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Scheibe SF-25 E 'Superfalke'

Information supplied by Noël Rumers

After some major changes on the SF 25 C Falke, e.g. a stronger engine, a 2-wheel main landing gear and aerodynamic changes to the engine cowl, were made the desire for better soaring capability came.

Only with the further development from the SF25 C Falke to the SF 25 Super Falke, the result of best glide ratio was taken up from 24 to 29. This glide ratio was achieved by  aerodynamically better transition wing – fuselage, the gear covers where enlarged and the span was enlarged with 2.7m to 18m.

The large span was a problem to hangar this plane so the wing got a folding construction. Each wingtip folds down with 4m so the rest span is only 10m.

The fuselage is a cloth covered, welded steel tube construction. Wing, elevator and rudder are a wooden construction also covered with cloth. The inner section of the wing has two supporting wheels, so the folded wing E-Falke motor glider can easily be handled on the ground.


 3 - view drawing


Technical data:

Span

18,00 m

Landing gear:

Length

7,50 m

Main

1 wheel version
Empty weight

440 kg

Tail

1 wheel / none
Max. weight

650 kg

Wing

1LH/1RH
Best glide ratio

29  with engine stopped

Profiles

Mü  ( Scheibe )

Construction method:

Engine

Limbach SL /  L       65 to 80 PS

Fuselage

Steel tubes
Max. speed

190 km /h

Wing

Wood / fabric
Cruising speed

150 km / h

 Tail

Wood / fabric
Climb

2,3 m/sec.

 

Seating

2   next to each other

 Propeller:

Adjustable/  Fixt

Information: Falkenhorst

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Photos:    Buch, Sport und Reiseflugzeuge


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