ROBINSON R44 Raven II

Introducing the R44 Raven II, the latest derivative of the very successful and proven R44 helicopter line. The Raven II is equipped with a fuel injection, angle valve, turned- induction, IO-540 Lycoming engine which produces substantially more power and give Raven II greater altitude performance, more payload, and increased speed. The Raven II configuration is also available as an IFR Trainer, Newscopter, Police Helicopter, and Clipper II.

The New Fuel injection engine provides higher Power for better performance and eliminates the need for carburetor heat. The engine is derated to 245Hp for 5 minutes, and 205Hp maximum continuous rating, to assure a long life, and lower cost of maintenance. Overall, the Raven II provides a favorable 100Lb increase in the R44 gross weight and increase IGE  and OGE hover ceilings, while eliminating the Carburetor and carburetor icing problem.

Another major enhancement is the reduced noise level of the Raven II. The quieter helicopter features redesigned main and tail rotor blade. Both set of Rotors are fitted with noise attenuating blade tip caps that decrease flying noise by 1 db. The main rotor blades also have more surface area for the capability at altitude. 

Raven II features:

-Main rotor blades have greater effective lifting area which reduce vibration.

- Main and tail blades have new aerodynamic tip caps which reduce 500-foot flyover noise level by nearly one decibel, despite the high gross weight.

- A standard 28 volt electrical system ensures good starting performance in hot or cold weather and provides additional power for optional equipement.

Weights                                                   Performance

Gross Weight.....................................2,500lb            Cruise Speed@2500lbs......135mph(117KTS)
Empty Weight Equipped(w/ full oil).....1,506lb             Maximum Range105kts (noreserve)............over 400miles
Standard Fuel(30.6 gal).........................184lb             Hover Ceiling IGE @ 2500lb...................8,950feet
Auxiliary Fuel(18.5 gal)..........................110lb             Hover Ceiling OGE @ 2300lb.................7,500feet
Passengers & Baggage w/standard fuel.....810lb           Hover Ceiling OGE @ 2500lb.................4,500feet
Passengers & Baggage w/aux. fuel...........700lb            Maximum Operating Altitude...................14,000feet                                                                                                                                   Max. Rate of climb @ 2500Lb & 600ft....over 1,000ft