Schleicher ASK 21

what is it?

The ASK 21 is a glass-reinforced plastic (GRP) two-seat glider aircraft with a T-tail. The ASK 21 is designed primarily for beginner instruction, but is also suitable for cross-country flying and aerobatic instruction.

base stats

• speed 280 km/htop speed
• seats 2passengers
• size 600 kgmax take-off weight
• built 1,000made 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 47 years ago, in 1979.
• 🏎️Top speed is 2.2× a car on the Dutch motorway (130 km/h).
• 🚗Wingspan of 17 m: about 4 cars parked nose to tail.

no engine: No engine: it glides on rising air.

spec sheet

first flight

1979-02

introduced

1979

number built

1,000

role

two seater-class or club-class sailplane

origin

🇩🇪 Germany

makers

Alexander Schleicher GmbH & Co

engines

none (glider)

crew

1

passengers

2

length

8.4 m

wingspan

17 m

height

1.6 m

max take-off weight

600 kg

top speed

280 km/h

range

—

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.