One of the greatest time periods of flight.
A link to a P-40 sim:
http://www.youtube.com/watch?v=QwAagsDnAqw&v3
This is from one of the projects I have worked on over the past several years.
By the way, the engine sound is from a real P-40 based at Addison Airport at the Cavanaugh Flight Museum.
They took the plane up for us so we could record and film the whole experience.
You can see the actual plane and walk around here:
http://www.youtube.com/watch?v=6xeuaBsqbx4
http://shockwaveproductions.com/
http://www.cavanaughflightmuseum.com/