You can buy a MiG right now from a variety of sellers in the US. It's legal. As for noise and safety regulations, I cracked open my copy of FAR-AIM (Federal Avi

You can buy a MiG right now from a variety of sellers in the US. It's legal. As for noise and safety regulations, I cracked open my copy of FAR-AIM (Federal Aviation Regulations) for 2009, and here's what it has to say about speed limits: (a) Unless otherwise authorized by the Administrator, no person may operate an aircraft below 10,000 MSL at an indicated airspeed of more than 250 knots (288 m.p.h.) The other parts all relate to how you must fly even slower when you're in class C, D, or B airspace. Unless your minimum safe airspeed is greater than the maximum, in which case you may fly your minimum safe airspeed. 91.807 of the FAR-AIM prohibits civilian craft from passing Mach 1, but apparently it is legal to own such a plane.