Schleicher ASK-21
43 on the U.S. register. Built from 1982 to 2006; half of them date from 1986 or earlier. California has the most (6). 84% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.
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About the ASK-21 from the FAA's model table
- Type
- Glider · Gliders
- Power
- None
- Common engines
- None None (36), Ama/Expr Unknown Eng (4)
- Seats
- 2
- Maker on the register
- Schleicher
- Registered
- earliest certificate March 5, 1984; newest September 30, 2026
Where they are owner's state
California6New York5Alabama5Virginia3Georgia3Tennessee2Oregon2Ohio2Minnesota2Illinois2Washington1Vermont1
Who owns them registrant type
Corporation31 (72%)LLC5 (12%)Co-owned4 (9%)Individual3 (7%)
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| ASK-21 | 43 | 1982 to 2006 | 100.0% |
When they were built by decade · 9 with no year on file
Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far
Registration status
Valid43 (100%)
Airworthiness certificate class
Standard40 (93%)None on file2 (5%)Experimental1 (2%)
Biggest operators companies, schools and clubs
Civil Air Patrol INC3Hollister Soaring Center LLC2Harris Hill Soaring CORP2Eagleville Soaring INC2Civil Air Patrol2Windy City Soaring Association INC1Valley Soaring Club INC1Utah Soaring Association1Texas Soaring Association INC1Southern California Soaring Academy INC1Soaring Society Of Dayton INC1Soaring Society Of Dayton1
Fleet pages: Civil Air Patrol INC · Hollister Soaring Center LLC · Harris Hill Soaring CORP · Civil Air Patrol · Valley Soaring Club INC · Texas Soaring Association INC · Southern California Soaring Academy INC · Soaring Society Of Dayton INC
Accident history NTSB
Each aircraft's own page already shows its NTSB accident and incident record. The model-wide record (accidents per year, fatal and non-fatal, against the number registered) is being added; it will appear here.
Questions people ask answers refresh every morning
How many Schleicher ASK-21 aircraft are registered in the U.S.?
43 as of October 2, 2026, counting 1 version the FAA records separately.
Which state has the most Schleicher ASK-21s?
California, with 6.
Who owns the Schleicher ASK-21?
84% are registered to companies, flight schools, clubs and other organisations; the rest to individuals and co-owners, who are never named on this site.
Aircraft newest certificates first · 43
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N421SL | Schleicher ASK-21 |
Individual owner California |
Standard | 2026-09-30 | Valid |
| N361KS | Schleicher ASK-21 |
Individual owner California |
Standard | 2026-09-27 | Valid |
| N221SB | Schleicher ASK-21 |
Low Country Soaring Association Ridgeland, South Carolina |
Standard | 2026-02-21 | Valid |
| N363KS | Schleicher ASK-21 |
Beta Fleet LLC South Burlington, Vermont |
Standard | 2025-11-10 | Valid |
| N794KS | Schleicher ASK-21 |
Albatross Aviation Hawaii LLC Waialua, Hawaii |
Standard | 2025-07-15 | Valid |
| N315KS | Schleicher ASK-21 |
Silvercreek Glider Club New Douglas, Illinois |
Standard | 2025-06-11 | Valid |
| N121WT | Schleicher ASK-21 |
Co-owned owner California |
Standard | 2025-03-18 | Valid |
| N21QU | Schleicher ASK-21 |
Utah Soaring Association Mapleton, Utah |
Standard | 2024-09-11 | Valid |
| N341KS | Schleicher ASK-21 |
Skyline Soaring Club INC Front Royal, Virginia |
Standard | 2024-08-28 | Valid |
| N110BL | Schleicher ASK-21 |
Blue Ridge Soaring Society New Castle, Virginia |
Standard | 2024-06-03 | Valid |
| N594KS | Schleicher ASK-21 |
Individual owner Washington |
Standard | 2023-10-05 | Valid |
| N179KS | Schleicher ASK-21 |
Hollister Soaring Center LLC Hollister, California |
Standard | 2023-09-07 | Valid |
| N694KS | Schleicher ASK-21 |
Southern California Soaring Academy INC Valencia, California |
Standard | 2023-01-16 | Valid |
| N128KS | Schleicher ASK-21 |
Co-owned owner New Mexico |
Standard | 2021-02-25 | Valid |
| N521SL | Schleicher ASK-21 |
Nfm Enterprises LLC Wurtsboro, New York |
Standard | 2020-08-20 | Valid |
| N314KS | Schleicher ASK-21 |
Black Forest Soaring Society Monument, Colorado |
Standard | 2020-08-10 | Valid |
| N221JH | Schleicher ASK-21 |
Hood River Soaring INC Hood River, Oregon |
Standard | 2020-08-06 | Valid |
| N2237W | Schleicher ASK-21 |
Eagleville Soaring INC Eagleville, Tennessee |
Standard | 2016-11-16 | Valid |
| N804KL | Schleicher ASK-21 |
Hollister Soaring Center LLC Hollister, California |
Experimental | 2016-10-17 | Valid |
| N120DW | Schleicher ASK-21 |
Arizona Soaring INC Maricopa, Arizona |
Standard | 2015-06-26 | Valid |
| N83MN | Schleicher ASK-21 |
Minnesota Soaring Club Stanton, Minnesota |
Standard | 2013-06-06 | Valid |
| N121FL | Schleicher ASK-21 |
Eagleville Soaring INC Eagleville, Tennessee |
None on file | 2011-08-25 | Valid |
| N474KS | Schleicher ASK-21 |
Valley Soaring Club INC Middletown, New York |
Standard | 2010-11-09 | Valid |
| N21HN | Schleicher ASK-21 |
Co-owned owner New Jersey |
None on file | 2008-09-23 | Valid |
| N955TS | Schleicher ASK-21 |
Texas Soaring Association INC Midlothian, Texas |
Standard | 2006-11-14 | Valid |
| N30BR | Schleicher ASK-21 |
Blue Ridge Soaring Society INC New Castle, Virginia |
Standard | 2006-01-10 | Valid |
| N521CC | Schleicher ASK-21 |
Soaring Society Of Dayton Waynesville, Ohio |
Standard | 2005-11-17 | Valid |
| N674KS | Schleicher ASK-21 |
Co-owned owner Minnesota |
Standard | 2005-08-04 | Valid |
| N129KS | Schleicher ASK-21 |
High Desert Soaring Club INC Bend, Oregon |
Standard | 2004-01-14 | Valid |
| N972AF | Schleicher ASK-21 |
Civil Air Patrol Maxwell Afb, Alabama |
Standard | 2003-12-08 | Valid |
| N975AF | Schleicher ASK-21 |
Civil Air Patrol Maxwell Afb, Alabama |
Standard | 2003-12-08 | Valid |
| N121WC | Schleicher ASK-21 |
Windy City Soaring Association INC Hinckley, Illinois |
Standard | 2003-01-22 | Valid |
| N621MG | Schleicher ASK-21 |
Mid-Georgia Soaring Association Monroe, Georgia |
Standard | 2002-05-08 | Valid |
| N221CC | Schleicher ASK-21 |
Soaring Society Of Dayton INC Waynesville, Ohio |
Standard | 2001-09-27 | Valid |
| N621CP | Schleicher ASK-21 |
Civil Air Patrol INC Maxwell Afb, Alabama |
Standard | 2000-05-18 | Valid |
| N574KS | Schleicher ASK-21 |
Finger Lakes Soaring Club INC Dansville, New York |
Standard | 2000-03-09 | Valid |
| N521HH | Schleicher ASK-21 |
Harris Hill Soaring CORP Horseheads, New York |
Standard | 2000-03-03 | Valid |
| N521CP | Schleicher ASK-21 |
Civil Air Patrol INC Maxwell Afb, Alabama |
Standard | 1999-08-17 | Valid |
| N612MG | Schleicher ASK-21 |
Mid-Georgia Soaring Association INC Monroe, Georgia |
Standard | 1998-07-06 | Valid |
| N221CP | Schleicher ASK-21 |
Civil Air Patrol INC Maxwell Afb, Alabama |
Standard | 1998-06-04 | Valid |
| N374KS | Schleicher ASK-21 |
Ask Flyers INC Hogansville, Georgia |
Standard | 1995-05-12 | Valid |
| N91HH | Schleicher ASK-21 |
Harris Hill Soaring CORP Horseheads, New York |
Standard | 1991-02-07 | Valid |
| N21AF | Schleicher ASK-21 |
Adrian Soaring Club Ypsilanti, Michigan |
Standard | 1984-03-05 | Valid |