# N847: 1917 Delackner Helicopters DH4, registration cancelled 1957-05-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 29, 1957
- Status when cancelled: Valid registration
- Airframe: [Delackner Helicopters DH4](https://openairdocs.org/model/delackner-helicopters-dh4) (registry code 2850202)
- Serial number: 9
- Year built: 1917
- Type of aircraft: Rotorcraft
- Certificate issued: May 10, 1957
- Mode S code: AB99D9
- Owner when cancelled: [De Lackner Helicopter Inc](https://openairdocs.org/faa-owner/DE%20LACKNER%20HELICOPTER%20INC)
- Location: [Mount Vernon, NY](https://openairdocs.org/faa-place/NY/Mount%20Vernon)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N847
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=847
- Page: https://openairdocs.org/deregistered/N847-1957-05-29

From the FAA registry file of October 29, 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 Delackner Helicopters DH4: https://openairdocs.org/model/delackner-helicopters-dh4.md

## Other aircraft with N847

- [Registered now](https://openairdocs.org/aircraft/N847): Piper PA-31-325, S/N 31-7812020, built 1977
- [Cancelled 1977-12-22](https://openairdocs.org/deregistered/N847-1977-12-22): Rockwell Commander 690A, S/N 11140. Owner: [J D Barter Construction Co Inc](https://openairdocs.org/faa-owner/J%20D%20BARTER%20CONSTRUCTION%20CO%20INC), [Greenboro, NC](https://openairdocs.org/faa-place/NC/Greenboro)
- [Cancelled 1930-02-14](https://openairdocs.org/deregistered/N847-1930-02-14): Standard J-1, S/N 106, built 1917. Owner: [Menefee Air Service](https://openairdocs.org/faa-owner/MENEFEE%20AIR%20SERVICE), [Richmond, VA](https://openairdocs.org/faa-place/VA/Richmond)

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