PROTECTING YOUR ULTRALIGHT AIRCRAFT PROPELLER
Propeller protection for ultralights and ultralight aircraft.
On certain model year Rotax 447 ultralight aircraft
engines the top engine cowls were aluminum. These
cowls were reported to crack, with pieces braking off and
exiting the ultralight aircraft into the propeller
Check the two top shrouds for cracks especially around
the exhaust manifold and intake manifolds if you have the
aluminum engine covers.
The solution is to replace the two covers, with the steel
covers that were used on the older 377 models.
These can be obtained on Ebay or any Ski-doo snowmobile dealer or snowmobile recyclers.
When replacing the covers it will be necessary to replace both the intake and exhaust gaskets as you will
have to remove both to install to install the new covers.
There are 4 exhaust gaskets and 4 intake gaskets, two located outside of the covers and two inside.
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