Originally two-seated and two-bladed, but changed to three-seated and three-bladed as a prototype developed in 1960. Later, the tail boom was updated from steel tubing to aluminum semi-monocoque [Ref 316].
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