OS 40 FP First Run
18:06
OS MAX FP 40 - Strip, Clean & Run - Early 1990's Glow Engine
36:43
OS Engine 60 FP Glow Engine Rebuild and Test Run
25:45
Webra Speed 61 Run After Ring Replacement
17:06
Vintage RC Holt Tajmer from 1970s with OS Max 10 Retro flight
6:50
Old School Model Works Raider (Pirate Stik)
2:33
OS MAX 40 FSR ABC
14:09
Starting and Tuning a 4 cycle OS FS-91 Surpass
12:37