Produced by Tanis Aircraft Products, the Heli-Preheat System reduces torque oscillation, thermal stress, spool up, and launch times while increasing reliability and safety of operations. Using electrical resistance heat pads mounted throughout the aircraft, the system provides Individual preheating to the engine, critical driveline components, fluids, battery, engine reduction gearboxes, main and tail rotor gearboxes, oil and hydraulic modules and attached accessories.