Friday 2010-10-29 Dev. update and Discussion

[Insuber]

Originally Posted by Desgobbi

Bullet has mass and it must affect to a plan when it has been shot. So called "law of momentum conservation".
If a plan start to shoot, then the plan must shake, then the bullet of the next should follow other trajectory.

I can not find any shake in the video and the trajectories of bullets are all the same.

Of course I don't mind that.

The Hurricane was known to be a very stable fire platform. Moreover the momentum of a 4000 kg plane at 400 km/h is 3 orders of magnitude bigger than that of eight 10g bullet at 2500 km/h ... if you see what I mean.

[Desgobbi]

Originally Posted by Insuber

The Hurricane was known to be a very stable fire platform. Moreover the momentum of a 4000 kg plane at 400 km/h is 3 orders of magnitude bigger than that of eight 10g bullet at 2500 km/h ... if you see what I mean.

Hurricane momentum= 3000Kg*300KM/h
Hispano Bullet momentum = (0.13Kg~0.168Kg)* (3000Km/h, about 2800ft/s)

ratio of mumentum = 1 : 2300

Still can make enough shake.... Even a tiny vibrator in my iPhone can make me shake.

Of course, Oleg just played at easy mode in the video and there is no shake..

Im sure Philip was only having a laugh, no harm done or disrespect shown IMO.

[Insuber]

Originally Posted by Desgobbi

Hurricane momentum= 3000Kg*300KM/h
Hispano Bullet momentum = (0.13Kg~0.168Kg)* (3000Km/h, about 2800ft/s)

ratio of mumentum = 1 : 2300

Still can make enough shake.... Even a tiny vibrator in my iPhone can make me shake.

Of course, Oleg just played at easy mode in the video and there is no shake..

1:2300 = 3 orders of magnitude

BTW if my memory is good enough, during the BoB the Hurricanes didn't have Hispanos, but 8 Brownings .303, and the muzzle speed of the 11 g bullet was some 2500 km/h, and the weight of the Hurricane was 3950 kg, and when attacking bombers I'd fly a little faster than 300 km/h ... details of course my friend

[Jaws2002]

Check this video. Belgian FN made .50cal gunpods.

http://www.fnhusa.com/mil/video/video.asp

Click on the "PODS" video. Watch specially the first part where the pods are used on fixed wing aircraft.
We know SOW video was recorded on easy setings. If is anything like Il-2 easy setings, this means without much vibration and most likely little to no bulet drop. I'd say SOW video looks mighty close.

[louisv]

So kinetic energy of the bullet: one half of m (mass) times v (speed) squared...

v squared is 3000 km/h squared and that is 9,000,000 and actually all this should be calculated in meters and seconds...

Which is relevant momemtum or kinetic energy ?

[Insuber]

Originally Posted by louisv

So kinetic energy of the bullet: one half of m (mass) times v (speed) squared...

v squared is 3000 km/h squared and that is 9,000,000 and actually all this should be calculated in meters and seconds...

Which is relevant momemtum or kinetic energy ?

Momentum is simply velocity x mass ... and the ratio is adimensional ... that's my last post on the subject, I don't want to attract here the UBI forum's masters of physics ...

[Desgobbi]

Originally Posted by Insuber

1:2300 = 3 orders of magnitude

BTW if my memory is good enough, during the BoB the Hurricanes didn't have Hispanos, but 8 Brownings .303, and the muzzle speed of the 11 g bullet was some 2500 km/h, and the weight of the Hurricane was 3950 kg, and when attacking bombers I'd fly a little faster than 300 km/h ... details of course my friend

It's been a long time. Hope to see you this post someday, as I did.
We've got to consider the explosion which occurs whenever every bullet gets fired. Of course momentum things still working.

Trajectories of bullet look not good and seem to be laser beam.