TA2093-2
Heli-Preheat System – SCOTTS BELL – Model 47 and OH-47H Series with Lycoming O/VO/TVO-435. (CHT not wells required) Preheat is applied through electrical resistance heat elements located on the engine crankcase oil sump and each cylinder assembly, main and tail rotor gearboxes. Power is routed to the elements through a dedicated wiring assembly with system…