Reference
Modification-No.
- 0 -
Page
28
Date
1996 05 10
Install
914 F
10.3) General directives for engine suspension
Rubber mounts to be used between engine and aircraft frame to neutralize vibrations.
Damping elements as generally used in the aircraft industry (e.g. LORD) are suitable.
See ill. 14.
◆ NOTE:
The illustration shows rubber mount Lord
33608-1 resp. 33608-2.
▲ WARNING:
All elements to balance out vibrations
have to be of captive design.
Stützscheibe
Zelle
cabin
Gummi
distance tube
support washer
shock mount
Distanzrohr
◆ NOTE: With suspension on the 4 top lugs 3L, 3R, 4L and 4R only, the tilting
moment due to the pull of the propeller will be avoided while, if
attached on the bottom lugs only, the moment of tilting has to be
taken care of accordingly.
▲ WARNING: The rubber mounts to neutralize vibrations and all the engine
suspension components not in the supply volume must be ground
run tested to the specified loads and for vibration behaviour. Certifi-
cation to the latest requirements such as FAR or JAR has to be
conducted by the aircraft builder.
◆ NOTE: The engine suspension has to be designed to prevent any excessive
engine movement and to minimize noise emission and vibration on
air frame side.
Ill. 14
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