United States aircraft registry
N121U
1947 AERO C-104
Fixed-wing single-engine · Reciprocating
- Year manufactured
- 1947
- Engine manufacturer
- SUPERIOR
- Registration status
- Valid
- Registration expires
- Aug 31, 2029
Registered owner
SCHAFHAUSEN MARK G
IndividualSPOKANE, Washington · United States
Registered mailing location
The registered owner may differ from the operator. Mailing location does not identify the aircraft’s base or current position.
Aircraft specifications
- Manufacturer / model
- AERO / C-104
- Serial number
- 215
- Aircraft type
- Fixed-wing single-engine
- Engine model
- XP-0-360B1AC2
- Engine type
- Reciprocating
- Engines
- 1
- Seats (type reference)
- 1
- Mode S / ICAO hex
- A0592B
Registry specifications may differ from the aircraft’s current configuration.
Registration details
- Registration country
- United States
- Certificate issued
- Feb 17, 1977
- Expiration date
- Aug 31, 2029
- Registrant type
- Individual
- Fractional ownership
- No
Certification & additional details
- Classification
- Experimental
- Airworthiness certificate date
- Jul 23, 2013
- Aircraft category
- Land
- Mode S (octal)
- 50054453
- Last registry activity
- Aug 25, 2023
Registry certificate information does not establish current airworthiness. Registry activity is not flight activity.
Source: FAA Aircraft Registry · Dataset refreshed 2026-11-01. Registration details can change. Map centered on the registered ZIP-code area, not an exact address. Private onboard avionics and connectivity data are not included.