Aerospool Wt9 Dynamic (WT9)
i
ICAO WT9 Small

Aerospool Wt9 Dynamic

Single Piston

The Aerospool WT9 Dynamic is a Slovak-designed two-seat ultralight and Light Sport Aircraft that has become popular across Europe and North America since its introduction in the late 1990s. Built by Aerospool in Prievidza, Slovakia, the WT9 features a low-wing configuration with a composite fuselage and fabric-covered wings, offering an efficient blend of performance and economy for sport pilots and flight training operations. The aircraft typically uses Rotax 912-series engines producing 80-100 horsepower, giving it a cruise speed around 115 knots and a range exceeding 600 nautical miles on modest fuel burn. What distinguishes the WT9 in the crowded LSA market is its European pedigree combined with excellent handling characteristics and a relatively spacious cockpit for the category. The type meets both European ultralight regulations and U.S. LSA certification requirements, making it one of the few designs that successfully bridges both markets. Its low stall speed of 37 knots in landing configuration and docile flight characteristics have made it a favorite for ab-initio training, while the cruise performance appeals to cross-country sport pilots. The aircraft's 1,320-pound maximum takeoff weight places it at the upper limit of the LSA category, allowing for practical payload with full fuel. SkyMeter has tracked 567 flights across 149 airframes and 2 operators, with AIRCRAFT PARTNER HOLDINGS INC TRUSTEE the largest observed operator.

ACTIVE AIRFRAMES
149
last 7 days
🏢
OPERATORS
2
unique airlines
📊
FLIGHTS
567
tracked
AVG DURATION
39m
per flight
INCIDENT RATE
4.6%
26 flagged

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
55 kt
Vref range
Vmo
Mmo
Vne
151 kt
Vno
130 kt
Vs0 (landing)
37 kt
Vfe
70 kt
Approach category
A

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
Light

Weight & identification

Operating limits

MTOW
1,322 lb
MALW
Manufacturer model
Aerospool WT9 Dynamic
FAA designator
WT9
Registered

Top operators

By fleet size · last 7 days

1

Safety profile

Flagged flights · last 7 days

Family

Related variants

0

No related variants.

Recent incidents

Flagged flights of WT9

20
08/22/2026
26m
△ Low approach-stability score
08/22/2026
44m
△ Low approach-stability score
08/22/2026
2h 8m
△ Low approach-stability score
08/21/2026
26m
△ Low approach-stability score
08/21/2026
56m
△ Low approach-stability score
08/21/2026
50m
△ Low approach-stability score
08/21/2026
44m
△ Low approach-stability score
08/21/2026
2h 1m
△ Low approach-stability score
08/21/2026
1h 38m
△ Low approach-stability score
08/19/2026
1h 35m
△ Low approach-stability score

Recent flights

Real flights of WT9 · airborne ≥ 20 min

30
08/22/2026
31m
No alerts
08/22/2026
36m
No alerts
08/22/2026
42m
No alerts
08/22/2026
46m
No alerts
08/22/2026
24m
No alerts
08/22/2026
31m
No alerts
08/22/2026
35m
No alerts
08/22/2026
34m
No alerts
08/22/2026
27m
No alerts
08/22/2026
19m
No alerts
08/22/2026
22m
No alerts
08/22/2026
1h 26m
No alerts
08/22/2026
25m
No alerts
08/22/2026
1h 8m
No alerts
08/22/2026
44m
No alerts
08/22/2026
1h 30m
No alerts
08/22/2026
19m
No alerts
08/22/2026
20m
No alerts
08/22/2026
41m
No alerts
08/22/2026
53m
No alerts
08/22/2026
2h 2m
No alerts
08/22/2026
20m
No alerts
08/22/2026
53m
No alerts
08/22/2026
1h 29m
No alerts
08/22/2026
42m
No alerts
08/22/2026
36m
No alerts
08/22/2026
51m
No alerts
08/22/2026
23m
No alerts
08/22/2026
26m
△ Low approach-stability score
08/22/2026
1h 22m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)