An interesting note from his website about the Wildcat.
"The Wildcat has an interesting flap system that is activated by the vacuum system. Instead of using positive pressure to operate the flap cylinder, this aircraft uses negative pressure or suction. A large tank in the rear of the aircraft stores the “negative” air pressure. At higher speeds, the negative pressure does not create enough force to overcome the air loads to lower the flaps. It will not hurt the system, as in some aircraft, to put the flaps down at high speed. They just simply won’t come down! Pilots used this to their advantage in dogfights and could select the flap handle down before engaging another aircraft. If, during the dogfight, the airplane happened to slow down below a certain speed, the flaps would creep out. This gave the Wildcat a tighter turning radius, which was a major advantage in a dogfight, as they could potentially turn inside the opponent and get on his tail."
This would be a pretty cool feature, hit flaps before a fight in the F4F and have them come out as you slow down.
