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
N121GK

Kurtz Garold RV4

Valid Colorado

N121GK is a Kurtz Garold RV4, a fixed-wing airplane with one motor with a piston engine, built in 2003. It has 2 seats. It is registered to an individual in Loveland, Colorado. The registration is valid: it was issued on August 19, 2021 and expires on August 31, 2028. It holds an experimental airworthiness certificate for amateur built, dated March 12, 2003.

Aircraft

Maker
Kurtz Garold
Model
RV4
Serial number
2767
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Lycoming IO-360-L2A · 180 hp
Seats
2
Year built
2003
Kit
VANS AIRCRAFT INC RV-4
Transponder code
A05809 (octal 50054011)

Registration

Status
Valid registration
Certificate issued
August 19, 2021
Expires
August 31, 2028
Last FAA action
June 3, 2023
Airworthiness
Experimental · Amateur built · March 12, 2003
FAA region
Northwest Mountain
FAA record id
00031659

Owner as the FAA publishes it

Name
Book Thomas D
Type
Individual
Address
2908 Pronghorn Ct
Loveland, CO 80537-9068

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