Engineering:IS-B Komar
| IS-B Komar | |
|---|---|
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| Role | Glider |
| National origin | Poland |
| Manufacturer | Jeżów Glider Workshop |
| Designer | Antoni Kocjan & Marian Wasilewski |
| First flight | 16 January 1949 |
| Number built | 23 |
| Developed from | Kocjan Komar-bis |
The IS-B Komar (Instytut Szybownictwa – gliding institute) was a single-seat glider designed and built in Poland from 1947.
Development
During the 1930s Antoni Kocjan designed and built the Kocjan Komar (gnat) series of gliders, with 67 built in Poland and licensed production in several countries, before the start of World War II. After the war Marian Wasilewski, at the gliding institute, resurrected the design with improvements, resulting in the IS-B Komar, (sometimes misidentified as the IS-8 Komar or vice versa), which flew in January 1948 and entered production in that year with five "IS-B Komar 48" gliders built. Production continued in 1949, as the IS-B Komar 49, with 23 built. The IS-B was constructed primarily of wood with a plywood covered fuselage and fabric covered high set strutted wings. On 19–20 October 1949, Stanisław Wielgus, flying "Komar 48" SP-732, established a world record for duration, with a flight lasting 35 hrs 14 min. The "IS-B Komar" gliders continued flying with clubs up to the mid-1960s and several are preserved in museums or restored to airworthy status.
Variants
- IS-B Komar 48
- Production model for 1948, 5 built.
- IS-B Komar 49
- Productionj model for 1949, 20 built.
Specifications (IS-B Komar)
Data from http://www.piotrp.de/SZYBOWCE/pis8.htm
General characteristics
- Crew: 1
- Length: 6.75 m (22 ft 2 in)
- Wingspan: 15.8 m (51 ft 10 in)
- Height: 1.75 m (5 ft 9 in)
- Wing area: 17.4 m2 (187.3 ft2)
- Aspect ratio: 14.4:1
- Wing profile: Göttingen 535
- Empty weight: 148 kg (326.3 lb)
- Gross weight: 225 kg (496 lb)
Performance
- Maximum speed: 140 km/h (87 mph)
- Stall speed: 44 km/h (27.34 mph)
- Maximum glide ratio: 19 @ 64 km/h (34.56 kts / 39.77 mph)
- Rate of sink: 0.8 m/s (157.48 ft/min)
Armament
See also
References
- Taylor, J. H. (ed) (1989) Jane's Encyclopedia of Aviation. Studio Editions: London. p. 29
External links
- http://www.piotrp.de/SZYBOWCE/pis8.htm
- https://web.archive.org/web/20110822071404/http://mlp.h2.pl/zbiory_sz.php?ido=83&w=a
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