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RE: Midway Inquest?

 
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RE: Midway Inquest? - 8/23/2007 11:00:44 AM   
Local Yokel


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quote:

ORIGINAL: bradfordkay

My understanding from Shattered Sword is that it was the lack of enough torpedo carts that caused the situation. When the order was given to arm the Kates for land attack, all the torpedoes had to be removed. There weren't enough carts to stow them all below, so some were set aside to be loaded onto the carts and sent to the magazine later.

My belief is that the bombs were all on carts, probably for the reasons Chez has mentioned, and because there were enough bomb carts. The quote from Shattered Sword (p.250): "This appalling total of nearly 80,000 pounds of explosives lay scattered everywhere, on aircraft, on bomb carts, or simply shoved against the hanger bulkheads to get them out of the way." Parshall and Tully don't say exactly what was where (they did mention holding racks next to the magazine elevator).

On p.157 they mention that the bomb handlers in the magazine had "let it be known that they had their hands full just getting the bombs out of storage and not to send anything down to them yet." I would assume that as the bomb handlers got things going, later they were probably taking torpedoes down but at the beginning the torpedoes had to go into temporary holding racks. So they weren't just rolling around, but they were in the blast zone when the american bombs exploded.

Apparently there were only six torpedo carts (at least on Akagi), so most of the plane crews had to wait until a cart was available to unload their bombers. Since the torpedoes couldn't go below, they went into the holding racks so that the cart could be used to unload another Kate.


The 80,000 pounds is Lt Kunisada's estimate of the quantity of explosives in Kaga's hangars when she was struck. His estimate involves the inclusion of some 28 800 Kg bombs and 40 250 Kg bombs. What were these bombs doing in the hangar? The 250 Kg bomb is what you would expect to be loaded onto Kaga's Type 99 bombers. But they weren't slated for inclusion in the strike against the US carriers, so why would bombs for them have been brought up from the magazines? To have done so would have been to anticipate the arming requirements of the third deckload spot of the day for Akagi and Kaga.

The magazine handlers' preoccupation referred to on p.157 was with sending up the Type 80 land bombs. This was at about 0720-0800: the period commencing with Nagumo's order for Type 97's in the 2nd attack wave to substitute bombs in place of torpedoes for a second attack on Midway. Accordingly the armourers stowed in the racks those torpedoes that were actually taken off the Type 97's in CarDiv 1 hangars. When, at about 0800, Nagumo ordered these aircraft to be once again re-armed with torpedoes for the anti-ship strike, they were probably still sitting ready and waiting in those racks. There was no need to send up further torpedoes from the magazines; only a need to return to them the unwanted land bombs. If these were the 800 Kg bombs on Kaga to which Kunisada referred, my question remains: why had they not been sent back down to the magazines?

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RE: Midway Inquest? - 8/23/2007 2:16:53 PM   
Apollo11


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Hi all,

This thing come to my mind long time ago (even before I got my "Shattered Sword" book...


The Japanese Kido Butai (KB) kept sailing SE (South East) towards the Midway whole time during battle.


What if they reversed course at the time they positively knew that there are some enemy CVs sighted (at first those were not recognized as USN CVs but afterwards they were recognized as CVs)?

Thus KB would be turning W (West) or SW (South West) in order to _INCREASE_ the range between KB and sighted enemy CVs (and Midway air base as well) instead of _DECREASE_ as they historically did!


Would US aircraft (both from Midway and from CVs) miss them then (as far as I know no land based bomber was "shadowing" KB and every aircraft coming from land had to "discover" KB anew - same as USN aircraft had to "discover" KB because of lack of communication from all US assets used)?

Also would KB still be able to receive 1st strike returning from Midway if course was changed?


Opinions gentleman?


Leo "Apollo11"

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Post #: 32
RE: Midway Inquest? - 8/23/2007 4:19:43 PM   
Local Yokel


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Hi Leo.

Almost exactly the same thoughts occurred to me when reading some of the exchanges that preceded publication of Shattered Sword. Any added distance Nagumo placed between himself and TF's 16/17 had to be to his benefit insofar as it played to the range advantage of his aircraft. Theoretically he might ultimately have placed himself outside the strike range of the short-legged TBD's.

However, there were two major constraints on Nagumo's available choices.

First, once Tomonaga's Midway strike was launched, KB was presumably committed to the Japanese equivalent of a 'Point Option' course in order to r/v with the returning strike.

Second, for multi-carrier launches and recoveries KB would turn into the wind. That's why it was, broadly speaking, on an easterly course from 0832 to 0917 whilst it recovered Tomonaga's strike.

That left Nagumo with a window of about an hour in which he could run in a westerly direction before the US carrier dive bombers arrived in the vicinity. Assuming, of course, (BIG assumption) that the US airgroups followed the same courses as they took on the day.

My take is that he was unlikely to have evaded all US carrier air by turning west. In particular, a westerly course might well have brought the Enterprise SBD's into contact sooner than was actually the case, given that they approached from the SW. On the other hand the time and place of such interceptions might have left the CAP in a better position to deal with the various threats by which it was confronted.

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RE: Midway Inquest? - 8/23/2007 5:37:59 PM   
Apollo11


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Hi all,

quote:

ORIGINAL: Local Yokel

Almost exactly the same thoughts occurred to me when reading some of the exchanges that preceded publication of Shattered Sword. Any added distance Nagumo placed between himself and TF's 16/17 had to be to his benefit insofar as it played to the range advantage of his aircraft. Theoretically he might ultimately have placed himself outside the strike range of the short-legged TBD's.

However, there were two major constraints on Nagumo's available choices.

First, once Tomonaga's Midway strike was launched, KB was presumably committed to the Japanese equivalent of a 'Point Option' course in order to r/v with the returning strike.

Second, for multi-carrier launches and recoveries KB would turn into the wind. That's why it was, broadly speaking, on an easterly course from 0832 to 0917 whilst it recovered Tomonaga's strike.

That left Nagumo with a window of about an hour in which he could run in a westerly direction before the US carrier dive bombers arrived in the vicinity. Assuming, of course, (BIG assumption) that the US airgroups followed the same courses as they took on the day.

My take is that he was unlikely to have evaded all US carrier air by turning west. In particular, a westerly course might well have brought the Enterprise SBD's into contact sooner than was actually the case, given that they approached from the SW. On the other hand the time and place of such interceptions might have left the CAP in a better position to deal with the various threats by which it was confronted.


Interesting thoughts John!

Ahhh... lots and lots of "what if"... but thet's the beauty of it...


Leo "Apollo11"


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Post #: 34
RE: Midway Inquest? - 8/23/2007 5:39:21 PM   
Mike Scholl

 

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What I've always felt Nagumo's actions at Midway proved was that in Confused, High-Pressure, Situations..., and with Limited Intellegence (and much of that in error); people tend to make a lot more "mistakes" than they do looking back with 65 years of hindsight.

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RE: Midway Inquest? - 8/23/2007 8:41:11 PM   
ChezDaJez


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quote:

What I've always felt Nagumo's actions at Midway proved was that in Confused, High-Pressure, Situations..., and with Limited Intellegence (and much of that in error); people tend to make a lot more "mistakes" than they do looking back with 65 years of hindsight.


Well stated.

Chez

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RE: Midway Inquest? - 8/23/2007 9:38:42 PM   
Big B

 

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quote:

ORIGINAL: Local Yokel

{snip}...

Almost exactly the same thoughts occurred to me when reading some of the exchanges that preceded publication of Shattered Sword. Any added distance Nagumo placed between himself and TF's 16/17 had to be to his benefit insofar as it played to the range advantage of his aircraft.

...

Perhaps a small point, but it seems to me that, in a way, this also may be a bit of hindsight.

Could Nagumo really know he had a range advantage in aircraft at that time? I'm not so sure.
Navy Wildcat fighters already had drop tanks delivered to the VF squadrons on the carriers off Midway (though they did not familiarize with them yet and hence did not use them during the battle).
And did the Japanese and Americans know with any degree of certainty the true performance capabilities of their adversaries' aircraft at that time? I really don't think so.

So it may be that turning away from Midway may not have accrued any advantage in his mind.

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RE: Midway Inquest? - 8/24/2007 12:12:29 AM   
spence

 

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According to Shattered Sword Nagumo headed generally NE to close with the enemy and attack as more or less a reflection of his training. The position of the Americans given by the scout plane was somewhat suspect in that according to the search plan that plane should never have been in the location reported (Tone 4 evidently did vary from the originally planned track. Technically the Americans should have been located by Chikuma #5 but that plane evidently conducted its search from relatively high altitude and missed them under the clouds. Nagumo apparently did not trust the position sufficiently to try to find the "sweet spot" range where he could attack and the Americans couldn't. But basically his instinct was to attack and to him, a "cruiser man" IIRC, that meant getting in close. Apparently he was not advised otherwise by the Staff of 1st Air Fleet.

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Post #: 38
RE: Midway Inquest? - 8/24/2007 1:55:41 AM   
Joe D.


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quote:

ORIGINAL: spence
IIRC from Shattered Sword, "control" of the CAP resided with the officer in charge of all flight deck operations on each individual carrier. Since this officer had no means to actually communicate with CAP a/c once they were in the air and was often to busy to do so anyways his "control" basically boiled down to ordering the launching or authorizing the recovery of CAP a/c.

I do not have a particularly good feel for how this officer (I can't remember the IJN title - think it begins with H though) fit into the chain of command on the carrier.


Transliterates to hikocho or air officer, who was in charge of "orchestrating" the flight and hangar decks as well as the CAP when it was up.

Apparently hikocho is a staff officer's position, i.e., he's not the CAG.


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Post #: 39
RE: Midway Inquest? - 8/24/2007 5:12:04 AM   
spence

 

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quote:

First, once Tomonaga's Midway strike was launched, KB was presumably committed to the Japanese equivalent of a 'Point Option' course in order to r/v with the returning strike.

Second, for multi-carrier launches and recoveries KB would turn into the wind. That's why it was, broadly speaking, on an easterly course from 0832 to 0917 whilst it recovered Tomonaga's strike


The first point is definitely the case. I've forgotten for how long KB would continue towards Midway but Tomonaga was told to basically head for a rendezvous at a certain DR position that assumed a run towards Midway for a certain time then a turn to the NE.

In the second case the wind was from the ESE or SE that morning which meant that a westerly course would make little ground due to the need to turn into the wind for launch and recovery of CAP and the returning strike.

If a radical course change was ordered for some reason a DD was to be detached from KB to proceed to the original "Point Option" and direct the strike back to the carriers.



< Message edited by spence -- 8/24/2007 5:18:24 AM >

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RE: Midway Inquest? - 8/24/2007 6:31:02 PM   
Joe D.


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quote:

ORIGINAL: spence
... Nagumo apparently did not trust the position sufficiently to try to find the "sweet spot" range where he could attack and the Americans couldn't. But basically his instinct was to attack and to him, a "cruiser man" IIRC, that meant getting in close ...


Re Shattered Sword: Nagumo -- who was origninally trained in torpedoes -- was very "old navy" and was apparently uncomfortable wielding newer weapons, such as air power.


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