Why the oil leackages produces always the same canopy stayn ?

[Puck]

The extreme version of this can be experienced on vehicles like my new bike.  It's called "red shift"...

[clouds]

I only say Falcon4 is and it was considered de facto one of the best simulators of all times.

And I think their programmers have studied very well what they've implemented.

It seems for you it could be a hard problem speack into the voice comm and to be heard in a real ww2 plane.

Engine rumble, fire and other, how the hell could the pilots heard the orders in so drastic situation ?

[Chairboy]

Because the headphones were amplified and their ears were covered.  C'mon, get with the program.  Nobody flies either F-16s or P-51s with a bare head in battle.

[clouds]

Damn.....nobody here have ever flew a prop plane or something like a ww2 plane to tell us wich feedback we could still have on that sorta machine ?

[Karnak]

Originally posted by clouds
And I think their programmers have studied very well what they've implemented.

You might be surprised.

[kamori]

Wasnt this post about Oil on windshield ?

kalamori

[Citabria]

in a warbird you will hear nothing outside the cockpit. the noise of the engine is insane and you are wearing headphones.

the idea that at 2 football fields distance you can hear the impact of a bullet or anything else for that matter is silly

[Citabria]

and btw do you think there is sound in outer space?

[Soulyss]

Sure you will. The noise will be transmitted through the airframe and internal air of the aircraft.

Would you? I mean I'm far from an expert on these things but if the plane is travelling faster than the speed of sound which of course means the pilot is travelling faster than sound, how can the sound generated by the engines which are behind reach the pilots ears?  The sound waves would have to travel faster than the plane to reach the pilot. Seems like sound reasoning unless I'm missing somthing which I've been known to do.

Of course this is all irrelevant to what this thread was initially about but now I'm curious.

[GtoRA2]

I can not talk about the engine on a warbird, but I have been in a car with no mufflers, a big V8, (400 cubes) puts out so much noise at 2000 RPM you can not hear anything, even someone screaming at you from the passager seat is hard to hear.


I can only image what a 1650 cube engine or a 2800 cubic engine is like when sitting less then ten feet behind the engine.


I would put my money on not being able to hear a gun shot 5 feet away let alone 50 plus yards.

[Karnak]

You're missing the fact that it is relative, not absolute.

From the standpoint of the soundwaves the airframe and air contained within the aircraft are moving at 0mph as the soundwaves were generated by an object (the engine) that is moving at exactly the same rate as the sound conductor's in question.  It matters not at all what the relative speed between the aircraft and ground is, or between the aircraft and the exterior air.

Sound moves throug the matieral of the aircraft at the speed it will, and moving the aircraft moves the soundwaves as well.

[Puck]

Sound propagates at various speeds depending on what it's traveling through.  If you can get an aircraft to travel faster than the speed of sound through the structure I suspect it would be silent.  In the case of good old fashoned aluminum (which is a hair over 5,000 m/s or more than 10,000 miles an hour) you'd have to move pretty quick.

As for whether or not the movement of the structure matters, I'd say it does; you're still propagating a pressure wave, and if the medium the wave is moving through is ALSO moving it will not propagate at the same rate.  Now, of course, I have to start digging for references  

I've only been in a couple high performance jets; they were plenty noisy on the other side of the brain bucket.  Our resident F-111 pilot assures me this is normal.

[Karnak]

The pressure wave is contained within the moving object and is moved with the object.  It matters not at all to the molecules of the object what speed they are moving at in relation to objects far away.  The wave nudges the aluminum molecule next to it just fine.

[BenDover]

Originally posted by Citabria
and btw do you think there is sound in outer space?

There's no sound in space because there's nothing in space, sound travels by vibrations through the atoms.

Wait, this wasn't one of those rhetorical questions was it?

[Soulyss]

Ahhh interesting, I'll have to ponder that awhile.