R44 SERIES HELICOPTERS
Robinson’s four-seat R44 helicopters are high performing, reliable and easy to maintain. R44s have a two-bladed rotor system, T-bar cyclic, streamlined instrument panels and a crashworthy fuel system. An aluminium monocoque and powder-coated steel tube structure provides a light weight yet robust airframe while the aerodynamic fuselage optimises airspeed and fuel economy. Hydraulically boosted controls eliminate cyclic and collective feedback forces and provide responsive handling. A low tail-rotor tip speed and large cambered tail reduce flyover noise.
Raven I and Clipper I helicopters are powered by Lycoming’s O-540 carburetted engine with carburettor heat assist that automatically adjusts carburettor heat enhancing safety and reducing pilot workload. Raven II and Clipper II helicopters are powered by Lycoming’s IO-540 fuel-injected, angle-valve, tuned-induction engine, which eliminates the need for carburettor heat. The standard 28-volt electrical system ensures good starting performance in hot or cold weather and provides additional electrical power for optional equipment.
Cadet helicopters include the same airframe, rotor system and power plant (Lycoming O-540) as the proven R44 Raven I. Where the Cadet differs is its rear seats have been removed providing ample cargo space, the maximum gross weight has been reduced to 2200 lbs and the engine power has been de-rated to 210 hp take off and 185 hp continuous. The lower weight and de-rated power provide increased performance margins at high altitudes and extend the time between overhaul (TBO) from 2200 hours to 2400 hours, reducing operating costs. A variety of optional equipment including air conditioning, a stability augmentation system and autopilot are available.