Effectivity: 914 Series
Edition 2 / Rev. 0
d04276
page 39
July 01/2008
BRP-Rotax
INSTALLATION MANUAL
07618
271 mm (10.67 in.)
Ø 43
mm
(1.69 in.
B
Fig. 13
05385
Detail
B-B
P1
Axes
x axis
mm
y axis
mm
z axis
mm
-438 +211 -338
Tube end P1
11) Exhaust system
See Fig. 13.
The complete exhaust system is in the volume of supply and is certified together with the
engine.
▲ WARNING: If the ROTAX exhaust system is not employed or if modified, certification to
the latest requirements such as FAR or EASA has to be conducted by the
aircraft manufacturer.
Modifications are permissible only if agreed with by BRP-Rotax.
◆ NOTE: As an exception, the exhaust tail pipe can be modified to the following
requirements:
- Mean bending radius of an tail pipe: min. 40 mm (1.57 in.)
- Exhaust bend, inside diameter: min. 38 mm (1.50 in.)
- Medium tube length: max. 250 mm (10 in.)
- The insertion depth of the tail pipe into the muffler must be ensured (See Fig. 13/1).
■ CAUTION: At a medium tube length of 250 mm (10 in.) and more, the tail pipe must have
additional support.
Material of the exhaust system: X 15CrNiSi 20 (DIN 1.4828) (AISI 309)
Location of the exhaust tail pipe (P1)
See Fig. 13.
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