# Jonker Sailplanes JS3

- Type: Aircraft model (FAA registry)
- Registry codes: 05637Y4, 05638VE
- Manufacturer (registry): JONKER SAILPLANES (PTY) LTD
- Model: JS3
- Aircraft type: Glider
- Category: Glider
- Engines: None
- Seats: 1
- Weight class: Up to 12,499 lb
- Certification: Not type certificated
- Registered aircraft: 22
- Page: https://openairdocs.org/model/jonker-sailplanes-js3

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. The FAA lists this model under more than one registry code, usually for different spellings of the maker. This page covers them all.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (22)

- [N11AA](https://openairdocs.org/aircraft/N11AA): [Adams Aland B](https://openairdocs.org/faa-owner/ADAMS%20ALAND%20B), [Fort Collins, CO](https://openairdocs.org/faa-place/CO/Fort%20Collins), built 2019, S/N 03-031
- [N11UC](https://openairdocs.org/aircraft/N11UC): [Das Air Inc](https://openairdocs.org/faa-owner/DAS%20AIR%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2019, S/N 03-054
- [N122NH](https://openairdocs.org/aircraft/N122NH): [Howe Nelson B Trustee](https://openairdocs.org/faa-owner/HOWE%20NELSON%20B%20TRUSTEE), [Marlborough, NH](https://openairdocs.org/faa-place/NH/Marlborough), built 2022, S/N 03-122
- [N133MS](https://openairdocs.org/aircraft/N133MS): [Whitehead Harry Cassels Jr](https://openairdocs.org/faa-owner/WHITEHEAD%20HARRY%20CASSELS%20JR), [Wilsonville, AL](https://openairdocs.org/faa-place/AL/Wilsonville), built 2016, S/N 03-002
- [N163JS](https://openairdocs.org/aircraft/N163JS): [Ruegger Engineering Co](https://openairdocs.org/faa-owner/RUEGGER%20ENGINEERING%20CO), [Thompsons Station, TN](https://openairdocs.org/faa-place/TN/Thompsons%20Station), built 2019, S/N 03-033
- [N183JS](https://openairdocs.org/aircraft/N183JS): [Wingate Gordon R](https://openairdocs.org/faa-owner/WINGATE%20GORDON%20R), [Houston, TX](https://openairdocs.org/faa-place/TX/Houston), S/N 03-108
- [N233S](https://openairdocs.org/aircraft/N233S): [Sliwa Steven M](https://openairdocs.org/faa-owner/SLIWA%20STEVEN%20M), [Genoa, NV](https://openairdocs.org/faa-place/NV/Genoa), built 2022, S/N 03-138
- [N315MM](https://openairdocs.org/aircraft/N315MM): [Thermal Navigator LLC](https://openairdocs.org/faa-owner/THERMAL%20NAVIGATOR%20LLC), [Green Cove Springs, FL](https://openairdocs.org/faa-place/FL/Green%20Cove%20Springs), built 2019, S/N 03-052
- [N31BL](https://openairdocs.org/aircraft/N31BL): [Butler Charles R III](https://openairdocs.org/faa-owner/BUTLER%20CHARLES%20R%20III), [Mobile, AL](https://openairdocs.org/faa-place/AL/Mobile), built 2016, S/N 03-001
- [N33GW](https://openairdocs.org/aircraft/N33GW): [Morrissey Mark](https://openairdocs.org/faa-owner/MORRISSEY%20MARK), [Prescott, AZ](https://openairdocs.org/faa-place/AZ/Prescott), built 2019, S/N 03-034
- [N33ZL](https://openairdocs.org/aircraft/N33ZL): [Leonard David](https://openairdocs.org/faa-owner/LEONARD%20DAVID), [Parker, CO](https://openairdocs.org/faa-place/CO/Parker), built 2023, S/N 03-148
- [N35XC](https://openairdocs.org/aircraft/N35XC): [Murphy Rebecca L](https://openairdocs.org/faa-owner/MURPHY%20REBECCA%20L), [Elmira, NY](https://openairdocs.org/faa-place/NY/Elmira), built 2020, S/N 03-094
- [N369QT](https://openairdocs.org/aircraft/N369QT): [Qt Solutions LLC](https://openairdocs.org/faa-owner/QT%20SOLUTIONS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 03-069
- [N39AB](https://openairdocs.org/aircraft/N39AB): [Aero Systems Associates LLC](https://openairdocs.org/faa-owner/AERO%20SYSTEMS%20ASSOCIATES%20LLC), [San Carlos, CA](https://openairdocs.org/faa-place/CA/San%20Carlos), built 2019, S/N 03-051
- [N543FS](https://openairdocs.org/aircraft/N543FS): [Incorpfin Ltd](https://openairdocs.org/faa-owner/INCORPFIN%20LTD), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 2019, S/N 03-053
- [N66VH](https://openairdocs.org/aircraft/N66VH): [Clayton Thomas J](https://openairdocs.org/faa-owner/CLAYTON%20THOMAS%20J), [Parker, CO](https://openairdocs.org/faa-place/CO/Parker), S/N 03-071
- [N68MF](https://openairdocs.org/aircraft/N68MF): [Sumner John](https://openairdocs.org/faa-owner/SUMNER%20JOHN), [Savannah, GA](https://openairdocs.org/faa-place/GA/Savannah), built 2022, S/N 03-136
- [N70JT](https://openairdocs.org/aircraft/N70JT): [Trojanowski Jan](https://openairdocs.org/faa-owner/TROJANOWSKI%20JAN), [Ocala, FL](https://openairdocs.org/faa-place/FL/Ocala), S/N 03-072
- [N84BY](https://openairdocs.org/aircraft/N84BY): [Lachot Bruce J](https://openairdocs.org/faa-owner/LACHOT%20BRUCE%20J), [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale), S/N 03-070
- [N913GK](https://openairdocs.org/aircraft/N913GK): [Kelley Glen A](https://openairdocs.org/faa-owner/KELLEY%20GLEN%20A), [Bedford, NH](https://openairdocs.org/faa-place/NH/Bedford), built 2021, S/N 03-107
- [N9172T](https://openairdocs.org/aircraft/N9172T): [Rogers Walter A](https://openairdocs.org/faa-owner/ROGERS%20WALTER%20A), [Palmdale, CA](https://openairdocs.org/faa-place/CA/Palmdale), built 2019, S/N 03-032
- [N951DG](https://openairdocs.org/aircraft/N951DG): [Granzow Jared D Trustee](https://openairdocs.org/faa-owner/GRANZOW%20JARED%20D%20TRUSTEE), [Powell, OH](https://openairdocs.org/faa-place/OH/Powell), S/N 03-068

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR26LA299](https://openairdocs.org/ntsb/WPR26LA299), Aug 8, 2026: Jonker Sailplanes JS3 (N9172T), Tehachapi, CA, substantial damage, investigation ongoing
- [NTSB ERA25LA354](https://openairdocs.org/ntsb/ERA25LA354), Sep 13, 2025: Jonker Sailplanes JS3 (N68MF), New Castle, VA, substantial damage. Probable cause: The pilot’s failure to properly configure the glider for landing, which resulted in an excessive descent rate during approach, and subsequent collision with trees short of the intended landing area.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20250913012779A](https://openairdocs.org/incident/20250913012779A), Sep 13, 2025: Jonker Sailplanes (Pty) Ltd JS3 (N68MF), New Castle, VA, Substantial damage. On August 13, 2025, at 13:52 local time and in VFR weather, glider [privacy data omitted] a Jonker JS3 rapture with jet engine, returned from flight into right…

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Jon Staudacher JS3](https://openairdocs.org/model/jon-staudacher-js3): 1 registered aircraft, registry code 056400A
- [Steed JS-3](https://openairdocs.org/model/steed-js-3): 0 registered aircraft, registry code 056012S

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