TigerDrive This unit replaces the recoil starter or onboard starter found on many R/C Cars, trucks, boat and helicopters, and permits use of a standard hand-held starter or cordless drill. This eliminates broken ropes and burned out onboard starters and allows the engine to be turned faster for easier starting. The drive direction can be oriented in four directions to accommodate exhaust and chassis arrangement. There are models to fit most engines from .12 to .46, and installation is very easy — only three or four screws. TigerDrives are constructed of durable steel gears, sturdy aluminum frames, bronze bushings, long lasting bearings and heavy duty nylon cover. Finally, no more yanking on a short rope!