Registry / Waco / UPF-7 / N39721

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N39721 V

Waco UPF-7 · 1942 · Chesterfield, MO

FAA Registry ↗ FlightAware ↗ FlightRadar24 ↗ ADS-B Globe ↗

This aircraft — FAA registration facts

N39721 is a 1942 Waco UPF-7 (serial 5854), registered to Crnic Paul C (individual) in Chesterfield, MO. Its FAA registration is recorded as v and expires October 2031; the airworthiness certificate dates from April 1947 (79 years ago). It carries a Cont Motor W670 SERIES engine rated at 250 hp, the engine on 77% of registered Waco UPF-7s. Its Mode-S transponder broadcasts the ICAO 24-bit address A49F82. It is one of 189 Waco UPF-7 aircraft on the FAA registry. Crnic Paul C holds 4 aircraft on the registry.

Registered owner
Crnic Paul C
Owner type
Individual
Based in
Chesterfield, MO
Serial number
5854
Year built
1942 · 84 yrs old
Airworthiness class
Standard – Normal
FAA status
V
Mode-S / ICAO24
A49F82 · 51117602 octal
Certificate issued
Oct 10, 2024
Airworthiness date
Apr 25, 1947
Last FAA activity
Oct 10, 2024
Registration expires
Oct 31, 2031
FAA region
3

Source: FAA aircraft registry (public record). Community reviews and photos below.

Engine on this aircraft

Engine
Cont Motor W670 SERIES
Engine type
Reciprocating (Piston)
Rated power
250 hp
Power per seat
125 hp
FAA engine code
17018

127 of the 165 registered Waco UPF-7 carry this engine (77%), across 13 engine variants on the type.

Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.

Community facts about N39721

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Flight history & live tracking

ICAO24: a49f82
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Aircraft Type — ACFTREF 9601302

Waco UPF-7
Engines: 1
Type: piston
Seats: 2
Cruise: 143 KTAS
Category: Standard

Engine — CODE 17018

Manufacturer: Cont Motor
Model: W670 SERIES
Type: Reciprocating (Piston)
Horsepower: 250 HP

FAA Registration Record

N-Number: N39721
Serial Number: 5854
Year Manufactured: 1942
ACFTREF Code: 9601302
Engine Code: 17018
Status: V (V)
Certification: Standard – Normal
Type Aircraft: Fixed Wing Single Engine (4)
Type Engine: Reciprocating (Piston) (1)
Source: master

Documents & resources

Commonly available reference sources for the Waco UPF-7. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Waco UPF-7 model overview, reviews & photos →

These are commonly available reference sources. FerryFlight Hub does not provide sample or generated documents on this page.

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Transponder / ADS-B

Mode S (octal): 51117602
ICAO 24-bit (hex): A49F82
ADS-B Exchange ↗ | FlightAware ↗

Registrant

Crnic Paul C
Individual
View all 4 aircraft registered to this owner →
14304 Spyglass Rdg
Chesterfield, MO, 630172140
FAA Region: 3

Key Dates

Certificate Issued Oct 10, 2024
Airworthiness Apr 25, 1947
Expiration Oct 31, 2031
Last Activity Oct 10, 2024
Data as of Nov 2, 2026

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Baldock Patrick M
1942
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R & R Aviation Supply Inc
1940
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Ulrich Philip J
1940
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Morozowsky Anthony M
1942
N151LP
Pietsch Warren A
N152E
Morozowsky John S
1940
N158E
Ferris Lyle C
1940
N164
Lcs Energy Inc
1940