The Viking Dragonfly is an American amateur made aircraft, designed by Bob Walters and produced by Viking Aircraft LLC from Elkhorn, Wisconsin. Aircraft are provided as kits or as plans for amateur construction.
Video Viking Dragonfly
Design and development
The Dragonfly is a two-seat plane that features a tandem wing layout with the front wing mounted low and the other behind the cockpit in shoulder position, a two-seat-side-by-side cockpit configuration under a bubble canopy, fixed landing gear and single engine in tractor configuration. The cockpit has a width of 43Ã, (109 cm)
The aircraft is constructed of composites, based on a construction technique pioneered by Burt Rutan at Rutan Aircraft Factory (RAF). The airframe design is visually similar to Quickie 2 RAF, independently developed, but Dragonfly has a larger airfoil and smaller engine, resulting in a slower but more benign aircraft. Its forward 20Ã, ft (6.1Ã, m) wing span employs an airfoil GU25-5 (11) 8 mod, when the rear wing (span 22Ã, ft) uses Airfoil Eppler 1212. Both wings have a total area of ​​92.2 sq ft (8 , 57 m 2 ). The standard machines used include 60Ã, hp (45Ã, kW) air-cooled engines Volkswagen and 85Ã, hp (63Ã, kW) Jabiru 2200 four-stroke powerplants. The construction time of the provided kit is estimated to be 700 hours, while the plan is estimated to be over 1200 hours.
Maps Viking Dragonfly
Operational history
Dragonflies were given the New Extraordinary Design Award at the EAA Convention in 1980. In 1998, 500 examples of all variants were reported to fly.
Variant
- Dragonfly Mk I
- The original version with the main landing gear was installed in the fairing at the bottom end of the wing. Operation requires a wide asphalt runway and taxiway due to the very wide main wheels.
- Dragonfly Mk II
- Version with conventional landing gear.
- Dragonfly Mk III
- Version with three-wheeled landing gear.
Specifications (Mark III Millennium)
Data from
General characteristics
- Crew: 1
- Capacity: 1 passenger
- Length: 19Ã, ft 0Ã, in (5.79 m)
- Wing width: 22Ã, ft 0Ã, in (6.71 m)
- Height: 5Ã, ft 6Ã, in (1.68 m)
- Wing area: 92.1 sq ft (8.56 m 2 )
- Empty weight: 600 pounds (272 kg)
- Gross weight: 1,250 pounds (567 kg)
- Powerplant: 1 ÃÆ'â € "Jabiru 2200 air-cooled flat-four
Performance
- Roaming speed: 130 mph (209 km/h; 113 kn)
- Kiosk Speed: 55 mph (89 km/h, 48 kn)
- Never exceeds speed: 180 mph (290 km/h; 156 kn)
- Range: 500 mi (434 nmi; 805 km)
- g limit: 4.4, -2.0
- Ascent level: 850Ã, ft/mnt (4.3 m/s)
See also
- Similar planes
- Rutan Quickie
- QAC Quickie Q2
References
- Jackson, Paul. Jane's All The World's Aircraft 2003-2004 . Coulsdon, UK: Jane's Information Group, 2003. ISBNÃ, 0-7106-2537-5.
External links
- Photo Dragonfly Mk III
Source of the article : Wikipedia
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