What was the most succesful aerial torpedo attack?

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Lecivius
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What was the most succesful aerial torpedo attack?

Post by Lecivius »

I am not gonna scream on the forum about my losses. I'll save that for my poor PC in the comfort of my own home [:D] But after watching the high level of success of ms. Betty & Ms. Nettie, I went looking this afternoon to see if I could find results as seen in the game.

Interestingly, I found CB's thread [8D]

tm.asp?m=2284745&mpage=1&key=&#2284745

While that mentions ship launched attacks, he specifically left out aerial attacks. So, thoughts? And please, just the facts, ma'am. No ranting [:-] [;)]
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RE: What was the most succesful aerial torpedo attack?

Post by wdolson »

Are you talking about in game or in the real world?

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Lecivius
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RE: What was the most succesful aerial torpedo attack?

Post by Lecivius »

Real world. Taranto had about 12 Swordfish actually carrying torpedoes, 5 of which hit stationary targets heavily reconned. The raid on force Z consisted of 86 aircraft that scored 9 hits. The Pearl Harbor raid information is a little loose on exact numbers. I am trying to understand who was most effective generally.
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RE: What was the most succesful aerial torpedo attack?

Post by msieving1 »

ORIGINAL: Lecivius

Real world. Taranto had about 12 Swordfish actually carrying torpedoes, 5 of which hit stationary targets heavily reconned. The raid on force Z consisted of 86 aircraft that scored 9 hits. The Pearl Harbor raid information is a little loose on exact numbers. I am trying to understand who was most effective generally.

The attack on Musashi scored between 10 and 20 torpedo hits, with 19 most commonly cited. I'm not sure offhand how many torpedo carrying Avengers there were.
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Lecivius
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RE: What was the most succesful aerial torpedo attack?

Post by Lecivius »

ORIGINAL: msieving1

The attack on Musashi scored between 10 and 20 torpedo hits, with 19 most commonly cited. I'm not sure offhand how many torpedo carrying Avengers there were.

True. From what I can find air groups from 5 separate carriers attacked this ship, with the single most effective attack being 9 avengers in a single attack scoring 3 hits after the Musashi had already been hit & slowed down considerably. I have no dea how many Avengers were in all the attacks, though [&:]


<edit> from reading the Musashi trom, "259 U.S. carrier aircraft during the day. MUSASHI sustains a total of 19 torpedo (10 port, 9 starboard) and 17 bomb hits, as well as 18 near misses." It is not certain if these 259 attacked the entire group, or just this one ship.
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RE: What was the most succesful aerial torpedo attack?

Post by spence »

A couple of other contenders are the 2 for 6 (TBFs) that hit HIJMS HIEI off Guadalacanal. Apparently one of those two put paid to all the rudder repairs that the crew had made after the surface battle and doomed the BB. Also CA Nachi collected 5 hits in a single attack in Manila Bay. She also had been slowed down previously by other planes. Not sure how many TBFs participated in the attack that scored 5 hits.

It should be noted that the very first torpedo hit that the Netties scored on the Prince of Wales completely crippled that ship knocking out all power to her AA and at least half her propulsion. Repulse dodged 19 torpedoes before one finally hit...the other fatal ones followed quickly after that.
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RE: What was the most succesful aerial torpedo attack?

Post by urtel »

ORIGINAL: Lecivius

The raid on force Z consisted of 86 aircraft that scored 9 hits.

at last 20 of those had bombs not torpedoes, which give 9 of ~60 hit target...
when you count distance planes fly, alerted ships at full speed on open sea i think this is still best torpedo attack on non stationary capital war ships of ww2...
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RE: What was the most succesful aerial torpedo attack?

Post by Lecivius »

ORIGINAL: urtel

ORIGINAL: Lecivius

The raid on force Z consisted of 86 aircraft that scored 9 hits.

at last 20 of those had bombs not torpedoes, which give 9 of ~60 hit target...
when you count distance planes fly, alerted ships at full speed on open sea i think this is still best torpedo attack on non stationary capital war ships of ww2...

I tend to agree, but there is always someone to teach you otherwise [;)]
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RE: What was the most succesful aerial torpedo attack?

Post by spence »

Although part of a general "Pigpile" one of the earlish attacks against Musashi scored 4 torpedo hits out of 6 attacking planes. One of the first by 9 a/c scored 3 torpedo hits. The section on Musashi at Combined Fleet describes its demise in some detail.
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RE: What was the most succesful aerial torpedo attack?

Post by Lecivius »

Yeah, reading that. That is where I came up with my 259 number. Reading through the TROM, that was one unlucky ship.
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RE: What was the most succesful aerial torpedo attack?

Post by Chickenboy »

ORIGINAL: Lecivius
I am trying to understand who was most effective generally.

In terms of numbers of aircraft hitting primary targets (note the plural), it would be hard to side against the Pearl Harbor raid. In terms of a ratio of hitting : employed aircraft, you would have to parse out the more granular data. Then the Mushashi attacks seem more meaningful, although these were against just one ship.

another contender:

In the Battle of Rennell Island, 16 IJNAF G3Ms from 701AG crippled Chicago with two hits. At night. At long range. Under very poor attack conditions. The next day, a mere 11 bombers from 751AG attacked the cruiser, then under tow, scoring 4 hits on the cruiser and one on a nearby destroyer (USS La Vallette). Through CAP and a stiff escort AAA defense. If you wanted to follow the brutal "efficiency" ratio in this case, that's 5/11.
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RE: What was the most succesful aerial torpedo attack?

Post by Jakerson »

Pearl Harbor propably but it wasent done just with torpedo bombers.

In pearl harbor USA lost 2400 sailors 5 battleships were sunk and 3 battleships were damaged also 3 cruisers and 3 destroyers were sunk and USA lost 400 - 500 airplanes.

I dont think there is many this good torpedo bomber attacks done in ww2 than pearl harbor as Japanese lost only 55 pilots and 29 planes doing it.
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RE: What was the most succesful aerial torpedo attack?

Post by castor troy »

not sure about the most effective in terms of hits/aircraft but when it comes down to damage done it got to be PH I guess
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RE: What was the most succesful aerial torpedo attack?

Post by Lecivius »

That's actually an excellent example, and one I did not think of.
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RE: What was the most succesful aerial torpedo attack?

Post by Chickenboy »

ORIGINAL: Jakerson

Pearl Harbor propably but it wasent done just with torpedo bombers.

Neither was Mushashi or Yamato.
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RE: What was the most succesful aerial torpedo attack?

Post by warspite1 »

ORIGINAL: Chickenboy
ORIGINAL: Jakerson

Pearl Harbor propably but it wasent done just with torpedo bombers.

Neither was Mushashi or Yamato.
warspite1

Neither was Taranto - although all the damage to the capital ships was inflicted by torpedoes rather than bombs.
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RE: What was the most succesful aerial torpedo attack?

Post by wdolson »

It appears the discussion is about real world torpedo attacks. My next question is what does "most successful" mean? And are we talking about an overall raid with multiple waves, or a single attack? Success could mean tactical results achieved from the attack, or it could mean overall strategic success of the overall operation that stemmed from the torpedo attack.

If you're looking at strategic successes, the attack on the Bismarck wasn't tactically spectacular, but the one hit jammed the rudder allowing the British surface fleet to catch up and pummel the ship.

Another strategic success was a single Beaufort attack on the Gneisenau when she was at Brest. The British heavily reconned the port and attempted to bomb the ships there, but torpedoes attacks were not possible because of the heavy torpedo netting around the ships and the shallow part of the harbor where they were kept. British recon showed the Gneisenau outside the torpedo nets one day. She was in the process of being moved and was parked for a short time at a spot that could be torpedoed. A strike of Beauforts was launched, but encountered heavy fighter defenses. One Beaufort got through and put a torpedo in the Gneisenau, but was shot down on the way out. The Gneisenau was in dry dock for some time after that. She had just come out when the raid destroyed the dock.

Tactically the sinking of the Musashi was fairly poor. At that point in the war the USN bomber pilots had poor strike discipline and the strike was poorly coordinated. In a target rich environment like that, the strike bombers should initially aim to disable as many ships as possible. After the first or second wave, the Musashi was obviously in trouble and should have been ignored in favor of other targets, but the bombers kept focusing on her. Additionally the dive bombers wasted their bombs on the battleships where they couldn't punch through the deck armor. They would have been better suited to attacking cruisers.

Six months later when the USN attacked the Yamato, there was much better strike coordination and discipline. Some dive bombers did drop on the Yamato, but their mission was flak suppression rather than doing serious damage. They dropped general purpose bombs intended to take out flak guns above the armor and they were very effective. Fighters also went in ahead of the torpedo bombers with rockets to suppress flak. In that attack the torpedo bombers all aimed for one side of the ship which sank the ship a lot faster than the attacks on the Musashi which scored hits on both sides and effectively did counter flooding for the damage control crews.

The attacks on the Center Force at Leyte was only the second strike on major warships the USN had done since 1942. The crews had mostly forgotten what training they did have for that type of strike and discipline was poor. I believe the Intrepid's VTs did best in that strike because they had been drilled on strike tactics better than other units. However, they attacked Musashi too.

The 1945 USN strikes on the Japanese fleet in the home islands was very effective. I don't know how many torpedo planes were used there, but the strikes sank most of the surviving IJN fleet. They didn't have the fuel to sortie at that point, but it eliminated the fleet in being. You are guaranteed a sunk battleship won't be giving you any problems.

Depending on the criteria, you can disect historical torpedo attacks and come to all sorts of conclusions.

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RE: What was the most succesful aerial torpedo attack?

Post by spence »

In that attack the torpedo bombers all aimed for one side of the ship which sank the ship a lot faster than the attacks on the Musashi which scored hits on both sides and effectively did counter flooding for the damage control crews.

Those attacks were conducted according to accepted torpedo attack doctrine, "an anvil attack", whereby torpedo bombers drop at some angle (45 degrees?) off of both bows so that whichever way the target turns it exposes its beam to torpedoes. Under those circumstances hits on both sides seem much more likely since the decision to turn one way or the other is up to ship's conning officer, not the bombers.

The flak suppression against Yamato was however a new wrinkle. According to the damage control assistant one of the foibles of the Yamato's construction was the over-concentration of AAA around the center of the superstructure. According to the same source the strafing (rocket firing) fighters slaughtered the AAA crews to the extent that rivers of blood were seen to cascade down from deck to deck from the AAA gun tubs.
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RE: What was the most succesful aerial torpedo attack?

Post by wdolson »

I can't find the reference now, but I saw somewhere that the instructions to the Avenger crews was to launch all torpedoes on the Yamato so they hit the port side. A couple of hit starboard, but most hit on the port side. From the account I read, it was noted by the Avenger pilots that it was a break from normal doctrine. The strike planners probably figured there were going to be enough TBMs that getting at least a few hits on the first wave was almost certain, and the abuse the Musashi took before sinking, they probably realized hits on both sides caused counter flooding which delayed her sinking.

The USN also had a perfect setup, no air cover, attacking a small force with one high value target, one CL, and a few DDs, with an overwhelming aerial force. They also had time for a more conventional follow up strike if the initial strike tactics didn't work.

Anvil tactics are effective to get a hit on a fast maneuvering ship, but once the ship is crippled, if there are no other high value targets, it would be more effective to concentrate on one side to try and get the ship to capsize, though I have never read that was anybody's doctrine.

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RE: What was the most succesful aerial torpedo attack?

Post by crsutton »

Getting a bit off topic and out of theater but I am surprised that the Italian human torpedo attack by three crews in Alexandria harbor in 1941 is not mentioned in either of these two threads. I suppose it can be argued that they were not exactly torpedoes but mini subs with mines but for strategic value this has to be rated as one of the most successful torpedo attacks of the war. It also put to rest that the Italians were incompetent and less dedicated warriors as this attack was very well planned and took some brass balls for the six men involved to pull off.

It can be argued that the results of this raid were just as critical as the British attack on Taranto.

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