# N25C: 1949 Watts-Knight Twister 85B, registration cancelled 1975-05-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 8, 1975
- Status when cancelled: Valid registration
- Airframe: [Watts-Knight Twister 85B](https://openairdocs.org/model/watts-knight-twister-85b) (registry code 4970189)
- Serial number: 202
- Year built: 1949
- Type of aircraft: Fixed wing single engine
- Certificate issued: March 22, 1974
- Mode S code: A25557
- Owner when cancelled: [Amerson Doyle](https://openairdocs.org/faa-owner/AMERSON%20DOYLE)
- Location: [Mt Pleasant, TX](https://openairdocs.org/faa-place/TX/Mt%20Pleasant)
- Owner type: Individual
- Owner's area on the map: 33.2174° N, 94.9830° W: Placed by OpenAirDocs at the center of ZIP code 75455, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N25C
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=25C
- Page: https://openairdocs.org/deregistered/N25C-1975-05-08

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Watts-Knight Twister 85B: https://openairdocs.org/model/watts-knight-twister-85b.md

## 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 FTW75FRJ04](https://openairdocs.org/ntsb/FTW75FRJ04), Jul 20, 1974: Knight Twst 85B (N25C), Mt.Pleasant, TX, destroyed, 1 fatal
- [NTSB MIA66F0028](https://openairdocs.org/ntsb/MIA66F0028), Jun 26, 1965: Watts (N25C), Ft Lauderdale, FL, substantial damage

## Other aircraft with N25C

- [Registered now](https://openairdocs.org/aircraft/N25C): Thompson Hal H P H POWELL, S/N 02

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.