By Witold Jaworski.
This is how the Curtiss Tomahawk II, reg. P-8186 looked like in early 1942. This airplane was used by the AVG in Kunming, in early 1942. It was assigned to Flight Leader William N. Reed, from 3rd Squadron ("Hell's Angels").
This is a free (CC-licensed) model, available from http://airplanes3d.net/downloads-p40_e.xml
(It includes detailed cockpit interior retractable landing gear).
A detailed guide which describes how I built this model is available at: http://airplanes3d.net/wm-000_e.xml