RE: U.S.S. Arizona (Full Version)

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RevRick -> RE: U.S.S. Arizona (7/9/2009 2:25:06 AM)

I know. The pictures I have seen give me goose bumps. In some book I have, which I may have just unpacked for the first time in four years, there is a sequence in which a very small speck seems to be descending from upper left toward the foredeck of the Arizona. There are two frames which show the ship before the explosion, and the speck seems to be falling. The third frame shows the foredeck erupting, and the fourth shows the full explosion. I'd love to find that shot and scan it.



Aurelian -> RE: U.S.S. Arizona (7/9/2009 2:36:45 AM)

http://archives.starbulletin.com/2006/12/07/news/story04.html




TOMLABEL -> RE: U.S.S. Arizona (7/9/2009 3:59:09 AM)

If you slow down this vid, in one frame you can see the bomb falling towards the deck. You can also see the OK starting her roll as well as the WeeVee.

http://www.youtube.com/watch?v=2NaaN0wQtbg&NR=1



Fallschirmjager -> RE: U.S.S. Arizona (7/9/2009 4:02:14 AM)

So what is the generaly accepted theory of how the bomb managed to detonate the magazine? There is probably no way that the bomb penetrated the armor. Were doors left open? Was powder or shells not stored properly?



TOMLABEL -> RE: U.S.S. Arizona (7/9/2009 4:24:08 AM)

More from the artist in the original post.

Arizona.


[image]local://upfiles/19527/25F332E6556040529A93D53801DEA10F.jpg[/image]



TOMLABEL -> RE: U.S.S. Arizona (7/9/2009 4:24:59 AM)

December 7th, 1941



[image]local://upfiles/19527/8F611FD553884DE4AB09E9C278DCDF4A.jpg[/image]



TOMLABEL -> RE: U.S.S. Arizona (7/9/2009 4:32:11 AM)


quote:

ORIGINAL: Fallschirmjager

So what is the generaly accepted theory of how the bomb managed to detonate the magazine? There is probably no way that the bomb penetrated the armor. Were doors left open? Was powder or shells not stored properly?


Well the general knowledge is that it was a modified armor piercing projectile as opposed to an AP bomb.



Fallschirmjager -> RE: U.S.S. Arizona (7/9/2009 4:49:35 AM)


quote:

ORIGINAL: TOMLABEL


quote:

ORIGINAL: Fallschirmjager

So what is the generaly accepted theory of how the bomb managed to detonate the magazine? There is probably no way that the bomb penetrated the armor. Were doors left open? Was powder or shells not stored properly?


Well the general knowledge is that it was a modified armor piercing projectile as opposed to an AP bomb.


Yeah I know it was an modified 800 kg naval shell turned into an aircraft bomb. But did not the Navy in 1944 find in their report that it did not penetrate the magazine?



TOMLABEL -> RE: U.S.S. Arizona (7/9/2009 5:09:15 AM)


quote:

ORIGINAL: Fallschirmjager


quote:

ORIGINAL: TOMLABEL


quote:

ORIGINAL: Fallschirmjager

So what is the generaly accepted theory of how the bomb managed to detonate the magazine? There is probably no way that the bomb penetrated the armor. Were doors left open? Was powder or shells not stored properly?


Well the general knowledge is that it was a modified armor piercing projectile as opposed to an AP bomb.


Yeah I know it was an modified 800 kg naval shell turned into an aircraft bomb. But did not the Navy in 1944 find in their report that it did not penetrate the magazine?


You tell me. What Navy report and please quote their findings. [;)]



Fallschirmjager -> RE: U.S.S. Arizona (7/9/2009 5:27:53 AM)

http://www.history.navy.mil/photos/events/wwii-pac/pearlhbr/ph-az.htm

I will try and track down that report. In the meantime I have to do research that I actualy get paid for :(



Nikademus -> RE: U.S.S. Arizona (7/9/2009 2:52:40 PM)


quote:

ORIGINAL: Fallschirmjager


[Yeah I know it was an modified 800 kg naval shell turned into an aircraft bomb. But did not the Navy in 1944 find in their report that it did not penetrate the magazine?


The 'bomb' was rated close to being able to penetrate Arizona's deck armor. There's wiggle room IMO. The item however of central focus in the official investigation IIRC via 'Battleship Arizona' was the black powder magazine located next to the main armament powder mags. The issue wasn't so much penetration as explosive content of the bomb which was only 4% of the bomb's weight and it was thought highly unlikely that such a small amount of explosive might have detonated the fairly 'stable' white powder used for the 14inch guns.

However that was not the case with the black powder used for the ship's catapult. It was highly explosive. The key point focused on was the 7 seconds that passed between the ship being hit (and a small internal fire noted) and the magazine explosion. It was felt that even if the bomb did not penetrate, that being a Sunday, and being at peacetime, that the hatch to the powder mag was possibly open at the time. The "interval" between the hit and the explosion might be explained thus by fire moving from the bomb impact, through the hatch and into the black powder mag. The BP mag goes off...which in turn touched off the main gun powder mags.

Thats I believe the most prevalent theory. Of course the sheer level of destruction destroyed most of the physical evidence so we'll never be 100% certain.





Bearcat2 -> RE: U.S.S. Arizona (7/9/2009 4:19:42 PM)

The after action report for those who might not have read it before:
http://www.history.navy.mil/docs/wwii/pearl/ph21.htm



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