Author Topic: Hub cannon (Read 995 times)

MiloMorai · « **Reply #15 on:** January 12, 2006, 09:58:45 AM »

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Originally posted by Krusty
What do you mean? I've never seen anything to indicate this is so. The hub cannon wouldn't need to extend into the cockpit as there was plenty of room, and I believe there was a firewall between the two.

Krusty, that bulge you see when looking down toward the rudder pedals covers the cannon breech.

Charge · « **Reply #16 on:** January 12, 2006, 10:43:21 AM »

I think that even the 151/20 leaves a bit short of the propellor in 109 so a barrel explosion would always happen inside the engine compartment more of less destroying the engine. Any breech explosion in 109 would happen between the feet of the pilot.

I think that a barrel explosion in P39 would probably make the a/c lose it s propellor. Breech explosion would not at least blow the engine but the forward compartment is full of .50 and 20mm or 37 mm ammo.

-C+

PS. IIRC A Finnish Morane Saulnier was damaged due to barrel explosion of its Hispano. The a/c RTBd successfully although it lost its oil and the engine was a wreck although it brought the a/c back.

Tony Williams · « **Reply #17 on:** January 12, 2006, 02:09:38 PM »

Quote

Originally posted by Charge
I think that even the 151/20 leaves a bit short of the propellor in 109 so a barrel explosion would always happen inside the engine compartment more of less destroying the engine.

Good point: especially with the MK 108 which had a very short barrel.

In contrast, the very long barrels of the MGC-30/L and the Hispano must have reached (or got very close to) the prop.

Tony Williams: Military gun and ammunition website and discussion forum

Lusche · « **Reply #18 on:** January 12, 2006, 03:48:19 PM »

Quote

Originally posted by MiloMorai
Krusty, that bulge you see when looking down toward the rudder pedals

Debonair · « **Reply #19 on:** January 12, 2006, 05:34:45 PM »

Iirc, from looking at P-39 & P-400 photos, the Hissoka sticks out further than the 37mm...whats is an MGC-30/L?

Tony Williams · « **Reply #20 on:** January 13, 2006, 08:22:19 PM »

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Originally posted by Debonair
whats is an MGC-30/L?

A very powerful, high-velocity German 20mm aircraft gun developed in the 1930s, intended for engine-mounting in fighters. Only one He 112 prototype was fitted with one and tried it in the SCW. The experiment was not judged a success, it was too big, heavy and slow-firing. The barrel alone was 1.8m long.

Tony Williams: Military gun and ammunition website and discussion forum