The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Models · Jonker Sailplanes · Gliders · data as of October 2, 2026

Jonker Sailplanes JS1

16 on the U.S. register across 5 versions the FAA records separately. Built from 2007 to 2017; half of them date from 2015 or earlier. New Hampshire has the most (3). 6% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.

About the JS1 from the FAA's model table

Type
Glider · Gliders
Power
None
Common engines
Ama/Expr Unknown Eng (7), None None (5), M&D Flugze Md-Tj42 (1)
Seats
1
Maker on the register
Jonker Sailplanes
Registered
earliest certificate August 19, 2009; newest May 25, 2026

Where they are owner's state

New Hampshire3Texas2Nevada2New Mexico2Colorado2Montana1Kansas1Georgia1Connecticut1California1

Who owns them registrant type

Individual13 (81%)Co-owned2 (12%)LLC1 (6%)

Versions as the FAA records them · click one to list only those aircraft

VersionRegisteredBuiltShare
JS1-C82012 to 201750.0%
JS 1B3201118.8%
JS1C 18/2122015 to 201712.5%
JS 1A22007 to 200912.5%
JS1C1—6.2%

When they were built by decade · 3 with no year on file

03681122000112010

Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far

0012220132015201720182019202020212024202512026

Registration status

Valid16 (100%)

Airworthiness certificate class

Experimental12 (75%)None on file4 (25%)

Biggest operators companies, schools and clubs

Lee Aviation LLC1

Accident history NTSB records · 1 cases since 1982, 1 fatal

2019-08-07CEN19FA253 · JS1C N213DT · accident near Cotulla, TX · 1 killed

The 1 most recent of 1 cases where the NTSB's make and model match this family's versions. Rates per registered aircraft, phases of flight and causes are coming with the analytics stage. Each aircraft's own page also shows its record.

Questions people ask answers refresh every morning

How many Jonker Sailplanes JS1 aircraft are registered in the U.S.?

16 as of October 2, 2026, counting 5 versions the FAA records separately.

Which state has the most Jonker Sailplanes JS1s?

New Hampshire, with 3.

Who owns the Jonker Sailplanes JS1?

6% 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 · 2 JS1C 18/21 (all versions)

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N390JB Jonker Sailplanes
JS1C 18/21
Co-owned owner
New Hampshire
Experimental 2020-08-17 Valid
N108K Jonker Sailplanes
JS1C 18/21
Individual owner
Texas
Experimental 2018-12-21 Valid