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Registered aircraft · FAA record as of September 25, 2026
N121K

Keim Midget Mustang M-1

Valid Kansas

N121K is a Keim Midget Mustang M-1, a fixed-wing airplane with one motor with a piston engine, built in 1972. It has 1 seat. It is registered to an individual in Hesston, Kansas. The registration is valid: it was issued on July 4, 2024 and expires on July 31, 2031. It holds an experimental airworthiness certificate for amateur built, dated May 30, 1980.

Aircraft

Maker
Keim Midget Mustang
Model
M-1
Serial number
334
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Cont Motor IO-200 · 115 hp
Seats
1
Year built
1972
Cruising speed
112 mph
Transponder code
A0584A (octal 50054112)

Registration

Status
Valid registration
Certificate issued
July 4, 2024
Expires
July 31, 2031
Last FAA action
July 4, 2024
Airworthiness
Experimental · Amateur built · May 30, 1980
FAA region
Central
FAA record id
00420400

Owner as the FAA publishes it

Name
Swartzendruber Brett
Type
Individual
Address
10300 NW 72Nd St
Hesston, KS 67062-9279

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data