Originally Posted By: RickF
Cam see if you can find some FAA sites and the mechanics of aircraft propulsion, it can get complicated due to the fine window of keeping propeller driven aircraft within the limits of transonic speeds. The only reason we have never seen a propeller driven plane go supersonic is because of the limitations of the propeller, not the plane or engine!

Mark is right, we all need a Warp-Speed button! laugh

I couldn't find anything published by the FAA, but I found this interesting article from the American Institute of Aeronautics and Astronautics. It mentions the P-47 among others - link.
The only reasonable argument for owning a gun is to protect yourself from the police.