N121WW

2021 Arensmeyer Walter W SA-300 STARDUSTER TO

Fixed-wing, single engine · serial 001

Valid registration

Registered with the FAA until Jan 31, 2029.

Registered owner

Arensmeyer Michael W

Owner type
Individual
Location
Longmont, CO

Registered to an individual. The FAA lists people last name first. We show the city and state only; the full mailing address is in the FAA's own record.

Aircraft

Year built
2021
Serial number
001
Type
Fixed-wing, single engine · Land
Engines
1 × Piston · Lycoming IO-360-C1D6 · 200 hp
Seats
2
Weight class
Up to 12,499 lb
Certification
Amateur-built or kit (not type certificated) · Experimental airworthiness (issued May 2, 2026)
Mode S code
A05972 (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since
Jan 15, 2022 · last FAA action Nov 19, 2025

Past registrations of N121WW

N-numbers are reused. Each line is an earlier registration, ending on the date the FAA canceled it.

  • Jun 28, 2013 2007 Cessna 172S · serial 172S10453 Aviation Marketing Group Inc · Charlotte, NC · exported to CHILE