ZELIFF AVIATION LLC· ICAO24 a1e2f6· last seen 2d ago

N220WA is a Waco Aircraft Company YMF, a single-engine piston aircraft operated by ZELIFF AVIATION LLC. SkyMeter has tracked 70 flights totalling 33 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is K50F to KFTW. Service window in our records spans 21 days. Of those flights, 6 (8.6%) 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 3,000 lb, light wake category.

About the Waco Aircraft Company YMF

The Waco YMF is a modern recreation of the classic 1930s open-cockpit biplane, built by the revived Waco Aircraft Company starting in 1986. While the original Waco biplanes were workhorses of barnstorming and early commercial aviation, today's YMF series are handcrafted luxury sport aircraft that faithfully reproduce the golden-age flying experience with modern materials and safety standards. Each aircraft is built to order in Battle Creek, Michigan, featuring traditional fabric-covered steel tube fuselages, wooden wing spars, and the distinctive radial engine — typically a seven-cylinder Jacobs R-755 producing 275 horsepower.

The YMF's tandem open cockpits, generous wingspan, and docile handling make it a favorite for aerobatic training, scenic tours, and airshow demonstrations, offering pilots the rare opportunity to experience aviation as it was in the barnstorming era. With a cruise speed around 105 knots and a service ceiling near 14,000 feet, the YMF trades speed for character — this is an aircraft built for the joy of flying low and slow, feeling the wind and hearing the radial's unmistakable rumble. The type remains in limited production, with each airframe representing months of skilled craftsmanship and commanding prices well into six figures.

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

FLIGHTS
70
all time
FLOWN HOURS
33
tracked time
📍
AIRPORTS VISITED
15
unique
📡
CALLSIGNS
2
20 routes
📅
SERVICE PERIOD
06/13/2026 → 07/04/2026
first → last
INCIDENT RATE
8.6%
6 flagged

Top routes

By flight count

10
6
3
2
1
1
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Waco Aircraft Company YMF

Engines
Single Piston
Vref (approach)
55 kt
MTOW
3,000 lb
Wake category
L

Recent flights

Newest 35 operations of N220WA

35
07/04/2026
36m
No alerts
07/04/2026
38m
No alerts
07/04/2026
18m
No alerts
07/03/2026
43m
No alerts
07/02/2026
16m
No alerts
07/02/2026
2m
No alerts
07/02/2026
22m
△ Unstable approach
07/02/2026
18m
No alerts
07/02/2026
24m
No alerts
07/01/2026
15m
No alerts
07/01/2026
15m
No alerts
07/01/2026
15m
No alerts
07/01/2026
58m
No alerts
07/01/2026
58m
No alerts
06/30/2026
46m
No alerts
06/30/2026
5m
No alerts
06/30/2026
14m
No alerts
06/30/2026
32m
No alerts
06/30/2026
1h 30m
No alerts
06/30/2026
15m
No alerts
06/25/2026
16m
No alerts
06/25/2026
15m
No alerts
06/25/2026
16m
No alerts
06/24/2026
28m
No alerts
06/22/2026
33m
No alerts
06/22/2026
15m
No alerts
06/20/2026
32m
No alerts
06/16/2026
11m
No alerts
06/16/2026
13m
No alerts
06/15/2026
18m
△ Unstable approach
06/15/2026
38m
△ Unstable approach
06/15/2026
46m
No alerts
06/13/2026
58m
No alerts
06/13/2026
33m
No alerts
06/13/2026
12m
No alerts
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