Senior Pattern Association - SPA
Runryder - RC Helicopter Forum
HeliFreaks - RC Helicopter Forum
RC Universe - RC Forum
Raptor Technique - Everything you want to know about TT Raptor RC Helicopters
IRCHA - International Radio Controlled Helicopter Association
Futaba - Futaba Radio Systems Futaba user Manual- Futaba Radio Systems user Manuals
Servo City - Servo spec site
The Gigantic Servo Chart - Servo site with specs on most servos
HITEC RCD - Hitec servo website
Additional links may be added by contacting the club officers.