Effectivity: 914 Series
Edition 2 / Rev. 0
d04276
page 33
July 01/2008
BRP-Rotax
INSTALLATION MANUAL
10) Engine suspension and position
■ CAUTION: At installation of engine be aware of engine weight and assure careful
handling.
The engine suspension is determined essentially by the aircraft design. Eight attachment points
are provided on the engine (4 on engine and 4 on engine frame).
The engine will be supplied with a well tried and certified suspension frame for attachment on
the fire proof bulk head. The exhaust system and the turbo charger are supported on this frame
too. The installation into the aircraft is as generally practised by captive rubber mounts which
ensure also to balance out vibrations and sound from engine to aircraft frame.
▲ WARNING: If the engine suspension frame supplied by BRP-Rotax is not used or if
modified, certification to the latest requirements such as FAR or EASA has to
be conducted by the aircraft manufacturer.
Furthermore a suitable suspension for turbo charger and exhaust system has to be developed.
Since these components weigh approx. 6 kg (13 lbs), this suspension has to be carefully
designed and tested. Certification to the latest requirements such as FAR or EASA has to be
conducted by the aircraft manufacturer.
▲ WARNING: The hex. screws M10x60 (1) on the attachment points R2 and L2 are only used
for transport securing but must never be utilized for engine suspension. See
Fig. 8.
Therefore it is recommended to use the ROTAX engine suspension frame and the 4 stated
attachment points R2, L2, R3 and L3 .
▲ WARNING: At least 4 of the eight anchorage points must be used in a side symmetrical
pattern of the left (L) and right (R) side.
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