NACE JON, NACE JUDITH· ICAO24 a135e6· last seen 2d ago

N17721 is a Waco Aircraft Company YMF, a single-engine piston aircraft operated by NACE JON, NACE JUDITH. SkyMeter has tracked 114 flights totalling 69 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is 3C1 to 3C1. Service window in our records spans 370 days. Of those flights, 12 (10.5%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Waco Aircraft Company YMF has a maximum takeoff weight of 2,650 lb, light wake category.

About the Waco Aircraft Company YMF

The Waco YMF is a modern recreation of the classic American open-cockpit biplane, built by the revived Waco Aircraft Company in Battle Creek, Michigan since 1986. While the original Waco biplanes dominated barnstorming and early commercial aviation in the 1920s and 1930s, today's YMF faithfully captures that golden-age aesthetic with contemporary materials and powerplants—typically a Jacobs R-755 radial engine producing 275 horsepower, though some variants use the Continental W-670. The aircraft seats two in tandem configuration with dual controls, making it popular for aerobatic training, warbird enthusiasts, and nostalgic sightseeing operations.

The YMF's performance envelope reflects its heritage: a cruise speed around 105 knots, a never-exceed speed of 158 knots, and a stall speed as low as 42 knots with full flaps. Maximum takeoff weight is 2,650 pounds, and the biplane configuration delivers exceptional slow-flight handling and short-field capability. The aircraft's robust steel-tube fuselage and fabric-covered wings follow traditional construction methods, though modern avionics and safety features bring it into compliance with current certification standards. With its distinctive radial engine rumble and classic lines, the YMF remains one of the few production biplanes still manufactured today.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
114
all time
FLOWN HOURS
69
tracked time
📍
AIRPORTS VISITED
24
unique
📡
CALLSIGNS
2
28 routes
📅
SERVICE PERIOD
06/28/2025 → 07/04/2026
first → last
INCIDENT RATE
10.5%
12 flagged

Top routes

By flight count

10
3C1 3C1
15
3C1 KEKM
3
KGSH 3C1
2
3C1 K3TR
2
3C1 KGSH
2
1
1
1
K3TR 3C1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Waco Aircraft Company YMF

Engines
Single Piston
Vref (approach)
55 kt
MTOW
2,650 lb
Wake category
L

Recent flights

Newest 50 operations of N17721

50
07/04/2026
41m
No alerts
06/28/2026
17m
△ Unstable approach
06/28/2026
12m
△ Unstable approach
06/19/2026
59m
No alerts
06/19/2026
22m
No alerts
06/19/2026
1h 10m
No alerts
06/13/2026
12m
No alerts
06/07/2026
50m
No alerts
05/25/2026
32m
No alerts
05/10/2026
38m
No alerts
05/02/2026
20m
No alerts
05/02/2026
3m
No alerts
05/02/2026
2m
No alerts
05/02/2026
21m
No alerts
04/25/2026
31m
No alerts
04/25/2026
21m
No alerts
04/23/2026
23m
No alerts
04/17/2026
28m
No alerts
04/11/2026
30m
No alerts
04/03/2026
12m
No alerts
04/03/2026
9m
No alerts
03/21/2026
24m
No alerts
03/19/2026
37m
No alerts
03/14/2026
47m
No alerts
03/09/2026
1h 0m
No alerts
03/08/2026
59m
No alerts
11/23/2025
39m
No alerts
11/23/2025
21m
No alerts
11/13/2025
57m
No alerts
11/06/2025
23m
No alerts
11/06/2025
23m
No alerts
10/25/2025
33m
No alerts
10/11/2025
26m
△ Unstable approach
10/11/2025
27m
No alerts
10/10/2025
43m
No alerts
10/03/2025
14m
△ Unstable approach
10/03/2025
12m
△ Unstable approach
09/19/2025
44m
No alerts
09/18/2025
50m
No alerts
09/16/2025
1h 12m
No alerts
09/14/2025
33m
No alerts
09/12/2025
22m
No alerts
09/08/2025
42m
No alerts
09/06/2025
48m
No alerts
08/31/2025
31m
No alerts
08/24/2025
25m
No alerts
08/24/2025
20m
No alerts
08/23/2025
22m
No alerts
07/23/2025
1h 35m
△ Unstable approach
07/23/2025
2h 56m
No alerts
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