[QUOTE=Ken Erickson;12217603] However, testing in Texas and Indiana has shown that our planes, with this engine, are demonstrably faster than with the Thunder Tiger .40 Pro
I don't understand how you can say the Evo is demonstrably faster that the TT 40. Look at Georgetown's last race. Fast time was 1:25.33 with the Evo .46nx. 2015 NATS fast time was 1:24.89 with a TT .40 pro. The Evo doesn't seem to be any faster to me in this case. We race c-40 with .46's "OS Ax/Fx mostly" in Amarillo and I ran my TT .40 pro agianst them and never had a problem keeping up or outrunning the .46 engines. And that's with running the same props.