Japanese BB's in Rangoon?

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Cornstar
Posts: 14
Joined: Sun Jul 27, 2008 6:40 pm

Japanese BB's in Rangoon?

Post by Cornstar »

As mentioned earlier in a post by Chryse (tm.asp?m=2551485) in my game against Japanese AI 2 BB's have entered the Rangoon hex (and subsequently trashed my empty amphib fleet). I didn't think this would have been possible, WITP Tracker AE tells me that the smallest BB class are Kongo's with 35740 Tonnage, and the manual states that "Only ships with tonnages of 15,000 tons or less may cross navigable river hexsides". Seems like a bug?

Currently playing 1106i, game was started april 2010, not sure which version that was.

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Day Time Surface Combat, near Rangoon at 54,53, Range 6,000 Yards

Japanese Ships
BB Mutsu, Shell hits 3
BB Hyuga, Shell hits 3, Torpedo hits 2, on fire, heavy damage
CA Haguro
CL Natori
DD Uzuki
DD Minazuki
DD Mikazuki
DD Karukaya

Allied Ships
DD Decoy, Shell hits 14, and is sunk
DD Fortune, Shell hits 3, and is sunk
xAK Steel Maker, Shell hits 5, heavy fires, heavy damage
xAP Dunera, Shell hits 2, Torpedo hits 2, and is sunk
xAP Dilwara, Shell hits 19, and is sunk
xAP Khandalla, Shell hits 15, and is sunk
xAK Bandra
xAK Catrine, Shell hits 4, on fire
xAK Erinpura, Shell hits 3, heavy fires
xAK Hunan, Shell hits 9, and is sunk
xAK Ikauna, Shell hits 1
xAK Loch Ranza, Shell hits 4, heavy fires
xAK Nirpura, Shell hits 10, and is sunk
xAK Surada
xAK Varsova, Shell hits 1, and is sunk
xAK Barjora, Shell hits 7, and is sunk
xAK Benrinnes
xAK Empire Glen, Shell hits 16, heavy fires, heavy damage
xAK Esperance, Shell hits 1, on fire
xAK Ettrickbank, Shell hits 2, and is sunk
xAK Historian, Shell hits 10, heavy fires, heavy damage
xAK Itaura, Shell hits 4, Torpedo hits 1, and is sunk
xAK Lavington Court, Shell hits 2, and is sunk
xAK Scottish Chief, Shell hits 23, and is sunk
xAK Uffington Court, Shell hits 6, and is sunk
xAK Jalakrishna, Shell hits 6, Torpedo hits 2, and is sunk
xAK Jalapalaka, Shell hits 8, heavy fires
xAK Shinkuang, Shell hits 5, and is sunk
xAK Anatina, Shell hits 3, and is sunk
xAK Dagfred, Shell hits 1, and is sunk
xAK Ima, Shell hits 28, and is sunk
xAK Slemmestad, Shell hits 3, and is sunk



Reduced visibility due to Thunderstorms
Maximum visibility in Thunderstorms: 6,000 yards
Range closes to 19,000 yards...
Range closes to 14,000 yards...
Range closes to 9,000 yards...
Range closes to 6,000 yards...
CONTACT: Japanese lookouts spot Allied task force at 6,000 yards
CONTACT: Allied lookouts spot Japanese task force at 6,000 yards
BB Hyuga engages DD Fortune at 6,000 yards
DD Fortune engages CA Haguro at 6,000 yards
CL Natori engages xAP Dilwara at 6,000 yards
CA Haguro engages xAP Dunera at 6,000 yards
DD Mikazuki engages DD Fortune at 6,000 yards
DD Mikazuki engages xAK Ima at 6,000 yards
DD Mikazuki engages xAK Nirpura at 6,000 yards
Range closes to 3,000 yards
xAK Uffington Court collides with xAK Historian at 54 , 53
DD Fortune sunk by BB Hyuga at 3,000 yards
DD Uzuki engages xAP Dilwara at 3,000 yards
DD Mikazuki engages xAP Dunera at 3,000 yards
DD Minazuki engages xAK Ima at 3,000 yards
DD Mikazuki engages xAK Jalakrishna at 3,000 yards
xAK Itaura sunk by CA Haguro at 3,000 yards
xAK Nirpura sunk by BB Mutsu at 3,000 yards
DD Mikazuki engages xAK Catrine at 3,000 yards
BB Hyuga engages DD Decoy at 3,000 yards
BB Mutsu engages xAK Lavington Court at 3,000 yards
CL Natori engages xAP Dilwara at 3,000 yards
xAP Dunera sunk by DD Uzuki at 3,000 yards
DD Karukaya engages DD Decoy at 3,000 yards
BB Hyuga engages xAK Ima at 3,000 yards
DD Karukaya engages xAK Dagfred at 3,000 yards
DD Uzuki engages xAK Jalakrishna at 3,000 yards
BB Mutsu engages xAK Barjora at 3,000 yards
DD Karukaya engages xAK Catrine at 3,000 yards
Range closes to 2,000 yards
BB Hyuga engages DD Decoy at 2,000 yards
DD Mikazuki engages xAP Khandalla at 2,000 yards
CA Haguro engages DD Decoy at 2,000 yards
BB Hyuga engages xAK Slemmestad at 2,000 yards
xAK Ima sunk by BB Hyuga at 2,000 yards
DD Decoy engages DD Mikazuki at 2,000 yards
xAK Anatina sunk by BB Mutsu at 2,000 yards
DD Uzuki engages DD Decoy at 2,000 yards
BB Hyuga engages xAK Hunan at 2,000 yards
DD Decoy sunk by BB Hyuga at 2,000 yards
DD Uzuki engages xAP Dilwara at 2,000 yards
xAK Slemmestad sunk by BB Mutsu at 2,000 yards
Range increases to 4,000 yards
BB Mutsu engages xAP Khandalla at 4,000 yards
BB Mutsu engages xAP Dilwara at 4,000 yards
DD Uzuki engages xAK Dagfred at 4,000 yards
DD Karukaya engages xAK Shinkuang at 4,000 yards
DD Karukaya engages xAK Jalapalaka at 4,000 yards
xAK Jalakrishna sunk by DD Mikazuki at 4,000 yards
DD Uzuki engages xAP Dilwara at 4,000 yards
BB Hyuga engages xAK Varsova at 4,000 yards
Range increases to 7,000 yards
xAP Khandalla sunk by BB Hyuga at 7,000 yards
BB Mutsu engages xAP Dilwara at 7,000 yards
CA Haguro engages xAP Dilwara at 7,000 yards
DD Mikazuki engages xAK Jalapalaka at 7,000 yards
DD Uzuki engages xAK Uffington Court at 7,000 yards
BB Hyuga engages xAK Scottish Chief at 7,000 yards
Range increases to 9,000 yards
xAP Dilwara sunk by BB Mutsu at 9,000 yards
BB Hyuga engages xAK Shinkuang at 9,000 yards
BB Mutsu engages xAK Uffington Court at 9,000 yards
DD Minazuki engages xAK Historian at 9,000 yards
Range increases to 11,000 yards
CA Haguro engages xAK Scottish Chief at 11,000 yards
DD Mikazuki engages xAK Uffington Court at 11,000 yards
DD Karukaya engages xAK Scottish Chief at 11,000 yards
BB Mutsu engages xAK Historian at 11,000 yards
DD Uzuki engages xAK Scottish Chief at 11,000 yards
BB Mutsu engages xAK Hunan at 11,000 yards
DD Uzuki engages xAK Steel Maker at 11,000 yards
Range increases to 12,000 yards
CA Haguro engages xAK Shinkuang at 12,000 yards
BB Hyuga engages xAK Uffington Court at 12,000 yards
DD Karukaya engages xAK Scottish Chief at 12,000 yards
DD Mikazuki engages xAK Historian at 12,000 yards
DD Uzuki engages xAK Ettrickbank at 12,000 yards
DD Uzuki engages xAK Scottish Chief at 12,000 yards
DD Mikazuki engages xAK Loch Ranza at 12,000 yards
DD Karukaya engages xAK Ikauna at 12,000 yards
CA Haguro engages xAK Erinpura at 12,000 yards
BB Hyuga engages xAK Catrine at 12,000 yards
xAK Dagfred sunk by BB Hyuga at 12,000 yards
xAK Shinkuang sunk by BB Hyuga at 12,000 yards
CA Haguro engages xAK Scottish Chief at 12,000 yards
CL Natori engages xAK Scottish Chief at 12,000 yards
DD Karukaya engages xAK Catrine at 12,000 yards
DD Uzuki engages xAK Ettrickbank at 12,000 yards
DD Uzuki engages xAK Hunan at 12,000 yards
BB Hyuga engages xAK Erinpura at 12,000 yards
Range increases to 13,000 yards
BB Hyuga engages xAK Jalapalaka at 13,000 yards
CA Haguro engages xAK Scottish Chief at 13,000 yards
DD Karukaya engages xAK Historian at 13,000 yards
DD Karukaya engages xAK Scottish Chief at 13,000 yards
DD Mikazuki engages xAK Benrinnes at 13,000 yards
BB Hyuga engages xAK Catrine at 13,000 yards
CA Haguro engages xAK Steel Maker at 13,000 yards
Range closes to 12,000 yards
BB Mutsu engages xAK Ettrickbank at 12,000 yards
CA Haguro engages xAK Scottish Chief at 12,000 yards
CL Natori engages xAK Scottish Chief at 12,000 yards
BB Hyuga engages xAK Ettrickbank at 12,000 yards
DD Mikazuki engages xAK Esperance at 12,000 yards
DD Minazuki engages xAK Scottish Chief at 12,000 yards
xAK Barjora sunk by BB Hyuga at 12,000 yards
BB Hyuga engages xAK Ikauna at 12,000 yards
DD Mikazuki engages xAK Erinpura at 12,000 yards
Range closes to 9,000 yards
DD Uzuki engages xAK Jalapalaka at 9,000 yards
BB Mutsu engages xAK Empire Glen at 9,000 yards
CA Haguro engages xAK Scottish Chief at 9,000 yards
CL Natori engages xAK Historian at 9,000 yards
DD Karukaya engages xAK Scottish Chief at 9,000 yards
DD Minazuki engages xAK Scottish Chief at 9,000 yards
DD Uzuki engages xAK Scottish Chief at 9,000 yards
BB Hyuga engages xAK Hunan at 9,000 yards
BB Mutsu engages xAK Steel Maker at 9,000 yards
Range closes to 6,000 yards
BB Mutsu engages xAK Jalapalaka at 6,000 yards
DD Minazuki engages xAK Uffington Court at 6,000 yards
xAK Scottish Chief sunk by CA Haguro at 6,000 yards
DD Karukaya engages xAK Historian at 6,000 yards
BB Mutsu engages xAK Hunan at 6,000 yards
Range increases to 8,000 yards
xAK Uffington Court sunk by BB Hyuga at 8,000 yards
DD Mikazuki engages xAK Empire Glen at 8,000 yards
DD Minazuki engages xAK Empire Glen at 8,000 yards
DD Uzuki engages xAK Empire Glen at 8,000 yards
DD Karukaya engages xAK Loch Ranza at 8,000 yards
Range increases to 12,000 yards
DD Uzuki engages xAK Jalapalaka at 12,000 yards
DD Uzuki engages xAK Historian at 12,000 yards
CA Haguro engages xAK Empire Glen at 12,000 yards
DD Karukaya engages xAK Empire Glen at 12,000 yards
DD Mikazuki engages xAK Empire Glen at 12,000 yards
DD Minazuki engages xAK Empire Glen at 12,000 yards
DD Mikazuki engages xAK Loch Ranza at 12,000 yards
Range increases to 15,000 yards
BB Mutsu engages xAK Empire Glen at 15,000 yards
CA Haguro engages xAK Empire Glen at 15,000 yards
CL Natori engages xAK Empire Glen at 15,000 yards
DD Minazuki engages xAK Empire Glen at 15,000 yards
DD Mikazuki engages xAK Empire Glen at 15,000 yards
DD Minazuki engages xAK Empire Glen at 15,000 yards
BB Mutsu engages xAK Loch Ranza at 15,000 yards
DD Uzuki engages xAK Catrine at 15,000 yards
Kogure, Gunji* orders Japanese TF to disengage
Range increases to 17,000 yards
DD Karukaya engages xAK Jalapalaka at 17,000 yards
CA Haguro engages xAK Esperance at 17,000 yards
CL Natori engages xAK Catrine at 17,000 yards
DD Karukaya engages xAK Benrinnes at 17,000 yards
DD Mikazuki engages xAK Catrine at 17,000 yards
DD Karukaya engages xAK Steel Maker at 17,000 yards
Range increases to 18,000 yards
BB Mutsu engages xAK Historian at 18,000 yards
DD Karukaya engages xAK Esperance at 18,000 yards
CL Natori engages xAK Empire Glen at 18,000 yards
DD Karukaya engages xAK Erinpura at 18,000 yards
Task forces break off...
CV2
Posts: 168
Joined: Thu Nov 04, 2010 5:49 pm

RE: Japanese BB's in Rangoon?

Post by CV2 »

You have a problem with BBs there, but you dont have a problem with an invasion force trying to maneuver in a river?
Cornstar
Posts: 14
Joined: Sun Jul 27, 2008 6:40 pm

RE: Japanese BB's in Rangoon?

Post by Cornstar »

ORIGINAL: CV2

You have a problem with BBs there, but you dont have a problem with an invasion force trying to maneuver in a river?

The invasion force (well, reinforcements actually, Rangoon is still mine (may '42)) was already in Rangoon. They were all carefully picked for size, all ships were < 15000 tonnes so they should be able to navigate the river leading up to Rangoon.

* edit: mind you, the hex 54,53 is the Rangoon hex itself.
dwg
Posts: 319
Joined: Tue Jan 22, 2008 1:35 am

RE: Japanese BB's in Rangoon?

Post by dwg »

you dont have a problem with an invasion force trying to maneuver in a river?

The real ones didn't! Major forces were landed at Rangoon in both '42 and '45. From the pretty fascinating history of the RIN in WWII at http://www.ibiblio.org/hyperwar///UN/In ... IN-14.html
Early in February 1942 British and Indian forces were hard-pressed in Burma. By 22 February these forces had been forced back behind the Sittang River. The threat to Rangoon was developing. Reinforcements were vital, but the dock situation in Rangoon did not permit the acceptance of the complete convoy of 17 ships due there on 21 February by the General Officer Commanding the Burma Coast. Japanese raids had scared all labour from the docks and in fact a large part of the civilian population had left the city, thereby causing great difficulty in maintaining essential services. Most of the convoy had, therefore, to be sent to India, but the 7th Armoured Brigade, one Indian Artillery Regiment, a British battalion and an Auxiliary Pioneer Battalion were landed. H.M.I.S. Hindustan (Commander I.B.W. Heanly, R.I.N.) provided escort for this part of the convoy which proceeded to the port of Rangoon.

On the night of 20 February, the convoy was piloted up the Rangoon river in complete darkness. The Hindustan remained at the river mouth on anti-submarine patrol until the forenoon when she proceeded upstream. But owing to an air raid on the port she had to remain under way and did not anchor until sunset. All civilians had evacuated the city. Tanks and other equipment remained unloaded by the army, while R.I.N. personnel assisted in the warehouses and manned local launches.

1945:
Protected by sloops of the Royal Indian Navy the convoy steered to the rendezvous on the mouth of the Rangoon river entirely without incident. Other convoys, heading in the same direction, passed them on or were overtaken. In the distance carriers with their escorts shadowed their course. It was the middle of the night when they arrived at the rendezvous. Troop carriers and ships of all sizes were already assembled. A fitful moon intermittently lit the scene as troops piled from the big ships into small assault craft. To their south lay the powerful units of the East Indies Fleet including battleships and aircraft carriers which secured them from surface interference. Skilful seamanship was required in that strong tide and swell to get the landing craft lowered, and with their light escorts they set off to the assault.

[snip] Bombardment from big ships was ruled out by the shallow water, and for supporting fire reliance was placed on the motor launches and the guns mounted on the landing craft. "In this Assault, Royal Indian Navy was proud to play a minor but nevertheless a worthy part" wrote a Royal Indian Navy observer. Two sloops H.M.I.S. Sutlej and H.M.I.S. Cauvery which had helped escort convoys to the mouth of the river now stood ready to bombard shore positions if required.

The convoy arrived at the lowering point off the mouth of the river and the intricate task of putting soldiers into assault craft was carried out in darkness and heavy rainstorm which drenched the troops. The apparent confusion as hundreds of craft manoeuvred for positions rapidly resolved itself into orderly formations, and at dawn a splendid spectacle presented itself of twin assault forces destined for east and west banks of the river complete with guns, tanks and supporting weapons moving off on the flood tide exactly according to schedule.

It was important for the troops to move up the river with a strong six-knot tide in their favour according to schedule, disembark ii H-Hour and allow craft to return to their ships on ebb tide for the next wave of the Assault Force. Everything went as planned and the initial landings met with little opposition. In this assault a major part was played by Indian troops. In addition to paratroopers who were dropped on Elephant Point at the mouth of the river on D-minus-one and had successfully secured their objective, the first wave included the Jats, Frontier Force Rifles and Eighth Gurkhas On the west bank and Garhwalis, Lincolns and First Punjabis on the east bank of the river, while Sherman tanks of the 19th Lancers supported the assault. A naval feature of the assault was the support provided by landing craft guns which were intended to eliminate Japanese strongpoints by close-range bombardment. Air bombing, which preceded the landing was also heavy and effective.
[snip]
A particularly dangerous role was assigned to a force of auxiliary minesweepers of the Royal Navy. These drew less water than their consorts and were therefore given the task of proceeding into the Rangoon river and sweeping the shallow reaches as well as the navigational channel. They took with them surveying parties to ascertain and mark out the navigational channel and to make points of bearing ashore more conspicuous. As there was no time to lose, these minesweepers proceeded on D-Day into the river while the rest of the force continued outside widening the approach channel already swept. It was believed that the estuary was mined and, in fact, the little minesweepers steaming bravely in formation found a number of mines on the first day in the river and bagged others during the next 48 hours. All the time the surveying parties were at work and buoys were being laid along the route that the minesweepers had cleared.

So that's an assault wave of two brigades, with additional LCGs, minesweepers and a couple of sloops on standby, all operating quite happily in the river. Maybe the transports didn't go in with the first wave, but Rangoon was capable of taking them once the channel had been cleared.
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