Another weird question I thought up :D

[Spikes]

Actually they were removed because you can't shoot down missiles with a tail gun, and the wind behind the bullet actually increases its range relative to the aircraft- a tail gun reaches farther than a nose gun.

I recall reading somewhere that they were removed because, since the speed was so great, the tail gun was ineffective against fighters or something...

[1701E]

When you measure fps you taking into account the recoil of the rifle. Providing at least you use the same method to hold the rifle between firings. So you dont need to add or subtract speed for recoil effects. Even so its usually less than 1 fps which is really unmeasurable in most systems.Remember speed is relative.....your doing hundreds of mph sitting in your chair right now. If you sit at a bench and fire 2300 fps youll get 2300 fps moving backwards at the same rate. In fact most recoil takes place after the bullet has left the barrel leaving no recoil in the bullet speed equation. I fire a 300 Ultra Mag that kicks a 200 grain bullet 3000 fps and doesnt move a millimeter. No recoil....you can hold your finger on the trigger and fire it without touching the rest of the gun.

Strip

Ah I don't know much about guns, so I didn't know it took into effect recoil, or much it caused, and all that.  Was a theory from a tired person.

[Strip]

I recall reading somewhere that they were removed because, since the speed was so great, the tail gun was ineffective against fighters or something...

Range......missiles could be fired way outside a tail guns range or even its cone of fire. The tail gun died when the missile was born...

Strip

[CAP1]

The weird things I think of when I'm bored. This poped into my head one day while thinking how fast a .50 cal would leave the barrel of a gun on a P-51 flying 350 mph. (That isn't the question    )

Question: Let's say a bullet leave the barrel of the rifle at 2,300 ft/s. Now, everyone fires their rifles at a standing, crouch, or prone position, so they are not moving in any direction. Let's take that same rifle (fires at 2,300 ft/s), and put it on a rig that can move at 2,300 ft/s, but in the opposite direction that the barrel faces. What would happen to the bullet if you fired it at 2,300 ft/s one way (let's make it right --> ), and just as you fired the rifle was moving in the opposite direction at 2,300 ft/s (which is left <-- ).

Would the bullet stay right at the spot you fired? Would it have no effect on the bullet whatsoever? Would the bullet travel at a slower speed?

<--Gun(2,300 ft/s)      Bullet(2,300ft/s)-->

you oughtta put this one on mythbusters request site. 

[Yossarian]

This is incorrect if I am reading it right.......speed is relative.

From the perspective of the gun, the bullet would move at 2,300 fps and in essesence stop moving in relation to its surroundings.

From the perspective of the bullet the gun would move away at 2,300 and  the bullet itself would be at rest in its surroundings.

I agree with the last one.....

I edited my post to clarify what I meant a bit better, but I still think I'm correct.

[oakranger]

you oughtta put this one on mythbusters request site. 

lol, yes he should

[Strip]

I edited my post to clarify what I meant a bit better, but I still think I'm correct.

Sorry but it simply doesnt work that way....you prove that by your third line.

If the stationary observer sees the bullet as stationary that means its relative velocity is zero. If the gun is moving 2300 fps from the observer and the bullet is stationary the combined velocity is 2300 fps (not 4600). Its a simple equation.....bullet velocity+intial velocity.


Stationary View

Bullet Velocity        2300
Intial Velocity       -2300   (negative means backwards)
Total Velocity            0      ( This is relative to stationary observer)


Gun View

Your velocity             0           (Speed is relative)
Bullet velocity     2300           (Relative to gun)
Total velocity      2300

Hope this explains it but under no circumstance can you get 4600fps with gun moving backwards. Fowards on the otherhand....

Strip