· ICAO24 3fee21· last seen 2d ago

D-MFFO is a B&F Technik Vertriebs GmbH FK9 Mark IV, a single-engine piston aircraft. SkyMeter has tracked 134 flights totalling 128 hours of airtime via ADS-B. The most frequent segment is DE-0197 to ETNG. Service window in our records spans 399 days. Of those flights, 14 (10.4%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The B&F Technik Vertriebs GmbH FK9 Mark IV has a maximum takeoff weight of 1,323 lb, light wake category.

About the B&F Technik Vertriebs GmbH FK9 Mark IV

The B&F Technik FK9 is a German-designed two-seat high-wing ultralight and light sport aircraft that has become one of Europe's most popular homebuilt and factory-built light aircraft since its introduction in the mid-1990s. Built by B&F Technik Vertriebs GmbH in Speyer, Germany, the FK9 Mark IV represents the latest evolution of a design optimized for simplicity, affordability, and excellent short-field performance. Its all-composite construction keeps empty weight around 290 kg (640 lb) while maintaining structural strength, and the spacious side-by-side cockpit offers better visibility than many competing designs thanks to its high-wing configuration and large Perspex canopy.

The FK9 is certified under both European ultralight regulations (472.5 kg MTOW) and as a Special Light-Sport Aircraft (S-LSA) in the United States, where it competes with American designs like the Flight Design CT and Tecnam P92. Powered by Rotax 912-series engines producing 80-100 horsepower, the FK9 cruises comfortably at 100-110 knots while sipping just 4-5 gallons per hour, and its low stall speed of 37 knots with full flaps makes it forgiving for student pilots and ideal for grass strips. The type's modular construction allows builder customization, and kits have been exported worldwide, though the majority of the fleet remains in Germany and Central Europe where ultralight aviation thrives.

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

FLIGHTS
134
all time
FLOWN HOURS
128
tracked time
📍
AIRPORTS VISITED
33
unique
📡
CALLSIGNS
1
41 routes
📅
SERVICE PERIOD
05/30/2025 → 07/04/2026
first → last
INCIDENT RATE
10.4%
14 flagged

Top routes

By flight count

10
2
2
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

B&F Technik Vertriebs GmbH FK9 Mark IV

Engines
Single Piston
Vref (approach)
50 kt
MTOW
1,323 lb
Wake category
L

Recent flights

Newest 50 operations of D-MFFO

50
07/04/2026
2h 0m
No alerts
07/04/2026
1h 52m
No alerts
06/20/2026
2h 44m
No alerts
06/19/2026
22m
No alerts
05/29/2026
1h 31m
No alerts
05/29/2026
1h 26m
No alerts
05/28/2026
2h 37m
No alerts
05/25/2026
1h 38m
△ Unstable approach
05/25/2026
1h 41m
No alerts
05/24/2026
23m
No alerts
05/24/2026
2h 40m
No alerts
05/01/2026
2h 22m
No alerts
05/01/2026
2h 22m
No alerts
05/01/2026
1h 42m
No alerts
04/25/2026
58m
No alerts
04/24/2026
36m
No alerts
01/17/2026
43m
No alerts
01/17/2026
42m
No alerts
12/28/2025
32m
△ Unstable approach
12/28/2025
46m
No alerts
12/22/2025
31m
No alerts
12/21/2025
40m
No alerts
12/16/2025
1h 16m
No alerts
12/16/2025
38m
△ Unstable approach
12/15/2025
29m
No alerts
11/22/2025
32m
No alerts
11/22/2025
36m
No alerts
11/07/2025
25m
No alerts
11/06/2025
23m
△ Unstable approach
11/06/2025
47m
△ Unstable approach
11/06/2025
46m
No alerts
09/28/2025
19m
No alerts
09/26/2025
39m
No alerts
09/13/2025
1h 1m
No alerts
09/12/2025
35m
No alerts
09/11/2025
24m
No alerts
09/07/2025
37m
△ Unstable approach
09/07/2025
48m
No alerts
09/06/2025
29m
No alerts
09/06/2025
40m
No alerts
09/03/2025
36m
No alerts
08/31/2025
7m
△ Unstable approach
08/30/2025
28m
No alerts
08/30/2025
28m
No alerts
08/07/2025
2h 55m
No alerts
07/31/2025
27m
No alerts
07/31/2025
2h 6m
No alerts
07/12/2025
37m
No alerts
07/12/2025
40m
No alerts
07/12/2025
1h 13m
No alerts
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