Fournier RF-4

From Wikipedia, the free encyclopedia

The Fournier RF-4 is a single-seater motor glider designed by René Fournier in 1966. It is an aerobatic version of the Fournier RF-3.[2][1]

Design and development

Conceived as a motor glider and sport touring aircraft, the RF-4 was introduced in 1966. It is of all-wood construction and is fully aerobatic. The landing gear consists of a monowheel gear which retracts forward into a fibreglass cowling. The main wheel has a brake which is manually operated. There is a small steerable tailwheel and wing-mounted outrigger wheels.[3]

Operational history

An RF-4D was flown by Mira Slovak across the Atlantic Ocean while participating in the May 1969 Daily Mail Air Race. The flight won a £1,000 prize offered by the London Evening News for the best performance in the race by an aircraft under 5,000 lb (2,268 kg) gross take-off weight.[3] The main landing gear fork is an ongoing maintenance issue, with regular replacements needed.[4]

Specifications (RF-4D)

Sportavia Fournier RF-4D

Data from In the Air:Number 230:Fournier RF-4D and Plane and Pilot[5][3]

General characteristics

  • Crew: 1
  • Length: 6.05 m (19 ft 10 in)
  • Wingspan: 11.28 m (37 ft 0 in)
  • Height: 1.57 m (5 ft 2 in)
  • Wing area: 11.3 m2 (122 sq ft)
  • Aspect ratio: 11.2
  • Empty weight: 270 kg (595 lb)
  • Gross weight: 390 kg (860 lb)
  • Fuel capacity: 38 litres (8.4 imp gal; 10 US gal)
  • Powerplant: 1 × Rectimo 4 AR 1200 (VW) air-cooled flat-four piston engine, 29 kW (39 hp)
  • Propellers: 2-bladed Hoffmann, 1.50 m (4 ft 11 in) diameter

Performance

  • Maximum speed: 196 km/h; 106 kn (122 mph)
  • Cruise speed: 177 km/h; 96 kn (110 mph)
  • Stall speed: 74 km/h; 40 kn (46 mph)
  • Never exceed speed: 249 km/h; 135 kn (155 mph)
  • Range: 644 km; 348 nmi (400 mi)
  • Endurance: 4
  • Service ceiling: 5,791 m (19,000 ft)
  • g limits: 11
  • Maximum glide ratio: 20:1
  • Rate of climb: 3.5 m/s (690 ft/min)

See also

References

Wikimedia Commons has media related to Fournier RF-4.
  1. ↑ 1.0 1.1 pilotfriend.com: Fournier aircraft history, performance and specifications - accessed 13 March 2008
  2. ↑ Sailplane Directory: Fournier RF 5 - accessed 13 March 2008
  3. ↑ 3.0 3.1 3.2 Plane and Pilot: 1978 Aircraft Directory, page 73. Werner & Werner Corp, Santa Monica CA, 1977. ISBN 0-918312-00-0
  4. ↑ Jack Lambie (October 1979). "Cross Country in a Fournier Motor Glider". Air Progress: 50. 
  5. ↑ Harrison 1968, pp. 669–670.
Aircraft designed by René Fournier
Aircraft
Competitions
Maneuvers
Organizations
Pilots
Other
Lists relating to aviation
General
Military
Accidents/incidents
Records
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.