I took both of the Barons to the flying field today, not to fly, it was too windy, but to check the fuel consumption. The Ukrainian Baron was placed in the Best Mate stand and the engine, a Thunder Tiger 54, was started. Having adjusted the main needle for optimum rpm, the engine was stopped and the tank refilled. The tank is the smallest available here in France, 90cc or about 3 fluid ozs. The engine was left running continuously at maximum speed until it had exhausted all of the fuel and stopped. It had run flat out for 13 minutes and 58 seconds.
As each round of La Coupe Des Barons lasts for only five minutes, I have sufficient fuel in this little tank for each round. Only the pylon race requires continuous high speed running. I didn't bother checking the fuel consumption of the other Baron. It's Magnum 52 would have been similarly frugal!