United States aircraft registry
N121WW
2021 ARENSMEYER WALTER W SA-300 STARDUSTER TO
Fixed-wing single-engine · Reciprocating
- Year manufactured
- 2021
- Engine manufacturer
- LYCOMING
- Registration status
- Valid
- Registration expires
- Jan 31, 2029
Registered owner
ARENSMEYER MICHAEL W
IndividualLONGMONT, Colorado · 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
- ARENSMEYER WALTER W / SA-300 STARDUSTER TO
- Serial number
- 001
- Aircraft type
- Fixed-wing single-engine
- Engine model
- IO-360-C1D6
- Engine type
- Reciprocating
- Engines
- 1
- Seats (type reference)
- 2
- Mode S / ICAO hex
- A05972
Registry specifications may differ from the aircraft’s current configuration.
Registration details
- Registration country
- United States
- Certificate issued
- Jan 15, 2022
- Expiration date
- Jan 31, 2029
- Registrant type
- Individual
- Fractional ownership
- No
Certification & additional details
- Classification
- Experimental
- Airworthiness certificate date
- May 2, 2026
- Aircraft category
- Land
- Mode S (octal)
- 50054562
- Last registry activity
- Nov 19, 2025
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.