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#1813

SZD-21 Kobuz

Polish People's Republic ·first flew 1961· glider

SZD-21 Kobuz, photo 1 of 2
1/2 Alan Wilson from Stilton, Peterborough, Cambs, UK· CC BY-SA 2.0

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

  • speed 250 km/htop speed
  • size 401 kgmax take-off weight
  • built 32made in total

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.

stan runge ef9524a source