FK Aircraft
FK9
Peter Funk's enduring high-wing.

The FK9 has been Germany's practical high-wing ultralight for decades. Metal and composite mix, side-by-side seating, and Mk VI updates that keep it current as a club and touring machine.
Key figures
Max speed
205 km/h
Range
900 km
Engine
Rotax 912 ULS
Seats
2
Dimensions
Top view
Wingspan
9.4 m
Side view
Length
6.1 m
Height
2.2 m
Performance
Cruise
180 km/h
Max speed
205 km/h
Vne
221 km/h
Stall
65 km/h
Stall speed (clean)
73 km/h
Climb
5 m/s
Airframe
- Category
- ULM
- Wing
- High wing
- Seats
- 2
- Variant
- FK9 Mk VI
- First flight
- 1989
- Construction
- Metal and composite
- Materials
- Aluminium wing, composite fuselage
- Propeller
- Neuform ground-adjustable
- Status
- in production
General
- Propeller
Composite ground-adjustable, typical Rotax installation
Estimated · Manufacturer brochure / published figures
- Fuel
MOGAS 95 / 100LL
Likely · Manufacturer brochure / published figures
- Best glide ratio
11:1
Estimated · Manufacturer brochure / published figures
Weights
- Empty weight
290 kg
Likely · FK Lightplanes FK9
- Max takeoff weight
473 kg
Likely · FK Lightplanes FK9
- Useful load
183 kg
Estimated · Manufacturer brochure / published figures
- Fuel capacity
80 L
Likely · FK Lightplanes FK9
Powerplant
- Propeller
Composite ground-adjustable, typical Rotax installation
Estimated · Manufacturer brochure / published figures
- Fuel
MOGAS 95 / 100LL
Likely · Manufacturer brochure / published figures