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  1. #1
    WacoNut's Avatar
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    DLE-30 Fuel Tank Size?

    Hi Guys,
    I am building a 25% Gee Bee "Y" from Henry Haffke plans. I am installing a DLE-30 engine in the plane and was wondering what would be a good size tank for this plane for say a 15min flight? I am having to move the firewall back about 1.5" so the available space is getting smaller.

    Also I want to hide the ignition behind the dummy radial and I do not think it will get much airflow, is this a concern for the ignition?

    I have 3 other larger gassers and did not have to worry about these issues.
    Thanks!!
    Anthony
    WACO Brother #30 Cub Brother #17
    It's not the hours you put in It's what you put into the hours.

  2. #2

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    RE: DLE-30 Fuel Tank Size?

    Hi,

    engine should burn about an ounce a minute at full throttle.


    Elson
    Using this Hobby for Science (aerobiology)

  3. #3
    WacoNut's Avatar
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    RE: DLE-30 Fuel Tank Size?

    Thanks for the tip!!
    Anthony
    WACO Brother #30 Cub Brother #17
    It's not the hours you put in It's what you put into the hours.

  4. #4

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    RE: DLE-30 Fuel Tank Size?

    I have a DLE 30 in a 3DHS 72" Extra330SC with a 12oz tank.

    Flight timer is 12 minutes and I land with 1/2 tank of fuel. IMAC style flying
    Airplanes have expiration dates. Its just not printed anywhere on them.
    Im not really an airplane pilot; but I did stay at a Holiday Inn Express last night.

  5. #5
    WacoNut's Avatar
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    RE: DLE-30 Fuel Tank Size?

    Thanks,
    I think I have enough room for a 14oz tank. The tank will be located right about the CG.

    Can the ignition be mounted behind the firewall or is this a bad idea? I am wanting to put a Williams Brothers dummy 1/4 scale Wasp radial up front and this will not leave anywhere to put the ignition on the face of the firewall. I can probably add some cheater holes to get air thru the firewall to the ignition and it will have an open cockpit to help the airflow.
    Anthony
    WACO Brother #30 Cub Brother #17
    It's not the hours you put in It's what you put into the hours.

  6. #6
    MetallicaJunkie's Avatar
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    RE: DLE-30 Fuel Tank Size?

    id say 6-10, 12 if you are reluctant to go any smaler ..theres no need for more. i went from a 32 oz on my 3w80 to a 20 ounce and i can fly enough...same thing on my 50cc birds.. i went from 24 ounce tanks to 16 ounce tanks and i can fly mostly WOT for 8 minutes and have more than enough gas when i land


    you'll be surprised at how little fuel our gas engines burn engines

    according to the 3 wisemen, the ignition must be at least 12" from the receiver. ive done less and range checked ok...
    \"Propellers are notorious for inflicting serious bodily harm while vigorously defending their space\" George Aldrich

  7. #7
    WacoNut's Avatar
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    RE: DLE-30 Fuel Tank Size?

    Thanks!!
    I have a 24oz in my 33% Cub with a YDA-56 and a 32oz in my 33% Waco with a 3W-157. I seem to always have a half tank or better when landing.

    I am not concerned about interference with the ignition as much as it getting too hot. I am sure I will be able to get the receiver plenty far enough away from the ignition. I am not sure how much heat if any the ignition generates under normal use?
    Thanks!!
    Anthony
    WACO Brother #30 Cub Brother #17
    It's not the hours you put in It's what you put into the hours.

  8. #8
    MetallicaJunkie's Avatar
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    RE: DLE-30 Fuel Tank Size?

    from what ive heard, the 3w ignitions are can get warm and are more sensitive to heat... but thats just hearsay because i havent actually felt my ignitions after i run them... TOM is a wise-man(wiseguy) maybe he knows [8D]
    \"Propellers are notorious for inflicting serious bodily harm while vigorously defending their space\" George Aldrich

  9. #9

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    RE: DLE-30 Fuel Tank Size?


    ORIGINAL: WacoNut

    Thanks!!
    I have a 24oz in my 33% Cub with a YDA-56 and a 32oz in my 33% Waco with a 3W-157. I seem to always have a half tank or better when landing.

    I am not concerned about interference with the ignition as much as it getting too hot. I am sure I will be able to get the receiver plenty far enough away from the ignition. I am not sure how much heat if any the ignition generates under normal use?
    Thanks!!
    Anthony
    I wouldn't compare the tank requirement for something like a GeeBee to that of a light wing loading aerobatic plane. A guy can pretty much depend on making a landing everytime with the lighter plane but a heavier scale plane might take a few landing approaches and go arounds from time to time before one is happy setting it down. I'd always go with a slightly larger tank in a scale plane.

    I wouldn't worry too much about putting the ignition behind the firewall. This is a fairly common practice (no other choice really) in smaller planes without much room between the firewall and the prop. I would think it would stay cooler behind the firewall than it would in a hot cowling. Again, aerobatic planes usually have a huge box structure behind the engine where batteries and ignition boxes can be mounted .... not so in many more scale planes.

  10. #10
    WacoNut's Avatar
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    RE: DLE-30 Fuel Tank Size?

    Thanks for the tips guys,
    I will most likey go with a 16oz tank. I think I can fit that without any issues. There should be ample room for the ignition behind the firewall as well. I am thinking my plane will be nose heavy so the batteries/revceiver etc will most likely move aft.
    Thanks Again!!
    Anthony
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    WACO Brother #30 Cub Brother #17
    It's not the hours you put in It's what you put into the hours.


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