Pete, as far as I know, the H-1 has nothing to do with the Corsair. It was made (originally) by Howard Hughes in the late 30s, and was one of the most carefully constructed aircraft ever built. No part of it was factory-made; everything was hand-crafted. Maybe the Corsair was modeled after the H-1?

Thanks for the kudos, ramsa! I'm sure it will work for 2k4, but someone will have to tell me where to add the extra stuff in the aircraft.cfg and airfile, as I haven't got 2k4 and I don't know a thing about the differences.
What about the poly number?

Isn't that a bit high for such a small aircraft? I don't know the poly numbers on any other aircraft, so if someone could give me an idea of what is too much, I would be greatful!