2 photos from Wikimedia Commons · credits & licences
- 1. SZD-21 Kobuz 3 'SP-2499' (16014048435): Alan Wilson from Stilton, Peterborough, Cambs, UK· CC BY-SA 2.0
- 2. SZD-21 Kobuz: Pysiekm· CC BY-SA 4.0
what is it?
The SZD-21 Kobuz was a single-seat aerobatic glider designed and built in Poland at Szybowcowy Zakład Doświadczalny (Glider Experimental Works) in Bielsko-Biała from 1958.
How to recognise it: mid wing · 14 m wingspan
base stats
Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).
fun facts
- First flew 65 years ago, in 1961.
- Top speed is 1.9× a car on the Dutch motorway (130 km/h).
- Wingspan of 14 m: about 3 cars parked nose to tail.
no engine: No engine: it glides on rising air.
spec sheet
- first flight
- 1961-06-03
- number built
- 32
- role
- glider
- origin
- Polish People's Republic
- makers
- Szybowcowy Zakład Doświadczalny
- engines
- none (glider)
- crew
- 1
- length
- 7.3 m
- wingspan
- 14 m
- height
- 1.9 m
- max take-off weight
- 401 kg
- top speed
- 250 km/h
- range
- —
- wings
- mid wing
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q7395312, Wikipedia: SZD-21 Kobuz (CC BY-SA 4.0).Updated 2026-10-24.