Fournier RF-4

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]

Specifications (RF-4D)

Data from In the Air:Number 230:Fournier RF-4D^[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)
• Empty weight: 270 kg (595 lb)
• Gross weight: 390 kg (860 lb)
• Powerplant: 1 × Rectimo 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

• Cruise speed: 180 km/h; 96 kn (110 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)
• Maximum glide ratio: 20:1
• Rate of climb: 3.5 m/s (690 ft/min)

See also

• Fournier RF-5

References

• Harrison, Neil. "In the Air:Number 230:Fournier RF-4D". Flight International, 2 May 1968. pp. 669–670.