Bill, Back in the mid 70's the rules for 1/4 Midget Racing (.15 size engines) stipulated that you must land with your engine running, or lose 1/2 point of your finishing score. I installed a nicad in my airplane to provide glo-heat. Tommy Baker saw my set up, and fixed his airplane at the Nats. Tommy went on to win first place with his setup. For my installation, I wired in a micro switch, that turned the battery off at high throttle, so only when I reduced throttle did I have glo-heat. I used the set up to start my engine too. The next year on board glo-heat was banned. Good luck, Greg