about the BoB's Bf110 20mm Canons

[koivis]

This is what I love about this forum, one can ask almost any question like this and it always gets answered!

About the shells hitting the tube walls, isn't that pretty easily calculated? I could do the math, but, as always, there is always someone who have thought about this before
There you go, post no 8:

http://warbirdsforum.com/showthread.php?t=1420

but like always with physics, it's always more complicated than this... But theoretically, you'd need to pull about 80 G to make it hit the wall.

By the way, if in any post or discussion related to guns, especially aircraft guns you see the name "Tony Williams", he knows pretty much everything about the subject.

[Igo kyu]

Originally Posted by koivis

<a link to some fascinating info.>

Thanks very much for posting that.

[Skoshi Tiger]

Originally Posted by koivis

This is what I love about this forum, one can ask almost any question like this and it always gets answered!

About the shells hitting the tube walls, isn't that pretty easily calculated? I could do the math, but, as always, there is always someone who have thought about this before
There you go, post no 8:

http://warbirdsforum.com/showthread.php?t=1420

but like always with physics, it's always more complicated than this... But theoretically, you'd need to pull about 80 G to make it hit the wall.

By the way, if in any post or discussion related to guns, especially aircraft guns you see the name "Tony Williams", he knows pretty much everything about the subject.

Also the angle of incidence that the round would stike at would be extremely small causing it to ricochet down the tube.

How did the German rounds arm themselves? Was there a delay or did it occur as soon as the propellant charge went off?

Cheers

[winny]

BoB era German cannon rounds had no delay on the fuse so would explode on impact. They introduced delayed fuses in '41.

[robtek]

I believe you misunderstood, winnie.
The fuses were save until a certain time after firing the round,
So if there was something in the way in the first few yards of flight the round wouldn't explode.
The MG FF used the "Bodenzünder (Bd.Z.) 1511, 1512 and 1513.

Funktion: Centrifugal arming using steel balls that move outward. When air resistance slows down projectile spin, balls move back toward center
and cause a spring to force firing pin into detonator for self-destruct

[winny]

Originally Posted by robtek

I believe you misunderstood, winnie.
The fuses were save until a certain time after firing the round,
So if there was something in the way in the first few yards of flight the round wouldn't explode.

You're right, I should have said fast acting fuse.. (original M-Geschoss, the delayed fuse was fitted '41)

[Rodolphe]

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[TinyTim]

Originally Posted by KnightFandragon

Will bombers be able to reload in flight period in SoW? Its kinda annoying now to be flying in a bomber, run out of ammo, look around, see Ammo boxes sitting around and cant use them. Im sure crews went up with extra ammo right?

If you look carefully, ammo drums are dissapearing one by one as you shoot. When you run out of ammo, there are no more spare drums around in your gunner position!

There is a chance though that the drums you saw belonged to another gunner, you can see spare drums of waist gunners from the ventral gunner hatch in He-111 for example.