This is a tough one...but for me it just might be the F4. If you are standing on the extended centerline as one or more goes over your head while landing, they make a "howl" that almost pushes me over to a spontaneous BIG-O. Piston wise, the Hawker Sea Fury and Beech Duke are to be reckoned with. By the way, who misses the plumes of black smoke that used to flow from the ol' turbojets?? I sure do. B-52's, 707's...yeah, baby!!