FS2004 P-51D RR Cripes AMighty (9882) SurClaro Photos A Reno Racer P-51D named the Cripes A' Mighty going through it's paces near Reno/Stead airport. These old Mustangs reach speeds of up to 500 m.p.h. Not bad for a piston powered aircraft. A 3,600hp Rolls Royce Merlin engine to be exact. photo