Glidersaerobatic glider
IS-4 Jastrząb
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The IS-4 Jastrząb (Instytut Szybownictwa – gliding institute) was a single-seat aerobatic glider designed and built in Poland from 1949.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
- Manufacturer
- Szybowcowy Zakład Doświadczalny
- Category
- Gliders
- Country of origin
- Poland
- First flight
- 1949-12-21
Specifications
- Cruise speed
- 110 kt
- Max speed
- 240 kt
- Max takeoff weight
- 787 lb
- Empty weight
- 529 lb
- Seats
- 1
- Length
- 20.5 ft
- Wingspan
- 39.3 ft
- Height
- 4.3 ft
- Number built
- 37
Specifications are approximate and may vary by variant. Compiled from Wikipedia (CC BY-SA).
Reference and training only. Specifications vary by variant — consult the manufacturer and the official documents.