I'll post it here but I may re-post it again in a new thread because I haven't seen it anywhere so far.
At
http://www.avgflyingtigers.com is the official site of the American Volunteer Group/Flying Tigers.
Prior to that I had communication with Erik Shilling who was a NACA Test Pilot and flew both the H-75/P-36 and H-81/P-40.
Erik also went on to fly with the AVG in China, he flew the Unit Photo Plane #71 with the Swami.
I asked him because you sometimes see AVG P-40s with Red Propeller Hubs and the three color hubs on the landing gear. Erik and later a Crew Chief for the AVG both confirmed that there were no red hubs or three color hubs on the gear. The Propeller hubs were the Spinach Green and the Wheel hubs were always the light bluish-grey that was on the underside.
The AVG Pilots that I communicated with in the past believe there were two colors to the underside on the aircraft they received, some had a more whiteish grey and others had the very light blue-ish grey, but that may be something like the picture of the dress where some people see white and gold and others see blue and black.
