FEMA Modelltechnik
Böhler GmbH
Obere Rebbergstraße 11
D-77709 Wolfach
Tel.07834/303
Fax 07834/47735
FemaModelltechnik@gmx.de
Test reports / assembly instructions
--------------------------------Retractable undercarriages I Information for undercarriages
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A retractable undercarriage is essential for scale and semi-scale models. The "FEMA retractable undercarriages" are being used successfully for years and have demonstrated their ability in flight practice. Mr Gardemin wrote in his test report about retractable undercarriages:
» FEMA retractable undercarriages are without any technical paraphernalia but they are designed 100% functional and sturdy.«

We still feel obliged to this statement, now and
in future. The new generation of FEMA retractable undercarriages for large sail-planes is a logical development of the proven undercarriages which we have been producing since 1988.

The retractable undercarriages have the following outstanding features:
Reliable functions
- Bolt mechanisms on both final positions.
Highly efficient wheel brake - safety for model and operator.
Spring-loaded installation - for really soft touch-downs.
Robust attachment in the fuselage - between two plywood bulkheads.
Installation height in the fuselage is relatively variable .
Installation of 1 to 4 servos is easily possible
in connection with the servo holder (landing gear rudder, ????, vertical rudder and elevator rudder)
The
wheel frame made out of spring steel ensures a safe function of the ventral flaps.
A detailed instruction manual makes the installation as easy as possible.
With these retractable undercarriages, we set new standards concerning quality, modularity and price.

The undercarriages are available in four sizes
  • For models of the scale 2.0-2.8 for wheel diameter of 165, 152 and 140 mm, stock number 9800A.
  • For models of the scale 2.5-3.2 for a wheel diameter of 127 or 112mm, stock number 9810A.
  • For models of the scale 3.3-3.7 for a wheel diameter of 100 or 90mm, stock number 9820A.
  • For models of the scale 3.8-4.8 for a wheel diameter of 72 or 80mm, stock number 9830.