# N11TW: 1969 Flug & Fahrzeugwerke DIAMANT 16.5

- Status: Valid registration
- Airframe: [Flug & Fahrzeugwerke DIAMANT 16.5](https://openairdocs.org/model/flug-fahrzeugwerke-diamant-16-5) (registry code 3550806, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G13EU](https://openairdocs.org/tcds/G13EU) (Flug- und Fahrzeugwerke Ag) (OpenAirDocs)
- Serial number: 051
- Year built: 1969
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, racing
- Airworthiness date: May 28, 1980
- Certificate issued: October 16, 2008
- Expires: July 31, 2028
- Mode S code: A02B98
- Registered owner: [Dunifer Charles P](https://openairdocs.org/faa-owner/DUNIFER%20CHARLES%20P)
- Location: [Salado, TX](https://openairdocs.org/faa-place/TX/Salado)
- Owner type: Individual
- Owner's area on the map: 30.9493° N, 97.6044° W: Placed by OpenAirDocs at the center of ZIP code 76571, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=11TW
- Page: https://openairdocs.org/aircraft/N11TW

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): 4 in force

### Matched by airframe (Flug & Fahrzeugwerke DIAMANT 16.5)

- [AD 81-12-51](https://openairdocs.org/ad/81-12-51): Rudder Close Tolerance Bolt · Flug- und Fahrzeugwerke Diamant 16.5 and HBV Diamant. Effective Oct 22, 1981
- [AD 81-16-01](https://openairdocs.org/ad/81-16-01): Wing Spar Cap · Flug- und Fahrzeugwerke Diamant 16.5. Effective Aug 6, 1981
- [AD 75-17-09](https://openairdocs.org/ad/75-17-09): Lower Harness Attachments · Flug- und Fahrzeugwerke Diamant 16.5 and HBV Diamant. Effective Aug 18, 1975
- [AD 75-16-19](https://openairdocs.org/ad/75-16-19): Rudder Jamming · Flug- und Fahrzeugwerke Diamant 16.5 and HBV Diamant. Effective Aug 12, 1975

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N11TW.

## FAA accident and incident reports

None matched to N11TW.

## 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 Flug & Fahrzeugwerke DIAMANT 16.5 aircraft: https://openairdocs.org/model/flug-fahrzeugwerke-diamant-16-5/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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