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].

Overview

Data on design, manufacture and status

Design authority: R.J. Enstrom Corporation

Primary manufacturer: R.J. Enstrom Corporation

Parent type: No type defined

Aircraft status: No longer flying

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Tail rotor

Crew required: 1

Crew seating: Side-by-side

Landing gear: Skids

Overall Dimensions

Data on aircraft size

Overall Height: 2.74 m (9.0 ft)

Overall Width: 9.75 m (32.0 ft)

Engine Details

Aircraft powerplant (lift and/or propulsion)

Total number of engines: 1

Engine designation: Lycoming HIO-360-C1A reciprocating

Engine manufacturer: Lycoming Engines

Take-off / rated power: 153 kW (205 hp)

Weights and Performance

Data on aircraft weight and flight characteristics

Max Gross Weight (ground): 839 kg (1850 lb)

Max Range: 441 km (238 nm)

Max Endurance: 3.5 hrs (3.5 hrs)

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