Rublič R-7
| Rublič R-7 Raček | |
|---|---|
| Type: | Aerobatic plane |
| Design country: | |
| Manufacturer: |
VPS Svazarmu |
| First flight: |
1964 |
| Number of pieces: |
1 |
The Rublič R-7 Raček ( German seagull ) was a Czechoslovak aerobatic plane .
history
The R-7 was designed by the chief designer of the Orličan plant (formerly Beneš-Mráz ) in Choceň , Zdeněk Rublič, from the early 1960s with the aim of providing the state aero clubs with an undemanding, i.e. easy-to-maintain aerobatic aircraft. Rublič therefore constructed the type in a conventional wooden construction with fabric covering and a rigid rear chassis; only the engine mount was made of light metal. A Walter Minor 6-III with 118 kW was selected as the engine . The construction was carried out in close cooperation with the glider development center (Vývojové plachtařské středisko, VPS) of the paramilitary organization SVAZARM in Medlánky. Rublič died before the construction of the prototype could be completed, after which the work of Zdeněk Hlavka was continued. In 1964 the R-7 was completed and took off on its maiden flight. The subsequent flight tests revealed rather disappointing flight characteristics, so it was decided not to put the aircraft into series production, especially since powerful alternatives were available with the models of the Trenér series . The R-7 was still flown for a longer period with the registration number OK-80 at SVAZARM.
Technical specifications
| Parameter | Data |
|---|---|
| length | 6.70 m |
| span | 7.50 m |
| height | 1.90 m |
| Wing area | 9.10 m² |
| Wing extension | 6.35 |
| V position | 6 ° |
| profile | Be 1120 |
| Main landing gear track width | 1.80 m |
| Propeller diameter | 2.00 m |
| Empty mass | 521 kg |
| Payload | 139 kg |
| Takeoff mass | 660 kg |
| Wing loading | 73.5 kg / m² |
| Power load | 4.1 kg / hp |
| drive | an air-cooled 6-cylinder in-line engine Walter Minor 6-III with two-blade variable pitch propeller V-503 |
| power | 118 kW (160 PS) |
| Tank volume | 80 l |
| Top speed | 310 km / h near the ground |
| Minimum speed | 125 km / h |
| Climb performance | 11 m / s |
| Service ceiling | 8000 m |
| Range | 350 km |
| Take-off / landing runway | 255 m / 302 m |
| crew | 1 |
literature
- Hans-Joachim Mau: Czechoslovak aircraft . 1st edition. Transpress, Berlin 1987, ISBN 3-344-00121-3 , p. 102/103 .
- Wilfried Copenhagen : The great aircraft type book . Transpress, Berlin 1977, p. 73 .
- Heinz A. F. Schmidt: Airplanes from all over the world . Volume IV. 2nd revised edition. Transpress, Berlin 1974, p. 35 .
Web links
- History, dates, photos (Czech)