Aircraft Carrier's Aircraft Ordnance Magazine Loads

[Nikademus]

The Japanese replaced the Type 99 with the Type 2 No.80 Mk 5 Model 1 in 1942
It was also converted from 16.1in shells.

[Damien Thorn]

The Japanese replaced the Type 99 with the Type 2 No.80 Mk 5 Model 1 in 1942
It was also converted from 16.1in shells.

"The Type 2 No.80 Mk 5 Model 1". Man, how much more detailed of a name do then need? Sheesh.

[LTCMTS]

I see the reference in Campbell. I wonder what the production rate was. The 41cm AP shell was 1020kg, the bomb 811kg. Removing the cap and windscreen from the shell shouldn't add up to 209kg, so there must have been some milling done on the shell. Another interesting note is the Type 3 No.150 Mk.5, in experimental production in 1945 at 1498.6kg, possibly a modified 46cm AP shell. 1942 also saw the IIS of the Type 2 No.50 Mod.1 500kg (491 actual) SAP bomb with 80mm penetration from an unspecified height.

[Nikademus]

Dont have the reference with me here at work but i recall the text saying that the nose piece was slightly less thick than the Type 99 and that it was in production until the end of the war.

I'd not expect it to be as proliferent as GP bombs (same as with the USN)

[Capt. Harlock]

My compliments to the remarkable research done in this thread. However, it seems to me that keeping track of each type of bomb will get very messy even for modern PC platforms. Suppose each carrier is given three categories: GP ordance, AP bombs, and torpedoes. Each carrier could have a number of points, as surface ships in Pacific War have ammo points, which would be used by each type of strike. (For instance, a strike at a TF from a Yorktown-class CV would use 2 AP bomb points and 1 torpedo point, since there were about twice as many dive-bombers as torpedo bombers on board, at least in the critical early days of the war.)

If even this proves too complex, Gary Grigsby used a percentage check for ammo depletion in "North Atlantic '86". Each time a strike was lauched, there could be a random number check for running out of ordnance, possibly increasing as the number of days at sea for the Cv increases.

[markbroughton]

Pry,

That was a really interesting post, can I ask you were you got the information about the magazine loads? Most texts about the subject tend to overlook this aspect. I was really surprised about the number of Torpedo`s in particular, but make sense when think about the size of the weapons.


Regards Mark

[LTCMTS]

Off hand, I know Friedman's "Illustrated Design History of the U.S. Aircraft Carrier" has an appendix which discusses avord loads for US CVs and CVLs.

[LTCMTS]

Remember that avord is stowed in protected magazines for most CVs and CVLs, though I believe the STS protection in the Independence CVLs was around the warheads of the torpedo racks (which is why Princeton went up big time when the fires reached her magazines). Given the need for volume for the hanger, the elevator wells, crew space, machinery, gun ammo, spare parts and even dismantled a/c, there was a limited space for avord.