R 44 Raven II is one the most successful models of Robinson. Raven II is equipped with injector engine IO-540 Lycoming, that has more power and allows to improve characteristics of height, to increase helicopter pay load and speed. R44 Raven II is also available in versions IFR Trainer, Newscopter and Police Helicopter.
The engine can decrease the power up to 245 hp within 5 minutes and up to 205 hp during continuous working. It guarantees longer service life and low maintenance cost. Moreover, helicopter Raven II in comparison with Raven I has 45 kg more takeoff weight, increased static ceilings IGE and OGE. Problems with carburetor and its icing are fully excluded.
Another main improvement of R44 Raven II model is noise level reduction. Modification of MR and TR blades construction allowed to make the helicopter quieter. Both rotors are equipped with noise-reduction blades tips, they reduce noise meaning during the flight up to 1 dB. MR blades have more surface area for pay load increase.
Features of R44 Raven II:
MR Blades have increased surface area, it produces more lift capacity reducing vibration.
MR and TR Blades have new aerodinamical tips that reduce noise level (at height of 150 m) up to 1 dB, in spite of increased takeoff weight.
Standard 28V electrical system provides good start characteristics in any weather conditions and allows to use excess power for optional equipment.