Best Off Skyranger
| Best Off Skyranger | |
|---|---|
|
|
| Type: | Microlight |
| Design country: | |
| Manufacturer: |
Best Off Aircraft |
| First flight: |
1991 |
| Production time: |
1992– |
| Number of pieces: |
> 1200 |
The Best Off Skyranger is an ultralight aircraft from the French manufacturer Best Off Aircraft .
history
The Best Off Skyranger was designed by French designer Philippe Prevot in Toulouse in the 1990s . Between 1994 and 1998 about 200 copies of this aircraft were manufactured under license by the Synairgie company . Today the aircraft, which is sold as a kit, is sold by the manufacturer Best Off, with the parts being mainly built by the Ukrainian company AEROS. Today it is produced in the versions Swift, V Max and V Fun, which differ, among other things, in the wingspan of the wings and the engine.
Later series of the aircraft have an enlarged rudder and an additional stabilizing fin under the fuselage. The latest version of the Skyranger, the Nynja, features a number of aerodynamic refinements, a modernized cockpit and rounded plastic panels in the fuselage area.
Both Skyranger and Nynja are manufactured under license in Brazil by Aerobravo Indústria Aeronáutica Ltda . In addition, Skyranger are manufactured under license by SkyRanger Aircraft in the USA (as kits), Eros Ltd in the Ukraine and around 150 copies by Synairgiein in France .
construction
The Best Off Skyranger is a high- wing aircraft with a fuselage that has a rectangular cross-section and is designed in tubular space. Almost exclusively straight aluminum tubes made of alloys 2017T3 and 2024T3 are used for the construction, which are mounted using secured screw connections. This construction method achieves reproducible manufacturing quality even under the conditions of amateur construction. The fabric covering consists of Dacron or optionally X-LAM. The fabric is pre-sewn by the manufacturer and is assembled and tensioned after the tubular structure has been completed.
The wing consists of a tubular lattice frame. The wing profile is produced by means of shaped battens that are inserted into fabric pockets in the covering. The properties of this profile, which is unusual for three-axis controlled aircraft, were measured in a wind tunnel in Toulouse in 1994 . The wings can optionally be folded in for space-saving hangaring . The tail units are not profiled and braced with steel cables. The oars are not balanced and are operated by cables . The ailerons are differentiated. A joystick mounted between the two seats is used for control.
The aircraft has landing flaps that can be manually adjusted to 3 positions (0 °, 10 ° and 20 °). Depending on the version, a Rotax 503 , Rotax 582 , Rotax 912 or Jabiru 80cv is used as a drive , although not all of these engines are also approved in Germany. The Skyranger is approved for towing gliders or banners.
Technical specifications
| Parameter | Data Skyranger Swift | Data Skyranger |
|---|---|---|
| crew | 1 | |
| Passengers | 1 | |
| length | 5.72 m | |
| span | 8.50 m | 9.50 m |
| height | 2.27 m | |
| Wing area | 12.80 m² | 14.27 m² |
| Empty mass | 250–275 kg depending on the equipment | 263-290 kg |
| Max. Takeoff mass | 450 kg (planned 472.5 kg) | 472.5 kg |
| Minimum speed with flaps | 65 km / h | |
| Cruising speed | 140 km / h | |
| Top speed | 199 km / h | 193 km / h |
| Range | 500 km | |
| Engines | a Rotax 912 UL ; 80 hp | a Rotax 912 UL / ULS; 100 hp |
| Device identification sheet | DULV 757-09 1 | DULV 560 / 04-1 2 |
Sporting successes
A number of national and international competition successes have been achieved with the Skyranger.
- 2010 silver medal at the FAI European Championship (David Brown)
- 2008 FAI European Championship (Paul Dewurst)
- 2007 FAI World Championship (Paul Dewurst)
- 2006 FAI European Championship (Paul Dewurst)
- 2005 FAI World Championship (Paul Dewurst)
- 2004 silver medal at the FAI European Championship
- 2003 FAI World Championship (Paul Dewurst)
- 2002 silver medal at the FAI European Championship (P. Dewurst)
- 1999 FAI World Championship
- 1996 FAI World Championship
See also
Web links
- Manufacturer website (English)
- Equipment data sheet Skyranger Swift (PDF; 47 kB)
- German model supervisor
- Website of the license manufacturer (English)
- Skyranger Swift flight manual (PDF; 797 kB)
Individual evidence
- ↑ FliegerRevue April 2010, pp. 36–37, Skyranger - The dream of a self-built ultralight aircraft
- ^ A b Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, p. 265, BAI Communications, July 15, 1998. ISBN 0-9636409-4-1
- ↑ fliegermagazin 07/2010, pp. 82–87, In a nutshell - SkyRanger Swift from Best Off
- ↑ http://www.bestoffaircraft.com/index.php/en/bestoff-aircraft/awards
- ↑ Archived copy ( Memento from January 21, 2013 in the Internet Archive )
- ↑ http://www.pprune.org/private-flying/289595-microlight-world-champions-again.html
- ↑ Archive link ( Memento from December 17, 2011 in the Internet Archive )
- ↑ Archive link ( Memento from November 30, 2004 in the Internet Archive )