Fournier RF 3

{{Short description|French motor glider, 1963}}

{{Infobox Aircraft Begin

| name=Fournier RF-3

| image=Fournier_RF-3_01.JPG

| caption=Belgian-registered RF-3 in 2012

}}{{Infobox Aircraft Type

| type= motor glider

| national origin=France

| manufacturer=Societé Alpavia

| designer=René Fournier

| first flight=1963 (RF-3)

| introduced=

| retired=

| status=

| primary user=

| number built=1 (RF-1)
2 (RF-2)
89 (RF-3)

| developed from=

| variants with their own articles=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)

File:G-BLXH Alpavia-Fournier RF.3 (9693412360).jpg]]

{{Aircraft specs

|ref=Jane's All The World's Aircraft 1965–66Taylor 1965, p. 30.

|prime units?=met

|genhide=

|crew=1

|capacity=

|length m=6.00

|span m=11.20

|height m=

|height ft=

|height in=

|wing area sqm=11.0

|wing area sqft=

|aspect ratio=11.4:1

|airfoil=NACA 23015 at root, NACA 23012 at tip

|empty weight kg=240

|empty weight lb=

|gross weight kg=

|gross weight lb=

|max takeoff weight kg=350

|fuel capacity={{convert|30|L|abbr=on}}

|eng1 number=1

|eng1 name=Rectimo

|eng1 type=air-cooled horizontally-opposed four-cylinder piston engine

|eng1 kw=

|eng1 hp=39

|perfhide=

|max speed kmh=190

|max speed mph=

|max speed kts=

|cruise speed kmh=160

|cruise speed mph=

|cruise speed kts=

|cruise speed note= (econ cruise)

|never exceed speed kmh=270

|never exceed speed note=

|stall speed kmh=70

|range km=500

|range miles=

|range nmi=

|ceiling m=5800

|ceiling ft=

|climb rate ms=4.0

|climb rate ftmin=

|sink rate ms=1.20

|sink rate note= (engine off)

|more performance=*Take-off run to 15 m (50 ft): {{convert|270|m|ft|0|abbr=on}}

  • Landing run from 15 m (50 ft): {{convert|230|m|ft|0|abbr=on}}

|avionics=

}}

References

{{reflist|refs=

Simpson 1991, pp. 153-154

}}

  • {{cite book |last= Simpson| first= R.W. |title= Airlife's General Aviation|year= 1991|publisher= Airlife Publishing|location= Shrewsbury, England|isbn=1-85310-194-X}}
  • {{cite book|last=Taylor|first=John W. R.|author-link=John W. R. Taylor|title=Jane's All The World's Aircraft 1965–66|year=1965|publisher=Sampson Low, Marston & Company, Ltd|location=London}}