Staging copy. The live site is at https://staging.data.eflight.com.
eFlight RegistryFAA data, updated daily
Registered aircraft · FAA record as of September 25, 2026
N42MR

Robertson R1U1

Valid Kansas

N42MR is a Robertson R1U1, a fixed-wing airplane with one motor with a piston engine, built in 1971. It has 2 seats. It is registered to co-owned owners in Usysses, Kansas. The registration is valid: it was issued on April 24, 2002 and expires on January 31, 2030. It holds an experimental airworthiness certificate for amateur built, dated June 12, 1981.

Aircraft

Maker
Robertson
Model
R1U1
Serial number
529-42-2453
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Franklin 4A235 SERIES · 135 hp
Seats
2
Year built
1971
Cruising speed
85 mph
Transponder code
A4FA69 (octal 51175151)

Registration

Status
Valid registration
Certificate issued
April 24, 2002
Expires
January 31, 2030
Last FAA action
September 30, 2023
Airworthiness
Experimental · Amateur built · June 12, 1981
FAA region
Central
FAA record id
00671664

Owner as the FAA publishes it

Name
Neidert Melvin E
Type
Co-owned
Address
3850 W Road 8
Usysses, KS 67880
Co-owners
Neidert Darla D

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