· ICAO24 7cc525· last seen Feb 2026

24-4258 is a Stemme S10-VT, a single-engine piston aircraft — likely a private operator. SkyMeter has tracked 12 flights totalling 5 hours of airtime via ADS-B. The most frequent segment is YMYB to YHBA. Of those flights, 2 (16.7%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Stemme S10-VT has a maximum takeoff weight of 1,874 lb, light wake category.

About the Stemme S10-VT

The Stemme S10 is a high-performance motor glider built by Germany's Stemme GmbH, combining the soaring efficiency of a sailplane with the self-launch capability of a powered aircraft. First flown in 1986, the S10 pioneered the use of a retractable propeller and turbocharged Rotax engine mounted behind the cockpit, driving a folding two-blade prop that tucks flush into the fuselage for pure gliding flight. With a wingspan of 23 meters and a glide ratio exceeding 50:1, the S10 can climb under power to altitude, shut down the engine mid-flight, and soar for hours on thermals or ridge lift—then restart aloft and motor home.

This dual capability made it popular for cross-country soaring, aerial survey, and pilot training in Europe. The S10-VT variant added a turbocharged Rotax 914 engine for better high-altitude performance and a slightly refined cockpit. Stemme later developed the S12 and S15 with even longer wings and composite refinements, but the S10 remains the most widely recognized model.

Its unique retractable propulsion system and exceptional L/D ratio set it apart from conventional light aircraft and pure gliders alike. SkyMeter has tracked flights across airframes and operators, with distinct routes observed.

FLIGHTS
12
all time
FLOWN HOURS
5
tracked time
📍
AIRPORTS VISITED
9
unique
📡
CALLSIGNS
1
6 routes
📅
SERVICE PERIOD
01/31/2026 → 02/06/2026
first → last
INCIDENT RATE
16.7%
2 flagged

Top routes

By flight count

3
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Stemme S10-VT

Engines
Single Piston
Vref (approach)
65 kt
MTOW
1,874 lb
Wake category
L

Recent flights

Newest 6 operations of 24-4258

6
02/06/2026
22m
No alerts
02/05/2026
28m
No alerts
02/05/2026
35m
△ Unstable approach
02/04/2026
17m
No alerts
02/01/2026
14m
No alerts
01/31/2026
22m
No alerts
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