In the early 50's my dad gave me his all silver McCoy 29 and all silver K&B Torpedo 19. I used the Torpedo first on an unknown plane and then the McCoy on a Sterling Ring Master. I never did wear them out. I eventually horse traded them away 20 yrs later. My first R/C engine and plane was a, just out, Fox 15 in a Sterling Mambo with an Ace radio in 1959.

Jim