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  • Re: Rotax 912iS Fuel Pump positioning

    by » 6 years ago


    Thanks a lot Glenn !

  • Re: Rotax 912iS Fuel Pump positioning

    by » 6 years ago


    Hi Glenn,

    Looking good. Post a picture when the engine's on.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


  • Re: Rotax 912iS Fuel Pump positioning

    by » 6 years ago


    Hi Roger,
    photo's below. The Aircraft is finished (in Feb) arrived in May and i have 100 hrs on it so far. I love the IS engine, starts easily, runs smoother than the carbed engines and I get good fuel economy (15.1 L/hr @100kts IAS).
    IMG_0058.JPG (You do not have access to download this file.)
    DSCN9519.JPG (You do not have access to download this file.)
    DSCN9525.JPG (You do not have access to download this file.)

  • Re: Rotax 912iS Fuel Pump positioning

    by » 6 years ago


    Hi Glenn, nice lookin plane. I noticed your air filter is on the inside of the engine, is it not collecting hot air into the system, reducing efficiency? I am test flying aircraft up here in China and when i arrived they had the filter installed inside like yours. I made them make a new cowl with scoop and filter and hose to intake.Is yours working ok? i hope i havent made them do unnecessary mods.I assumed the engine would be more efficient with out side air. it gets ver hot under that cowl. Appreciate yours and any one elses comments. Ta

  • Re: Rotax 912iS Fuel Pump positioning

    by » 6 years ago


    The engine will run better with cool dry air. Depending on where you live that may not be possible like Hot humid climates that never cool or because their cowl isn't setup for outside air. Many do have the air filters open and obtaining warm air from inside the cowl. This makes them run a little rich and more or less in carb ice prevention all the time. The engine runs just fine. If you can get the cool dry air great and if not just enjoy your flying and don't loose any sleep over it.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


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