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Thread: E10 not for aircraft

  1. #1
    Join Date
    May 2006
    Location
    Canberra
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    E10 not for aircraft

    Noticed signs on the E10 bowser at United Fyshwick stating not to be used in aircraft. Most aircraft use either Avgas or Jeta1 so I assume it must be some types of ultralight. Given that lower concentrations of alcohol in petrol do not need to be labelled then can any form of petrol be used?
    My stepson was flying a Daimond DA42. In Europe they offer a diesel motor but I do not know which fuel they use.

  2. #2
    Join Date
    Nov 2007
    Location
    South Coast, NSW
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    870

    Re: E10 not for aircraft

    the reason is that ethanol and blends are hydroscopic ( absorb water) and makes the chances of water in fuel greater and harder to detect. (pilots check for water contamination before EVERY flight)
    Hope this helps.
    Cheers
    Nick.
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  3. #3
    Join Date
    Jul 2008
    Location
    Coolah
    Posts
    3

    Re: E10 not for aircraft

    Howdy, first post here, but I fly and have followed this topic a bit The diesel aircraft engines coming out now use jet A1, though I believe they can use diesel or similar also. They are not as intolerant to alternate fuels as the avgas spark ignition aircraft engines.

    The use of auto fuel was legally permitted in some low compression aircraft engines, but this permission specifically excluded any fuel with alcohol. Not only for the hygroscopic reason above, but due to aicraft fuel systems and tank sealants etc not being able to withstand the alcohol. The lower vapour pressure of auto fuel is also a problem inthe often antiquated aircraft fuel sytems contributing to vapour lock, which can be fatal if it happens at the wrong time!

    This being said, there are aircraft flying on pure ethanol and blends around the world. Brazil has done a lot of work on it, and an aerobatic team flys on pure ethanol in the US. Obviously, they have done there homework.

    cheers,

    Grant

  4. #4
    Join Date
    May 2006
    Location
    Canberra
    Posts
    83

    Re: E10 not for aircraft

    The reason I brought this up is not all fuel containing ethanol is labelled as such. ie below 5%.
    I was reading that the company producing the diesel engines (based on a VW motor) has gone bust leaving people with those aircraft in a spot of trouble.
    http://www.avweb.com/avwebflash/news..._198391-1.html
    Last edited by smokey2; 9th August 2008 at 04:20 PM.

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