N40KF - Thornberg Bradley Curtis Kitfox IV Aircraft Registration

FK9

THORNBERG BRADLEY CURTIS KITFOX IV

Aircraft Description

N40KF is a Thornberg Bradley Curtis KITFOX IV, a single-engine reciprocating (piston) aircraft registered to Pierce Charles A in Yelm, WA. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on August 25, 2009. The registration certificate was issued on June 25, 2008. The registration is set to expire on July 31, 2027. Powered by a Rotax 912UL engine producing 80 horsepower, N40KF is. The aircraft's Mode S transponder code is A4AB2F (hex), used for ADS-B identification and flight tracking. N40KF was last tracked by AviatorDB near Flying B Airport (8WA0) on March 1, 2026. The FAA registry record for N40KF was last updated on March 4, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Thornberg Bradley Curtis is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Thornberg Bradley Curtis aircraft currently registered in the FAA database, including the KITFOX IV model.

AviatorDB has found no NTSB accident or incident reports involving N40KF. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
Manufacturer
THORNBERG BRADLEY CURTIS
Model
KITFOX IV
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
FK9FK-9 Mk.IV
Weight Class
Up to 12,500 lbs
Airworthiness Date
August 25, 2009
Classification
Experimental 2 Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
June 25, 2008

Registered Owner

Name
PIERCE CHARLES A
Address
PO BOX 333
City
YELM
State / Zip Code
Washington98597-0333
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
ROTAX
Engine Model
912UL
Horsepower
80 HP
Mode S Code (Oct)
51125457
Mode S Code (Hex)
A4AB2F

Additional Details

Registration
N40KF
Serial Number
1563
Number of Engines
1
Number of Seats
2
Expiration Date
July 31, 2027
Last Action Date
March 4, 2023
Last Update Date
January 19, 2026
Unique ID
00773832

Last Known Position

Date
April 5, 2026 (UTC 19:14:59)
Airport
Latitude
46.877071
Longitude
-122.610014

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-04-01 01:32:20 UTC