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Concorde Vs Bullet
A friend and I were having a debate on a rumour that we once heard.
The rumour went along the lines, If concorde (or and other supersonic aircraft for that matter) was fitted with guns then the bullets would not be able to leave the muzzle or it would shoot itself if it fired them while cruising. Assuming that the bullets velocity and the speed of the aircraft are the same, what are your thoughts on what would happen? |
#2
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Concorde Vs Bullet
Next time you're on a plane, toss a bag of peanuts to someone in front of
you. Never knew you could throw a bag of peanuts 500MPH, did you? "rick_little99" wrote in message oups.com... A friend and I were having a debate on a rumour that we once heard. The rumour went along the lines, If concorde (or and other supersonic aircraft for that matter) was fitted with guns then the bullets would not be able to leave the muzzle or it would shoot itself if it fired them while cruising. Assuming that the bullets velocity and the speed of the aircraft are the same, what are your thoughts on what would happen? |
#3
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Concorde Vs Bullet
Next time you're on a plane, toss a bag of peanuts to someone in front of
you. I assume you mean in an open cockpit plane against the wind. Bullets don't get to travel in a vessel like you and I do. -Robert |
#4
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Concorde Vs Bullet
From: Robert M. Gary - view profile Date: Fri, Feb 17 2006 10:43 am Email: "Robert M. Gary" Groups: rec.aviation.piloting Not yet ratedRating: show options Reply | Reply to Author | Forward | Print | Individual Message | Show original | Report Abuse | Find messages by this author Next time you're on a plane, toss a bag of peanuts to someone in front of you. I assume you mean in an open cockpit plane against the wind. Bullets don't get to travel in a vessel like you and I do. -Robert They do if you are a terrorist...... Ben |
#5
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Concorde Vs Bullet
rick_little99 wrote:
A friend and I were having a debate on a rumour that we once heard. The rumour went along the lines, If concorde (or and other supersonic aircraft for that matter) was fitted with guns then the bullets would not be able to leave the muzzle or it would shoot itself if it fired them while cruising. Assuming that the bullets velocity and the speed of the aircraft are the same, what are your thoughts on what would happen? Only if it's on a conveyor belt also going the speed of sound in the opposite direction. ;^) |
#6
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Concorde Vs Bullet
OK, i think you are looking at the problem a little too simply. It is
not just a relative motion issue. Air travelling towards the aircraft would not be able to enter the muzzle (as it has nowhere to go). The bullet would then travel down the muzzle at the speed of sound say (I know it has to accelerate but lets just say it travels at a constant speed) relative to the muzzle (i.e. the bullet would be travelling its velocity plus that of concorde). Upon reaching the end of the muzzle it would hit a wall of air travelling at the same speed as it so would effectively instantaneously slow down to the speed of concorde. It then could go one of 3 ways, it could bobble about in the space between the end of the muzzle and the air around (the boundary layer), fly back past the aircraft and possibly hitting the aircraft on the way past or it could go bounce back down the muzzle. |
#7
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Concorde Vs Bullet
NOt quite.
The bullet would not 'instantaneously' slow down. It has a given amount of energy and is capable of supersonic speeds. The question would be how long would it take to slow down to the Concorde's speed. If you guess a second, and the bullet was fired along the flight path of the airplane, it would have fallen 16 feet be the time it was traveling the same speed, and another number of feet before it slowed down enough for the airplane to catch up to it. During WW2 some airplanes were said to have hit themselves with their own bullets, but I think you can work out how that might happen with an airplane diving under its own line of fire. Finally, if you think you knew the answer, why did you post the question? |
#8
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Concorde Vs Bullet
I posted the question because i wanted to canvas opinion and spark
debate.....the very reason that these groups exist! |
#9
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Concorde Vs Bullet
"rick_little99" wrote in message
ups.com... I posted the question because i wanted to canvas opinion and spark debate.....the very reason that these groups exist! In other words, you're a a troll... |
#10
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Concorde Vs Bullet
If its travelling at its own velocity plus the velocity of Concorde,
why would it instantly slow down to the speed of Concorde after exiting the muzzle? Seems to me it would continue out the muzzle at whatever its combined velocity was. |
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