The Pitts Model 12 is one of my all-time favorite fun planes. It also uses the Russian M14 supercharged radial mentioned before.
And this is the world-record for the largest American flag ever flown by a sky-diver - who knew?
And this husband-wife team put on quite a show. A big radial biplane, a great story-line, a great aerobatic routine and to top it off (literally), a lady on the wing!