- Source: DAR 21 Vector II
The DAR 21 Vector II is a Bulgarian ultralight aircraft, designed and produced by Aeroplanes DAR, first flying on 1 August 2000.
When it was available the aircraft was supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.
The aircraft was introduced in 2001 and production apparently ended in 2014, as by that year the aircraft was no longer advertised for sale by the company.
Design and development
The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a strut-braced high wing, a two-seats-in-tandem enclosed cockpit, conventional landing gear and a single engine in tractor configuration.
The Vector II has riveted stressed skin made with 1050 and 3105 aluminum sheet for corrosion resistance. The fuselage has a square cross-section. Its 9.2 m (30.2 ft) span wing employs flaps that can be set to 15° for takeoff and 30° for landing. The standard engine available is the 64 hp (48 kW) Rotax 582 twin-cylinder, liquid-cooled, two-stroke powerplant, with the four-stroke 80 hp (60 kW) Rotax 912 optional. Solo flight is accomplished from the front seat.
Variants
DAR 21
Standard version with bungee main landing gear suspension.
DAR 21S
Upgraded version with aluminum sprung main landing gear suspension for increased ground clearance.
Specifications (DAR 21)
Data from Bayerl and DARGeneral characteristics
Crew: one
Capacity: one passenger
Length: 6.35 m (20 ft 10 in)
Wingspan: 9.42 m (30 ft 11 in)
Height: 1.80 m (5 ft 11 in)
Wing area: 12.42 m2 (133.7 sq ft)
Empty weight: 250 kg (551 lb)
Gross weight: 450 kg (992 lb)
Fuel capacity: 32 litres (7.0 imp gal; 8.5 US gal)
Powerplant: 1 × Rotax 582 twin cylinder, liquid-cooled, two stroke, 48 kW (64 hp)
Performance
Maximum speed: 200 km/h (120 mph, 110 kn)
Cruise speed: 175 km/h (109 mph, 94 kn)
Stall speed: 58 km/h (36 mph, 31 kn) at gross weight, flaps down
Never exceed speed: 205 km/h (127 mph, 111 kn)
g limits: +4/-2
Rate of climb: 5 m/s (980 ft/min)
Wing loading: 36.2 kg/m2 (7.4 lb/sq ft)
References
External links
DAR 21 aircraft web page archives on Archive.org
Official video
Kata Kunci Pencarian:
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- Darzhavna Aeroplanna Rabotilnitsa
- Rotax 912
- Aeroplanes DAR
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- Rotax 582
- Avia B-135
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