PROTECTING YOUR ULTRALIGHT AIRCRAFT PROPELLER
Aircraft Propellers protecting your prop! Section Index 1 2 3 4 5 6 7 8 9 10 11 12
Propeller  protection for ultralights and ultralight aircraft. All ultralight aircraft flying with an airfilter that has a chrome cap such as those shown here should be updated to the Rotax style of airfilter that DOES NOT have the chrome cap. It has been reported that the cap which is glued on to the airfilter has come off in flight. In a pusher configuration this can be very dangerous. Another advantage of switching the the newer style of airfilter is that the area where the cap would normally be is now rubber, which will flex and bend if the airfilter happens to come off. The new style Rotax air filter also has tabs which can be used to safety wire the filter onto the carburators. On dual carburated engines it is recommended that the dual airfilter be used instead of two single air filters. The dual airfilter helps support the carbs, and has a closer profile to the engine meaning that not as much weight is exerted on the carb intake sockets.

         

        

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Ultralight aircraft pusher propeller protection.
Ultralight News
Covering the world of ultralight aviation
To an air filter that has a rubber end cap. It has a rubber end piece and safety wire tabs. This airfilter has tabs to secure the filter to the carburators. To the air filter that is all rubber with no metal end cap. Note how the safety wire goes under the clamp to secure everything if the filter comes off. BUT with it while the airfilter is still attached, the metal clamps can still go through the propeller.
Rotax Air Filter for single carb engines.
Rotax Air Filter for dual carb engines.
Conventional way to safety wire air filters note clamps can still exit into prop.
Suggested way to safety wire air filters note that safety wire goes UNDER clamp preventing it from going into prop.
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These come are glued on and come off - which can cause severe damage to your ultralight propeller. These come are glued on and come off - which can cause severe damage to your ultralight propeller. This is the style of airfilter to use on single carburator ultralight aircraft engines. This is the style of airfilter to use on dual carburator ultralight aircraft engines. Conventional way of safety wiring ultralight engine airfilters to carbs. This is the style of airfilter to use on single carburator ultralight aircraft engines. These come are glued on and come off - which can cause severe damage to your ultralight propeller. 9 9