Schleicher ASK 21

AS21ICAOVFRTrainer
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The two-seat glider most clubs train on. Tough glass-fibre airframe, honest spin behaviour and approved for basic aerobatics.

Units

Performance

Never-exceed speed (VNE)
151 kt

Licence and training

Licences that cover it
LAPL(S) · SPL
Class rating
Sailplane (winch / aerotow launch)
Extra training or endorsements
None beyond the licence and rating.

EASA terms. Other authorities name and split ratings differently.

Flight rules and approvals

Flight rules
VFR only
Approvals
Aerobatics

Assumes the usual equipment. The aircraft's own documents decide what it may fly.

Type

Manufacturer
Schleicher
Category
Glider
Engines
No engine
ICAO type designator
AS21
Wake turbulence category
L · Light
In service since
1979

Weights and capacity

Max passengers
1
Minimum crew
1
Cockpit seats
2
Max take-off weight (MTOW)
600 kg
Empty weight
360 kg

Runway

Usable surfaces
Grass · Asphalt

No published runway figures for this type yet.

Cockpit and systems

Cockpit
Analog gauges

Scale drawing

Length
8.35 m
Wingspan
17 m
Height
1.55 m
Fuselage width
0.71 m

Drawn to scale from the published length, span and height; finer shapes are approximate.

Size comparison

  • Schleicher ASK 21Length 8.35 m
  • Glaser-Dirks DG-500 Elan TrainerLength 8.66 m

All drawn at one scale. The person is 1.8 m tall.

Speeds

20406080100120140160180KNOTS35VSO
  • Green arc: normal operating range
  • Red line: never exceed
35 kt
49 kt
97 kt
151 kt

Typical published values for the named variant, for learning only. Always fly with the aircraft's own flight manual (POH/AFM).

Fly the Schleicher ASK 21 in the simulator

Practise your radio calls with this aircraft type in the AI ATC simulator.