Don Panek
I own three of the RCS 1.40. I KNOW they are fine engines. I can fly any of my planes for a whole day on a $1.50 worth of gas. BREAK THE ENGINE IN PROPERLY thats a must. I have one in a H9 T-Craft, another in a PT-19 and the thrid in a80IN Extra 330 Profile plane . No flame outs Ilove it . PJAMESRC