I compiled a number of pictures and videos into a summary of Fox 35 Stunt Speed here in St Louis. all of the footage was taken at the April Speed contest at Buder Park

Enjoy!
Fred

both John and Dan had a coffin tank with the pickup at the front of the tank, we think the fuel is being pushed aft during takeoff starving the fuel for a 1/2 lap. The tank I use is a normal pickup at the back of the tank without any problems. There is a whole science to the tank design for speed that I don't understand having to do with keeping the engine from going too lean or rich during the flight.

having said that Bill also probably had a coffin tank with no problems....beyond my experience

Dan is still working with his tank

Fred

If watch a speed model take off, they don't excellerate like the Quickie race type planes.  Time them for 2 laps from start and you will probably see the reason they sag on take off with front pickup.

Bob Whitney, out of Florida.