DAR 1
| DAR 1 | |
|---|---|
| File:DAR1-Plovdiv.jpg | |
| General information | |
| Type | Civil training aircraft |
| National origin | Bulgaria |
| Manufacturer | DAR |
| Designer | Hermann Winter |
| Number built | 20[1] |
| History | |
| First flight | 1926 |
The DAR 1 Peperuda (butterfly) was a 1920s Bulgarian two-seat touring or trainer biplane, designed by Hermann Winter and built by the DAR – Drjavna Aeroplane Rаbotilnitsa – State Aircraft Workshops.[1][2]
Design and development
[edit | edit source]The aircraft was a conventional two-seat single-bay biplane with a fixed tailskid landing gear, powered by a 60 hp (45 kW) Walter NZ radial engine.[1][2] Further development resulted in the DAR 1A, which was powered by an 85 hp Walter Vega engine, eight DAR 1As being produced.
After the maiden flight and successful flight tests the DAR 1 was put into production in 1926.[1] Production DAR 1A aircraft were delivered from 1928.[1]
Operational history
[edit | edit source]The twelve DAR 1 and eight DAR 1A aircraft were used by the Bulgarian Air Force at the Kazanlak Air School, for primary training and the Yato fighter squadron for continuation training, from 1926 to the early 1940s. Some DAR 1A aircraft were also used by the Civil Air Service as glider tugs.
Variants
[edit | edit source]- DAR 1
- Initial production variant with a 60hp (45kW) Walter NZ 60 radial engine, 12 built.[2]
- DAR 1A
- Variant powered by an 85hp (63kW) Walter Vega engine, eight built plus some upgraded from DAR 1s.[1]
Operators
[edit | edit source]
Specifications (DAR 1)
[edit | edit source]Data from Balkan Birds,[3] p. 23.
General characteristics
- Crew: two
- Length: 6.25 m (20 ft 6 in)
- Wingspan: 9.30 m (30 ft 6 in)
- Empty weight: 405 kg (893 lb)
- Gross weight: 640 kg (1,411 lb)
- Powerplant: 1 × Walter NZ-60 radial piston engine, 45 kW (60 hp)
Performance
- Maximum speed: 135 km/h (84 mph, 73 kn)
See also
[edit | edit source]Related lists
References
[edit | edit source]Bibliography
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- Insignia Issue 8 March/April 1998 pp. 132–135
- Air Power of the Kingdom of Bulgaria Part III
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