# Peterson Sailplane-Poly Ind. J-4

- Type: Aircraft model (FAA registry)
- Registry code: 6820502
- Manufacturer (registry): PETERSON SAILPLANE-POLY IND.
- Model: J-4
- Aircraft type: Glider
- Category: Glider
- Engines: None
- Seats: 1
- Weight class: Up to 12,499 lb
- Cruise speed: 67 mph
- Certification: Type certificated
- Data sheet: [TCDS G3WE](https://openairdocs.org/tcds/G3WE) (OpenAirDocs)
- Holder: Peterson Sailplane Corporation
- Registered aircraft: 1
- Page: https://openairdocs.org/model/peterson-sailplane-poly-ind-j-4

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## 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 (1)

- [N51FW](https://openairdocs.org/aircraft/N51FW): [Larson Martin B](https://openairdocs.org/faa-owner/LARSON%20MARTIN%20B), [Rapid City, SD](https://openairdocs.org/faa-place/SD/Rapid%20City), built 1976, S/N 005

## 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 LAX85LA386](https://openairdocs.org/ntsb/LAX85LA386), Sep 8, 1985: Peterson J-4 (N29899), Tucson, AZ, substantial damage
- [NTSB OAK76AP061](https://openairdocs.org/ntsb/OAK76AP061), Jul 6, 1976: Peterson J-4 (N2488P), Vacaville, CA, destroyed, 1 fatal

## 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 19850908043899A](https://openairdocs.org/incident/19850908043899A), Sep 8, 1985: Petson J4PETERSON (N29899), Tucson, AZ, Substantial damage. Glider student attempted to overfly an aircraft on the runway. Wingtip caught bush and aircraft cartwheeled.

## The same model under other registry codes

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

- [Piper J4](https://openairdocs.org/model/piper-j4): 15 registered aircraft, registry code 7100602
- [Peterson J4](https://openairdocs.org/model/peterson-j4): 1 registered aircraft, registry code 056030N
- [Rugg Erwin W J-4](https://openairdocs.org/model/rugg-erwin-w-j-4): 1 registered aircraft, registry code 056138P
- [Barnett J4](https://openairdocs.org/model/barnett-j4): 0 registered aircraft, registry code 05602D4
- [Sharp J-4](https://openairdocs.org/model/sharp-j-4): 0 registered aircraft, registry code 0570105
- [Peterson Sailplane J-4](https://openairdocs.org/model/peterson-sailplane-j-4): 0 registered aircraft, registry code 6820102

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