My neighbor Joe in his Pitts 3/4 scale biplane, getting reaty for takeoff (he hasn't yet fired it up). Very aerobatic, with 180HP up front. One has to be small and slim (not much more than 5 foot 8 and 160 pounds) to fit inside this craft, the cockpit space is very small - I'd definitely never fit in there ;-) This one can keep up with the "big boys" quite easily. I've seen bigger motorcycles...

When Joe isn't buzzin' around in his Pitts, he flies commercial charter flights.