Fournier RF 3

Fournier RF-3
Belgian-registered RF-3 in 2012
General information
Type	motor glider
National origin	France
Manufacturer	Societé Alpavia
Designer	René Fournier
Number built	1 (RF-1) 2 (RF-2) 89 (RF-3)
History
First flight	1963 (RF-3)
Variant	Fournier RF 4

The Fournier RF-3 is a single-seat motor glider designed by René Fournier and first flown in 1960.

Design and development

Fournier produced the Volkswagen-powered RF-1 single-seat motor-glider with a high-aspect ratio low-mounted wing, registered F-WJGX it first flew on 6 July 1960. Fournier followed it with an improved variant, the RF-2 using a Rectimo AR.1200 engine, the first of two-built, with the help of Centre Est, first flew in June 1962.

Fournier started a company Societé Alpavia to manufacture a production variant of the RF-2, named the RF-3. The first RF-3 was exhibited at the June 1963 Paris Air Show. Series production commenced later that year.

An aerobatic variant with a strengthened airframe was produced as the Fournier RF 4.

Variants

RF-1

Prototype Avions Planeur first flown in 1960, one built.

RF-2

Improved variant, first flown in 1962, two built.

RF-3

Production variant first flown in 1963, 89 built by Alpavia at Gap-Tallard.

Specifications (RF-3)

Data from Jane's All The World's Aircraft 1965–66

General characteristics

• Crew: 1
• Length: 6.00 m (19 ft 8 in)
• Wingspan: 11.20 m (36 ft 9 in)
• Wing area: 11.0 m² (118 sq ft)
• Aspect ratio: 11.4:1
• Airfoil: NACA 23015 at root, NACA 23012 at tip
• Empty weight: 240 kg (529 lb)
• Max takeoff weight: 350 kg (772 lb)
• Fuel capacity: 30 L (6.6 imp gal; 7.9 US gal)
• Powerplant: 1 × Rectimo air-cooled horizontally-opposed four-cylinder piston engine, 29 kW (39 hp)

Performance

• Maximum speed: 190 km/h (120 mph, 100 kn)
• Cruise speed: 160 km/h (99 mph, 86 kn) (econ cruise)
• Stall speed: 70 km/h (43 mph, 38 kn)
• Never exceed speed: 270 km/h (170 mph, 150 kn)
• Range: 500 km (310 mi, 270 nmi)
• Service ceiling: 5,800 m (19,000 ft)
• Rate of climb: 4.0 m/s (790 ft/min)
• Rate of sink: 1.20 m/s (236 ft/min) (engine off)
• Take-off run to 15 m (50 ft): 270 m (886 ft)
• Landing run from 15 m (50 ft): 230 m (755 ft)

References

• Simpson, R.W. (1991). Airlife's General Aviation. Shrewsbury, England: Airlife Publishing. ISBN 1-85310-194-X.
• Taylor, John W. R. (1965). Jane's All The World's Aircraft 1965–66. London: Sampson Low, Marston & Company, Ltd.

External links

Wikimedia Commons has media related to Fournier RF 3.