In control line stunt he have one main body Pampa. Pampa is the "SIG" for control line stunt in the U.S. It is the only "SIG" for control line stunt. Outside of the U.S., its the FAI and F2B for stunt. Do you have two main controlling bodies for Classic RC pattern-SPA and CPA? On a National, level what rules do you guys follow for Classic RC pattern? Who sets the cutoff date for ships, engine sizes, specs etc?