N39725 - 1942 Waco UPF-7 Aircraft Registration

WACF

1942 WACO UPF-7

Aircraft Description

N39725 is a 1942 Waco UPF-7, a single-engine reciprocating (piston) aircraft registered to Diedrich Stephan A in Sandpoint, ID. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on June 8, 2007. The registration certificate was issued on August 18, 2017. The registration is set to expire on August 31, 2027. Powered by a Cont Motor W670-6A engine producing 220 horsepower, N39725 is. The aircraft's Mode S transponder code is A49F86 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N39725 was last updated on March 10, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Waco Aircraft Corporation produced a wide range of biplanes from the 1920s through 1940s. Waco biplanes are among the most sought-after vintage aircraft, with the YMF-5 being reproduced as a modern classic. AviatorDB tracks 678 Waco aircraft currently registered in the FAA database, including the UPF-7 model.

AviatorDB has found no NTSB accident or incident reports involving N39725. 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
1942
Manufacturer
WACO
Model
UPF-7
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
Cruise Speed
165 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
June 8, 2007
Classification
Standard Normal Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
August 18, 2017

Registered Owner

Name
DIEDRICH STEPHAN A
Address
PO BOX 1792
City
SANDPOINT
State / Zip Code
Idaho83864-0903
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
CONT MOTOR
Engine Model
W670-6A
Horsepower
220 HP
Mode S Code (Oct)
51117606
Mode S Code (Hex)
A49F86

Additional Details

Registration
N39725
Serial Number
5858
Number of Engines
1
Number of Seats
2
Expiration Date
August 31, 2027
Last Action Date
March 10, 2023
Last Update Date
January 19, 2026
Unique ID
00100784

Data Source

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

Last updated: 2026-06-15 01:32:20 UTC