Flitzer Z-21
| Z-21 | |
|---|---|
.jpg) | |
| Role | Amateur-built aircraft |
| National origin | United Kingdom |
| Manufacturer | Flitzer Sportplanes Bell Aeromarine |
| Designer | Lynn Williams |
| Status | Plans available (2012) |
| Unit cost |
£160 (plans, 2015) |
The Flitzer Z-21 or Staaken Flitzer is a British amateur-built aircraft, designed by Lynn Williams and produced by Flitzer Sportplanes of Aberdare, Wales. The aircraft is supplied as plans for amateur construction.[1][2]
In the late 1990s it was also marketed as plans and in kit form by Bell Aeromarine of Leicester, UK.[3]
Design and development
The Z-21 is a single-seat, open cockpit 1920s-style biplane with fixed conventional landing gear with spoked wheels and a single engine in tractor configuration.[1][2]
The aircraft is made from wood, with its flying surfaces covered in doped aircraft fabric. Its 5.5 m (18.0 ft) span wing has a combined area of 9 m2 (97 sq ft) and ailerons on the bottom wing only. The aircraft was designed for the 65 hp (48 kW) Volkswagen air-cooled engine, but other variants have been developed that use a variety of engines, including the 110 hp (82 kW) Rotec R2800 radial engine.[1][2]
Further planned developments include a tandem two seater, a four aileron version and a lighter weight version.[1][2]
Operational history
In August 2014 there were eleven Flitzers registered in the United Kingdom.[4]
Specifications (Z-21)
Data from Bayerl and Tacke[1][2]
General characteristics
- Crew: one
- Wingspan: 5.5 m (18 ft 1 in)
- Wing area: 9 m2 (97 sq ft)
- Empty weight: 218 kg (481 lb)
- Gross weight: 341 kg (752 lb)
- Fuel capacity: 38.6 litres (8.5 imp gal; 10.2 US gal)
- Powerplant: 1 × Volkswagen air-cooled engine four cylinder, air-cooled, four stroke automotive conversion, 48 kW (65 hp)
- Propellers: 2-bladed wooden
Performance
- Maximum speed: 150 km/h (93 mph; 81 kn)
- Cruise speed: 137 km/h (85 mph; 74 kn)
- Stall speed: 67 km/h (42 mph; 36 kn)
- Rate of climb: 3.6 m/s (710 ft/min)
- Wing loading: 37.9 kg/m2 (7.8 lb/sq ft)
References
- 1 2 3 4 5 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 103. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
- 1 2 3 4 5 Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 108. Flying Pages Europe SARL, 2015. ISSN 1368-485X
- ↑ Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 362. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1
- ↑ "CAA Register".