Rigault Deproux RD-3

The Rigault-Deproux RD-3 was a tourism gyroplane built by the French company Rigault-Deproux in the 1960s.

Design

The RD-3 was a two-seat design powered by a 105 shp (78 kW) Potez 4E-20 4-cylinder air-cooled horizontally-opposed piston engine.

General characteristics

• Crew: 2
• Length: 3.5 m (11 ft 6 in) fuselage
• Height: 2.37 m (7 ft 9 in)
• Empty weight: 340 kg (750 lb)
• Gross weight: 545 kg (1,202 lb)
• Powerplant: 1 × Potez 4E-20 4-cylinder air-cooled horizontally-opposed piston engine, 78 kW (105 hp)
• Main rotor diameter: 8.4 m (27 ft 7 in)

Performance

• Maximum speed: 105 km/h (65 mph, 57 kn)
• Range: 300 km (190 mi, 160 nmi)
• Service ceiling: 3,000 m (9,800 ft)

Further reading

• STEVENS, JAMES HAY (3 February 1972). "WORLD HELICOPTER & V/STOL MARKET" (pdf). Flight. 101 (3282): 177–192. Retrieved 31 January 2019.
• Gaillard, Pierre (1990). Les Avions Francais de 1944 a 1964 (in French). Paris: Editions EPA. ISBN 2-85120-350-9.