Robinson’s R44 Raven Series Helicopters provide excellent reliability, responsive handling, and altitude performance, making the R44 the ideal helicopter for private, business, and utility applications.


The high performance R44 Raven II has a Lycoming IO-540 fuel-injected, angle-valve, tuned-induction engine, which eliminates the need for carburetor heat. The standard 28-volt electrical system ensures good starting performance in hot or cold weather, and provides additional electrical power for optional equipment.


Equipped with a Lycoming O-540 carbureted engine, the R44 Raven I offers a balance between performance and affordability. Raven I features carburetor heat assist that enhances safety and reduces pilot workload by automatically adjusting carburetor heat in response to power changes by the pilot.

EngineLycoming O-540, six cylinder, carburetedLycoming IO-540, six cylinder, fuel injected
HorsepowerDerated to 225 for takeoff and 205 continuousDerated to 245 for takeoff and 205 continuous
Max Gross Weight2400 lb (1089 kg)2500 lb (1134 kg)
Approximate Empty Weight
(including oil & std avionics)1437 lb (652 kg)1495 lb (678 kg)
Standard Fuel (29.5 gal)177 lb (80 kg)177 lb (80 kg)
Auxiliary Fuel (17.0 gal)102 lb (46 kg)102 lb (46 kg)
Pilot, Passengers and Baggage with Standard Fuel786 lb (357 kg)828 lb (376 kg)
Cruise Speed*up to 113 kts (130 mph)up to 116 kts (135 mph)
Maximum Range (no reserve)*approx 300 nm (350 sm)approx 300 nm (350 sm)
Hover Ceiling IGE @ Gross Weight6400 ft8950 ft
Hover Ceiling OGE @ 2300 lb4000 ft7500 ft
Rate of Climbover 1000 fpmover 1000 fpm
Maximum Operating Altitude14,000 ft14,000 ft
Electrical System14 volt28 volt|

*for comparison purposes only, actual results may vary


Clippers are R44s equipped with fixed or inflatable (pop-out) floats providing an additional level of safety for over-water travel.


Available on either the Clipper I or Clipper II, fixed utility floats remain fully inflated for continuous over-water operations. Fixed floats add approximately fifty pounds to the aircraft’s empty weight and reduce the aircraft’s cruise speed by approximately ten knots.


Available only on the Clipper II and designed for emergencies, pop-outs have six chambers and inflate within 2-3 seconds of activation. A lever on the pilot’s collective releases pressurized helium from a tank located under the aircraft’s front left seat. The activation lever uses a mechanical pull cable and does not rely on an electrically actuated system for inflation. Floats may be activated at speeds up to eighty knots. Pop-outs add approximately sixty-five pounds to the helicopter’s empty weight. When not in use, floats roll-up and stow in protective covers along the aircraft’s landing skids. The compact design minimizes drag and allows for easy entry and exit of the cabin.