Initial protype for the Model 171 Sycamore Type series. 2 prototypes built.

Source: ”Helicopters & Autogyros of the World”, Paul Lambermont with Anthony Pirie, Second edition 1970, Cassell & Company Ltd, SBN 304 93390 2

A description of the aircraft can also be found in the following reference,

Source: "Bristol Helicopter | First Detailed Survey of Latest British Rotary-WIng Aircraft", FLIGHT, Oct 30 1947

Overview

Data on design, manufacture and status

Design authority: Bristol Aeroplane Company, Helicopter Division

Primary manufacturer: Bristol Aeroplane Company, Helicopter Division

Parent type: Bristol Type 171 Sycamore

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: Wheels (non-retractable)

Overall Dimensions

Data on aircraft size

Engine Details

Aircraft powerplant (lift and/or propulsion)

Total number of engines: 1

Engine designation: P&W R-985 reciprocating

Engine manufacturer: Pratt & Whitney

Take-off / rated power: 336 kW (450 hp)

Weights and Performance

Data on aircraft weight and flight characteristics

Max Gross Weight (ground): 2200 kg (4850 lb)

Max Range: 370 km (200 nm)

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