# N3955: 1956 Hiller-Dart HJ-1 HORNET

- Status: Valid registration
- Airframe: [Hiller-Dart HJ-1 HORNET](https://openairdocs.org/model/hiller-dart-hj-1-hornet) (registry code 4360406, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 15
- Year built: 1956
- Type: Rotorcraft
- Engine type: Ramjet
- Airworthiness: Experimental, exhibition
- Airworthiness date: February 10, 1995
- Certificate issued: August 29, 2006
- Expires: August 31, 2028
- Mode S code: A49863
- Registered owner: [Classic Rotors Museum](https://openairdocs.org/faa-owner/CLASSIC%20ROTORS%20MUSEUM)
- Location: [Ramona, CA](https://openairdocs.org/faa-place/CA/Ramona)
- Owner type: Corporation
- Owner's area on the map: 33.0404° N, 116.8301° W: Placed by OpenAirDocs at the center of ZIP code 92065, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3955
- Page: https://openairdocs.org/aircraft/N3955

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Hiller-Dart HJ-1 HORNET)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N3955.

## FAA accident and incident reports

None matched to N3955.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Hiller-Dart HJ-1 HORNET aircraft: https://openairdocs.org/model/hiller-dart-hj-1-hornet/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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