FPS/MPH?

OK, so if 1300 fps is 886 mph, and you are in a jet traveling 887 mph, and you hold your favorite pre-war model 27 out the window, facing forward, and fire your favorite 158 grain SWC at 1300 fps load, will the bullet leave the barrel?....:)

Larry
 
OK, so if 1300 fps is 886 mph, and you are in a jet traveling 887 mph, and you hold your favorite pre-war model 27 out the window, facing forward, and fire your favorite 158 grain SWC at 1300 fps load, will the bullet leave the barrel?....:)

Northern, or southern hemisphere?!?
 
OK, so if 1300 fps is 886 mph, and you are in a jet traveling 887 mph, and you hold your favorite pre-war model 27 out the window, facing forward, and fire your favorite 158 grain SWC at 1300 fps load, will the bullet leave the barrel?....:)

Larry

Yes, since the bullet has already been brought to 1300 fps due to the frame of reference (the gun is on the plane traveling at 1300 fps) so firing the gun forward at 1300 fps relative to the gun, the net velocity of the bullet becomes 2600 fps relative to the ground.
 
OK, so if 1300 fps is 886 mph, and you are in a jet traveling 887 mph, and you hold your favorite pre-war model 27 out the window, facing forward, and fire your favorite 158 grain SWC at 1300 fps load, will the bullet leave the barrel?....:)

Larry

Yep, 1300 ft/sec + aircraft speed. But. as friction decreases bullet velocity, you stand a slight chance of shooting yourself down. :eek: That actually happened to a Navy jet. In 1956 an F-11F fighter actually shot itself down, by shooting in a shallow dive and then continuing the dive and the path of the cannon shells and aircraft crossed paths again.

My question is the opposite in your scenario; if you shoot the gun directly backwards, will the bullet fall out of the sky?:D
 
"My question is the opposite in your scenario; if you shoot the gun directly backwards, will the bullet fall out of the sky? "

Yes. But any bullet in free fall is subject to the same acceleration due to gravity. A bullet fired horizontally from a gun will hit the ground at the same time as a bullet simultaneously just dropped. The vertical and horizontal forces can be calculated independently of each other; its called vectors.
 
<<A bullet fired horizontally from a gun will hit the ground at the same time as a bullet simultaneously just dropped.>>

*If* it doesn’t hit something else first...
 
OK, so if 1300 fps is 886 mph, and you are in a jet traveling 887 mph, and you hold your favorite pre-war model 27 out the window, facing forward, and fire your favorite 158 grain SWC at 1300 fps load, will the bullet leave the barrel?....:)

Larry

Yes, because the YOU and the GUN are already traveling at 887 mph. The bullet would still leave the the gun at 1300 fps + your static speed........IFFEN it didin't why doesn't jets run into their own machine gun bullets?
 
I got through a whole career without using algebra. Then somebody asks a dumb fool question, and then the engineers get involved. I probably didn't learn anything. A .44 special at 850 fps was good enough for Skeeter and it's good enough for me. ;)
 
Fixed! :D

Think of gravity as an elastic band, pulling objects to the Earth.

As the bullet's momentum drops to equal the force of gravity,
the bullet begins accelerating back to earth, at the rate of
32 fps/sec.
Falling bullets can, and have killed people.

The inertia of bullet rotation is miniscule, compared to the inertia of it's linear velocity.
of bullet moving

Here's a handy free program for all kinds of conversions, btw:

Convert for Windows – joshmadison.com


That's 32 feet /second squared. But they will reach a terminal velocity and not continue to accelerate.
 
OK, so if 1300 fps is 886 mph, and you are in a jet traveling 887 mph, and you hold your favorite pre-war model 27 out the window, facing forward, and fire your favorite 158 grain SWC at 1300 fps load, will the bullet leave the barrel?....:)

Larry

You must have been one of my math teachers in high school ... they were so good with coming up with questions that had absolutely nothing to do with real life...
Every body knows you can't open the window of jet plane far enough to get your model 27 out the window for a shot...
Bogus Question !!! in my opinion anyways !
 
dude to Lee Van Cleef: "This train doesn't stop in Tucumcari"

Main man Lee: "This train will stop at Tucumcari"

Me: The train will arrive at the station exactly when it arrives at the station.
 
dude to Lee Van Cleef: "This train doesn't stop in Tucumcari"

Main man Lee: "This train will stop at Tucumcari"

Me: The train will arrive at the station exactly when it arrives at the station.




“At 10:00 AM train A left the station and an hour later train B left the same station on a parallel track. If train A traveled at a constant speed of 60 miles per hour and train B at 80 miles per hour, then at what time did train B pass train A?”
 
Temp and Barometric change that number. 754 MPH is the speed of sound at 200 feet off the deck 69F at 29.97 Bar ... ask me how I know.... BOOM.
 
Set the 6 on your C scale over the 8.8 on your D scale. Just move the cursor to MPH on the C scale and read FPS on the D.

That presumes that the others still have "slipsticks" or even better the SS where the CD scales are offset by "pi to three figures". I still have both types. Dave_n
 
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