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Hey all,

 

Im installing a 912is and the aircraft has a header tank (with a vague manual). I've been thinking of directing the return line straight to the wing tank to minimize the possibility of air being fed into the header tank. Am I being too critical or is it good/fine routing to the header and then from the header to a wing tank?

 

Thanks!

  • Re: Return Line to Header or wing tank?

    by » 2 weeks ago


    Assuming that the header tank has a vent back to the main tank, returning fuel to the header is just fine.
    The header tank needs its own vent line or it will never be able to fill completely because the air will not have an escape route.
    Return the fuel/vapor to the header tank to a point that is ABOVE the Fuel Withdrawal Port to avoid recycling the vapor bubbles back to the engine.


    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Bill.Hertzel@Yahoo.com
    Clicking the "Thank You" is Always Appreciated.


    Thank you said by: Gareth Hitchings

  • Re: Return Line to Header or wing tank?

    by » 2 weeks ago


    The 912iS return fuel line passes a lot of fuel and directing it to a header tank is more advisable than a wing tank as it may over flow due to all the fuel put back into it.


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


    Thank you said by: Gareth Hitchings

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