A larger 4-place piston helicopter based on the R22 but equipped with a six-cylinder, carbureted Lycoming 0-540 series engine. The aircraft also has hydraulic controls.
Note: The R44 Astro is identical but has no hydraulic controls and an electric trim system.
VTOL type: Helicopter
Lift devices: 1 Single main rotor
Dedicated control device: 1 Tail rotor
Crew required: 1 in Side-by-side arrangement
Landing gear: Skids