which wished to armour Amtracs in the current of 1942. At that time LVT-2 and LVT(A)-1 were under development and one simply decided to equip LVT-2 with certain elements of LVT(A)-1. In fact except for the cabin LVT(A)-2 did not differ quasi from LVT-2.
The armament comprised a machine-gun of 12.7 mm (.50cal) and three machine-guns of 7.62 mm (.30cal) assembled on the roof of the cabin or on the walls of cargo-space. This arrangement could vary according to the preferences of the crews and field realities.
Like the LVT-2, the LVT(A)-2 was divided into three parts: the cockpit accomodating the three men of crew, cargo-space which can accomodate 24 passengers or 3 tons of material, and the engine compartment accomodated always the same engine as the M3A1 Light Tank, the Continental W-670-9A (gasoline) of 7 cylinders developing 250 to 262 hp. This engine made it possible the Buffalo Toilets to reach the 30 km/h on ground and the 12 km/h in water. The LVT(A)-2 had an autonomy of 240 km on ground and 80 km in water. The driveshaft traversed all cargo-space in length to join the transmission of the Synchromesh type (synchronized) comprising 6 speeds (5/1). The power was transmitted to the front sprocket-wheels. On the LVT-2, the rear deck was composed of three plates whose central plate (broadest) had a grid of ventilation assembled on hinges. However on the LVT(A)-2 the grid was removed and replaced by an armoured plate. The back plate of the hull did not comprise any opening if not the exhaust ports. Another change, fuel tanks with automatic obturation were installed to prevent any risk of fire and explosion.
The production of LVT(A)-2 began in 1943 and and continued in 1944. A total of 450 specimens only were manufactured by the FMC, Borg-Warner Corp. and Roebling, all delivered to the Ground Army. In March 1944, kits usable on the ground will be provided (armour-plates) and will be welded onto basic LVT-2 used as amphibious vehicles of assault. Approximately 1000 LVT-2s were thus converted but were never called LVT(A)-2.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/10/2020 7:37:47 PM   
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LVT-3 Bushmaster

During the development of the LVTs, Navy' S Bureau of Ships requested the assistance of the Morse Claim Company (Borg-Warner Corp.). The latter studied the LVT-1 and decided to create a very new design in order to solve the defects of this one. The development of the new model immediately began (February 1942) and the first pilot model was supplemented in August 1942 after only 6 months of work. The LVT-3 Model A was a combination of new ideas based on the original Alligator and the LVT-1. The suspension of the Torsilastic type (torsion springs) comprised each side a front sprocket-wheel, 11 independent road wheels (bigger size than those of the LVT-1), two return rollers and an adjustable back sprocket-wheel. The front sprocket-wheels were coupled with an entirely automatic transmission. The external walls of Model A out of corrugated steel had a higher total strength and a lighter weight. But one of the most remarkable innovations is the possible conversion of this amphibious carrier in amphibious tank by the installation of a turret of light tank M3 Stuart. However the new design did not have enough innovations compared to the new LVT-2 of FMC. Let us note that the idea to mount the turret of M3 Light Tank was taken up by FMC for its Amtank LVT(A)-1.
The armament officially made up of a heavy machine gun of 12.7 mm (.50cal) and two machine-guns of 7.62 mm (.30cal) could vary according to preferences of the crew. LVT-3 was not armoured. Model B was standardized as LVT-3. Although comprising elements of LVT-2 and of LVT-4, LVT-3 resembled to LVT-1 more. Indeed the very tilted nose was easily recognizable compared to the very pointed noses of LVT-2 and LVT-4. The top of the cabin (provided with four windows of vision) occupied all the front part of the vehicle like on the LVT-1. LVT-3 was a very successful design, weighing a half thunders of less than LVT-4 and being able to transport 1360 kg more. It was however slower. The firms Graham-Paige and Borg-Warner manufactured 2964 in 1943-45 of them.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/11/2020 6:51:40 PM   
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LVT-4 Water Buffalo

One of the largest defects of the LVT-1 and LVT-2 was the central localization of the cargo-space what did not facilitate the the loading and unloading. This provision had as a reason the localization to the back of the engine compartment. To reach or leave the vehicle, the passenger were to climb or jump over the sides. During an attack, it was quasi suicidal. The driveshaft which from the engine traversed all cargo-space until the transmission, limited the possibilities of loading of material.
To solve this problem the FMC decided to modify the LVT-2 by moving the engine compartment from the back of the vehicle, just behind the cockpit and installing to the back an access ramp. Thanks to this slope assembled on hinges, the access to the vehicle was easy, as well as the evacuation of the passengers. This provision was more making safe for the infantrymen who left the vehicle by the back, this last offering to them thanks to its mass a protection against the enemy snippers. One could now charge more easily and quickly material as well as a Jeep or an howitzer of 105 mm. The capacity of loading of the LVT-4 was of approximately 4 tons or 30 passengers (removable benches were installed). The LVT-4 was 7.95 m long, 3.25 m broad, 2.50 m in height and weighed 16500 kg. Let us note that the sides of the LVT-4 were prolonged more in height.
Marines and the Navy were impressed by the new possibilities that offered this new design and ordered its setting in production immediate. The LVT-4 which preceded the LVT-3 at the time of its service entrance was manufactured to 8438 specimens by the FMC, Graham-Paige and St Louis Car Co in 1944-1945. This total was divided between the Ground Army (6083), the Marines (1765) and the allied countries (503).




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RE: Pacific, Heroes and Leaders mod Expansion - 10/12/2020 6:30:58 PM   
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LVT(A)-1 early

Because of the risks to meet a Japanese armoured opposition at the time of the reconquest of the Pacific, the Marines wished to have an armoured LVT, armed with a turret with gun able to face there. It acted either of an amphibious carrier but of a genuine amphibious tank or Amtank. The Marines contacted FMC, which developed its LVT-2 Water Buffalo whereas Borg-Warner developed a similar convertible vehicle being able to accomodate a turret of M3 Stuart Light Tank. However the design of Borg-Warner resembled too much to the Alligator of Roebling and the Navy, preferred the LVT-2 of FMC to it. It was thus the latter which was selected as bases for this first Amtank.
The prototype had a cabin rather different from that of the LVT-2 with armoured ports of vision and two machine-guns of 7.62 mm mouunted in front of the cabin. Two trap doors of access with episcopes were assembled on hinges on the roof of the cabin. For the models of production one recovered the cabin of the LVT-2. However all the windows of vision were removed, except that of the driver who was equipped with an armoured shutter. This cabin did not have a machine-gun, which the experiment of the combat showed being a defect, because frontal local defense against the enemy infantrymen was assured only by the coaxial machine-gun the turret, in so far as this one is pointed in the good direction. On the last models a machine-gun of 7.92 mm (.30cal) mounted on ball was assembled to the right of the window of vision of the driver. This cabin was also surmounted by two trap doors with episcopes assembled on hinges.
To create a closed compartment of combat, the cabin was prolonged over the three-quarter of the space-cargo. This compartment comprised a trap door assembled on hinge on each side like two trap doors also assembled on hinges on the roof. The roof of the compartment of combat also accomodated the circular of 1.187 m of the turret. The compartment of combat also accomodated the 104 projectiles of 37 mm and the 6000 cartridges of 7.62 mm embarked.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/13/2020 7:04:51 PM   
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LVT(A)-1 late

The selected turret was that of the M3A1 Light Tank. However, the rear bulge which accomodated the radio station was removed, because there was enough space in the interior of the hull to accomodate the radio equipment. Traverse was done by means of a hydraulic system or manually. Elevation was made as for it manually (maximum depression: -10° - maximum elevation:+25°). The gun was provided with a gyrostabilisator to allow the use of the weapon when the vehicle is moving. This device was quasi useless in water because of rolling and the pitching which prevented any precise shooting. The gun of 37 mm M6 was assembled on a M44 mounting with a coaxial machine-gun of 7.62 mm (.30cal). The gun of 37 mm M6 had a length of 56 calibers and an initial speed varying between 776 and 884 m/s. The gun of 37 mm could transpierce 48 mm of shielding under 30° with 500 m. It fired only piercing projectiles. Let us note that the breech-block of M6 was semi-automatic.
The devices of vision of the turret comprised in more of the sight tube assembled on the mantlet, on the roof two rotary episcopes (mounted on the right trap door and just in front of the latter) and a fixed episcope (mounted in front of the trap door of left). The two trap doors of access located at the back of the roof of the turret were assembled on hinges.
The turret did not lay out another armament separately the gun and the coaxial machine-gun. To ensure the defense of the back of Amtank against the attacks of the enemy infantrymen, two stations of machine-guns of 7.92 mm (.30cal) were to create to the back of the old cargo-space. They were two circular holes pierced in an armour-plate covering the back of the cargo-space, just behind the superstructure of the compartment of combat. At the beginning the machine gunners were protected only in front by the shield from their machine-gun and the partial shield of the circular. Thereafter a broad semicircular shield will come to protect the sides and the back from the station of shooting.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/14/2020 10:33:18 AM   
CHINCHIN

 

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I'm looking forward to seeing the units and the scenarios!

Will they be there soon?

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RE: Pacific, Heroes and Leaders mod Expansion - 10/15/2020 10:09:36 PM   
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The units of the Imperial Army Japan are almost finished. Only some vehicles are missing. Right now I'm going to start posting these units.

The Marines and the rest of the US material from the Pacific and Europe are missing.

The scenarios I have not started. First I have to define the new terrain and its rules. It's fast but it has to be done.

Patience.

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RE: Pacific, Heroes and Leaders mod Expansion - 10/15/2020 10:16:07 PM   
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LVT_A-1 M24 turret

The Army required in June 1944, that the turret of LVT(A)-1 have replaced by that of M24 Chaffee Light Tank in order to increase the fire power of the vehicle. To compensate the weight increase, the transmission and the suspension were reinforced. To accomodate the turret of M24, the compartment of combat was also modified because the circular of this one was broader. The turret was assembled to the back of the compartment of combat. There was no station of machine-gun to the back. The tests showed its instability in water.
The turret which did not have a well of turret, vaguely had the shape of a river flat stone. The sides were prolonged to the back to form a projection which accomodated the radio station of the tank which one sees the antenna on the left side. One reached the turret via the cupola of commander located at the center-left of the roof: the latter were equipped with 6 armoured panes for fixed episcopes and with a circular trap door assembled on hinge equipped with a fixed episcope, or via a trap door in the shape of parallelogram mounted on hinges located at the center-right of the roof. The turret still had an opening protected by an armoured valve on the right side for the evacuation of the casings. The turret accomodated the last three men of crew: the commander, sitted in the back-left corner, the gunner sitting in the front-left corner and the loader sitting in the back-right corner. The turret was hydraulically-operated but could be operated manually. Separately the episcopes of the cupola of the commander, the turret was still equipped with a fixed episcope to the front-left for the use of the gunner. This turret was armed with the gun of 75 mm M6 L/39 on M34 mounting with a coaxial .30cal machine-gun (7.62 mm) and a monocular sight tube. This gun is a version reduced of M3 assembled on M4 Sherman intended for the origin to the bomber B-25 Mitchell. M6 weighed half less than M3 and had the same performances. M6 in was equipped more with a concentric system of recoil, which got more espace in the interior of the turret. Armament was supplemented by an anti-aircraft .50cal machine-gun (12.7 mm) mounted on a tripod mounting to the back of the turret.
One thought to regulate instability in water, by reducing the length of the vehicle from 20 to 23 cm and by reducing the weight of the turret and by moving this one forwards (5 cm) for a better balance. However these modifications were never made because of the end of the war, and the project was finally abandoned. However this design was very promising, and got for Amtank a fire power ever reached up to now.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/16/2020 6:16:55 PM   
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LVT(A)-4 early

LVT(A)-1 was developed to provide a support fire to the amphibious waves of assault during the first critical hours before the light and medium tanks can be landed. However these Amtanks armed with the gun of 37 mm M6 met only very few Japanese tanks in the reconquest of the Pacific Islands. On the other hand the Japanese transformed those into fortresses constellated with strengthened works. The gun of 37 mm was completely impotent to bore bunkers. Amtank equipped with a more powerful armament was thus necessary. It was thus determined to replace the turret of M3 Light Tank by that of M8 Howitzer Motor Carriage armed with the howitzer of 75 mm. Although having a swiftness of half less than that of the gun of 37 mm, this weapon was able with high-explosive shells to destroy the Japanese bunkers and its effects were more devastators.
This turret was assembled on modified LVT-2 and armoured, like for the turret of M3 Stuart. The first cabins were equipped with only one window of vision (with armoured shutter) and of two trap doors of access with rotary episcopes on the roof. As for first LVT(A)-1s, first LVT(A)-4s missed means to ensure a frontal brought closer defense against the Japanese kamikazes infantrymen. Thereafter a new cabin was installed with a machine-gun of 7.62 mm (.30cal) assembled on ball on the frontal plate of the cabin. On this cabin, the episcopes of the trap doors were removed. The vision of the crew of the cabin was ensured by four ports of vision laid out on the sides and the frontal plate of the cabin.
The production of the LVT(A)-4 at FMC began in 1944 and one total of 1489 specimens was supplemented during this year, follow-ups by 401 other models in 1945. A total of 533 specimens was given to the Corps of the Marines which formed with them 3 Amtank Battalions. The Army in received 1307 and formed 7 Amtank Battalions. Only 50 LVT(A)-4s were yielded to the allied countries. Perfectly able to destroy the Japanese strengthened places and the rare Japanese tanks met, the LVT(A)-4 however suffered from the lack of protection gotten to the crew of the open turret. This one was indeed exposed to the shooting of the Japanese snippers. The first models in more were hardly armed with only one machine-gun against the Japanese kamikazes infantrymen.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/17/2020 6:06:34 PM   
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LVT(A)-4 late

This turret was assembled on modified LVT-2 and armoured, like for the turret of M3 Stuart. The first cabins were equipped with only one window of vision (with armoured shutter) and of two trap doors of access with rotary episcopes on the roof. As for first LVT(A)-1s, first LVT(A)-4s missed means to ensure a frontal brought closer defense against the Japanese kamikazes infantrymen. Thereafter a new cabin was installed with a machine-gun of 7.62 mm (.30cal) assembled on ball on the frontal plate of the cabin. On this cabin, the episcopes of the trap doors were removed. The vision of the crew of the cabin was ensured by four ports of vision laid out on the sides and the frontal plate of the cabin.
To create a closed compartment of combat, the cabin was prolonged over the cargo-space. Contrary to those of the LVT(A)-1, the side walls of the compartment of combat of the LVT(A)-4 were tilted. This compartment comprised a trap door assembled on hinge on each side like two trap doors also assembled on hinges on the roof. The roof of the compartment of combat also accomodated the circular of 1.38 m of the turret, this circular was broader than the roof of the compartment and thus made covered on the sides. The compartment of combat also accomodated the 100 projectiles of 75 mm and the cartridges of the embarked machine-guns.
The turret inherited of M8 HMC assembled on the first LVT(A)-4 was armed with an howitzer of 75 mm M3 on M7 mounting. This weapon fired high-explosive shells at low initial speed but to high devastator capacities. The turret which did not have a roof could swivel (manually) on 360° and the howitzer had a maximum depression of 20° and a maximum elevation 40°.
A first solution was brought while installing a machine-gun of 7.62 mm (.30cal) in front of the cabin which could take responsibility for the frontal brought closer defense. However for more effectiveness, starting from the reconquest of Mariannes, certain crews replaced the machine-gun of 12.7 mm (.50cal) by two machine-guns of 7.62 mm assembled on pivots on the sides of the turret. These machine-guns could easily cover with their fire the sides as well as front and the back of the tank. Though that was the arrangement of the secondary armament of the turret, this one was equipped with shields.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/18/2020 6:20:55 PM   
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LVT(A)-5

he LVT(A)-5 is an official version of the LVT(A)-4 taking all the modifications made on the "Marianas Model' ' of the LVT(A)-4: a machine-gun of 7.62 mm (.30cal) assembled on ball in front of the cabin and two machine-guns of 7.62 mm assembled on pivot on the sides of the turret, in the place of the machine-gun of 12.7 mm (.50cal).
The LVT(A)-5 had in more one gyrostabilisator for the howitzer of 75 mm M3 which enabled him to make fire moving and in water, a counterweight was also assembled on the tube. The turret was also equipped with a hydraulic system of rotation and a well of turret.
A total of 269 LVT(A)-5s were produced by FMC at Riverside (California) in 1945 before the end of the war puts a term at the production.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/19/2020 6:19:53 PM   
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M2 Halftrack Car

The half-tracked vehicles knew their hours of glory during the second world war within the allied and the Axis forces. In fact only the Germans and the Americans developed and carried out in very great number of this kind of vehicle to form their divisions motorized. These vehicles had better cross-country capacities that the trucks and the armoured cars. Important fact, the German halftracks distributed the power of their engine only on the two tracked trains only whereas the US models also distributed this one on the nose wheeled train. The steering on the American models was made with the means of the nose wheels then that the models German also used their tracked trains while exploiting the speed of the sprocket-wheels or while slowing down on one or on the other.
M2 Halftrack Car was developed in 1939 by Diamond T Motor Car Co under the name of prototype T14 Halftrack APC based itself on the M2A1/M3 Scout Car (wheeled vehicle). In September 1940 the prototype was accepted for the production and between 1940 and 1943, 11415 specimens were produced by White Motor Co. (8423) and Autocar Co. (2992). Among these specimens, let us note that 1266 were converted thereafter into M2A1 Halftrack Car.
M2 was finalized to be used as vehicle of reconnaissance or like artillery tractor. M2 as all halftracks was divided into three parts: the engine compartment in front (equipped with a frontal plate with armoured shutters protecting the radiator), the driving cab in the middle and the compartment of load to the back. The gasoline engine White 160AX of 6 cylinders developing 147 hp installed in front transmitted its power at the same time to the front procket-wheels of the tracked suspension and to the nose gear wheels which gave the steering. This excellent engine made it possible M2 to reach the 72 km/h on road and the 272 L of fuel load got an autonomy of 320 km to it on road (the principal fuel tanks were on the sides about the middle of the compartment of troop). The transmission Spicer 3461 comprised 5 speeds (4/1). The steering was obtained by means of a simple steering wheel. The tracked suspension included on each side a front sprocket-wheel with 18 teeth, a bogie truck equipped with 4 small steel road wheels and a return roller, and a back idler. Only the nose gear wheels were equipped with shock absorbers. The tracks used by M2 were in rubber with central guides. They were 300 mm wide and included each one 58 links.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/20/2020 6:33:25 PM   
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M2A1 Halftrack Car

The half-tracked vehicles knew their hours of glory during the second world war within the allied and the Axis forces. In fact only the Germans and the Americans developed and carried out in very great number of this kind of vehicle to form their divisions motorized. These vehicles had better cross-country capacities that the trucks and the armoured cars. Important fact, the German halftracks distributed the power of their engine only on the two tracked trains only whereas the US models also distributed this one on the nose wheeled train. The steering on the American models was made with the means of the nose wheels then that the models German also used their tracked trains while exploiting the speed of the sprocket-wheels or while slowing down on one or on the other.
The cabin accomodated two men: the driver sitting on the left and his assistant sitting on the right. The access to the cabin was done via the two side doors (with ports of vision). The windshield of the cabin was equipped with an armoured shutter equipped with two ports of vision. The cabin did not have a roof. Just behind the seats of the drivers (in the medium) was a third seat for the commander of the vehicle. The remainder of the back compartment was occupied by seats for 7 men and of the trunks of arrangement (behind the seats of the drivers). The access to the back compartment was done by the cabin (not partition between the two) because this one did not have back door. The back compartment as well as the cabin did not have a roof but could be covered with a hood. The armament consisted of a machine-gun .50cal (12.7 mm) M2HB and a machine-gun .30cal (7.62 mm) M1919A4 assembled on retractable mountings sliding along a rail making the whole of the back compartment and the cabin. In front, the M2 was equipped with a roller to protect the nose from the machine on the very broken grounds or with a winch. The shielding of M2 was 6.4 mm for all the faces safe for the armoured shutter of the windshield (13 mm).
To improve its protection counters the air raids or terrestrial, M2 was equipped on the right side with the cabin with a circular mounting M45 "Pulpit" for machine-gun of 12.7 mm (.50cal) Browning M2HB. This new model was baptized M2A1 Halftrack Car. Between October 1943 and March 1944, 1643 M2A1 were produced (including 1266 M2s converted). The rail making the turn of the compartment of combat was removed, it was not practical in condition of combat. Three receptacles for machine-guns .30cal were installed in its place (two on the sides and one to the back).




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RE: Pacific, Heroes and Leaders mod Expansion - 10/21/2020 6:25:00 PM   
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M3 Halftrack Car

Marmon-Herrington and other manufacturers developed a new suspension using rubber tracks. This suspension gave excellent results and the Defence Department adopted it as bases for the future achievements. It will become the standard suspension of the M2/M3 Halftracks and all US half-tracked vehicles of the 40-45 war. The US Cavalry wished to replace these Scout Cars (armoured cars of reconnaissance) by Halftracks better adapted to the difficult grounds. In 1938, M3 Scout Car was modified by the adoption of a tracked suspension (inherited T9 Halftrack Truck) in the place of its rear wheel-axle unit. This model was baptized T7. Cependant, T7 was under-motorized and the nose gear was used only for the steering. In September 1940, this experimental vehicle was accepted for the production under the name of M2 Halftrack Car. The Infantry asked for its use a similar vehicle equipped with a longer hull to transport a section of Infantry. This new model was called T8 Halftrack Personnel Carrier which will be standardized as M3 Halftrack Personnel Carrier. The interior of the vehicle was also too narrow.
Since 1937, several models of half-tracked vehicles of reconnaissance, artillery tractors, transport of troops or material were developed by Cunningham, Linn, GMC and Marmon-Herrington (series T1-T9E1) bound for the Cavalry and Artillery mechanized. The models of Cunningham were based on the chassis of the truck Ford 1.5-tone 4x2 Model 1936 combining wheeled nose and back tracked unit. These models all were equipped with the supports of road wheels of the Kégresse type however defective. These machines were used as transport material and personnel in many units of US mechanized divisions. M2 and the M2A1 equipped also various allied countries like Great Britain, the USSR or France.
The first models officially adopted by US Army was T14 Halftrack APC in 1939, developed by Diamond T Motor Car Co based the chassy and the body of the wheeled vehicle of cavalry M3A1 Scout Car. This model derived from T7 had been created at the request of Artillery but contrary to the model of Cavalry was equipped with a more powerful engine. During the tests in 1940, officers of Infantry were present and were struck by the potential of this kind of vehicle for their own weapon. In comparison to successes of the German mechanized troops (composed of semi or entirely tracked vehicles) during Blitzkrieg in 40-41, the Americans decided to produce in mass the halftracks from the end 1940 to equip their mechanized divisions in construction. The threats of a future engagement of the USA were felt more and more.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/22/2020 6:31:50 PM   
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M3A1 Halftrack Personnel Carrier

M2 Halftrack Car which had been conceived for the Cavalry and of the reconnaissance missions, could accomodate only 10 men, crew included, which was insufficient to play a part of transport of troop because a section of infantery was made up of 10 men. Moreover because of the rail for .30cal machine-guns making the circumference of the compartment of troop, M2 did not have back access doors to charge or discharge its passengers. A version longer and better adapted to this kind of mission was thus carried out. A total of 12391 specimens were produced by White Motor, Autocar, Diamond T. 108 M3 75 mm GMC were converted.
In fact, M3 very resembled to M2 if not that the hull was prolonged towards the back of a few centimetres, and that because of the removal of the rail, a door could be installed to the back. The trunks present behind the seats of the pilots on M2 were also removed to install additional seats. M3 comprised 13 seats now: two seats for the pilot and the copilot in the cockpit, the seat of the commander just behind them and the seats of the infantrymen laid out by 5 on each side of the compartment of troop. The fuel tanks were moved forwards, in the place of the trunks of arrangement. Sites of arrangement were located below the seats and racks for rifles or carabines were installed behind the backs of the seats to the back of the compartment. Because of the removal of the rail, 3 receptacles for .30cal machine-guns (7.62 mm) were installed on the circumference of the station of combat coming to reinforce the pedestal accomodating a .30cal or .50cal (12.7 mm) machine-gun. As for M2, the front fender of the M3 was equipped with a roller helping the vehicle to be extracted from difficult grounds. Racks of mines traversed all the length on the sides of the compartment of troop. If not, the suspension, the engine and the performances were identical to M2, as well as the shielding.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/23/2020 6:40:50 PM   
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M3A2 Halftrack Personnel Carrier

As for M2, the provision of the armament of M3 was considered to be unsuited to the conditions of combat and the pedestal was replaced by a circular mounting M49 installed to the top of the right part of the cabin as on the M2A1. This mounting accomodated an anti-aircraft .50cal machine-gun. This model was called M3A1 Halftrack Personnel Carrier and started production at the end of 1943. Diamond T, White and Autocar produced T 2862 specimens of the M3A1 in 1943-1944. 2209 M3 were converted into M3A1.
In order to simplify, the production of the halftracks, Ordnance Department decided at the beginning of 1943 to amalgamate M2 and M3 in only one model. The T29 prototype was tested in spring 1943 and was accepted for the production in October as M3A2 Halftrack Personnel Carrier. At that time, however, the need for half-tracked vehicles was less important and this model was never manufactured in mass. The only innovation of this model copied on the M3A1, was its armoured circular mounting for the anti-aircraft .50cal machine-gun. Still let us note the retractable racks installed to the back of the vehicle.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/24/2020 6:51:39 PM   
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M5 Halftrack Personnel Carrier

From the beginning of the Second World War, the Americans were the principal suppliers of weapons and material of the allied forces because of their fantastic industrial capacities and the absence of bombardment on their territory. The same applies to the halftracks, however the firms up to now charged to produce them (White, Autocar and Diamond T) could not assume a such increase in the production and a fourth firm was recruited, International Harvester Company.
The models which were produced by this firm, present some differences with the models of the other firms. Indeed, modifications had been brought in the specifications of the half-tracked vehicles. One of most important is the replacement of the tempered steel plates by rolled homogeneous steel plates. With these plates, the shielding was 7.9 mm instead of 6.4 mm. The thickness of the shutter of the windshield was now 15.9 mm instead of 13. These plates were not any more bolted but were welded between them. The increase in the weight because of the shielding more raised, somewhat decreased the performances on the maximum speed level (68 km/h instead of 72 km/h). Harvester also includes there elements of its manufacture like engine RED-450-B (gasoline) of 6 cyl. developing 143 hp to 2700rpm, a new front axle, a new box of transfer and a new transmission (Spicer 1856) comprising 5 speeds (4/1). Harvester proposed two models, one of both, the M3E2 (based on M3) will become M5 Halftrack Personnel Carrier. To outside, the differences between M5 and M3 related to the mudguards of the nose gear which on M5 were flat and not rounded as on M3 (and M2), the corners were ounded to the back. The interior of M5 was arranged same manner that that of M3 and could accomodate 13 men. M5 was produced only by Harvester to 4625 specimens in 1942-1944.
As for M2 and M3, the armament of M5 was improved by the adoption of a circular mounting M49 installed to the top of the right part of the cabin as on the M2A1 and the M3A1. This mounting accomodated an anti-aircraft .50cal machine-gun. This model was called M5A1 Halftrack Personnel Carrier and was produced to 2959 specimens by Harvester in 1943-1944. In order to simplify, the production of the halftracks, Ordnance Department decided at the beginning of 1943 to amalgamate M5 and the M5A1 in only one model. The T31 prototype was accepted for the production in as M5A2 Halftrack Personnel Carrier. At that time, however, the need for half-tracked vehicles was less significant and this model was never manufactured in mass.




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RE: Pacific, Heroes and Leaders mod Expansion - 10/25/2020 6:27:14 PM   
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M9 Halftrack Car

To increase the production of the halftracks to equip the allied countries of the USA, a fourth firm was contacted, International Harvester Company. This firm realized two basic models fulfilling the same functions as M2 Halftrack Car and M3 Halftrack Personnel Carrier. One of both, M5 was the equivalent of M3. The other models, the M2E5 was the equivalent of M2. The M2E5 standarized as M9 Halftrack Car, started production in 1943 and was produced to 2026 specimens.
M9 was identical to M5, except for interior arrangement, with if not it had same dimensions, and had a shielding made up of rolled homogeneous steel plates with a thickness of 7.9 mm (15.9 mm for the shutter of the windshield), welded between them. The increase in the weight because of the shielding more raised, somewhat decreased the performances on the maximum speed level (68 km/h instead of 72 km/h). M9 was also equipped with engine RED-450-B (gasoline) of 6 cyl. developing 143 hp to 2700 rpm, a new front axle, a new box of transfer and a new transmission (Spicer 1856) comprising 5 speeds (4/1). M9 was also equipped with flat mudguards for the nose gear and the back corners were also rounded as on M5. Let us note that M9 (as M5) was equipped with a back door contrary to M2. M9 was intended in theory for reconnaissance missions like M2. M9 because of internal arrangement, could accomodate only 10 men, crew included.
As for M5, the armament of M9 was improved by the adoption of a circular mounting M49 installed with the top of the right part of the cabin as on the M2A1, the M3A1 and the M5A1. This mounting accomodated an anti-aircraft .50cal machine-gun. This model was called M9A1 Halftrack Car and was produced to 1407 specimens by Harvester in 1943. The M9A1 was sometimes equipped with one winch in the place of the roller to the front one.




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