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Thread: World Speed Record

  1. #11
    Join Date
    Nov 2004
    Location
    Napa Ca
    Posts
    1,245

    Default Re: World Speed Record

    Quote Originally Posted by CubersWrist View Post
    Boil off

    On a more serious note though, I do think boil off is a better bang for your buck on something like a spitfire or a P-40 versus a P-51 which already has a better radiator design.
    Packaging might be an issue. Paging Pete Law... Pete Law to the courtesy phone please...

    I've done a what if model of a Spitfire running a boil off and man does it look clean. I bet you could house one in a P-40, but I'm not sure there is enough room in a Spitfire.

    Will

  2. #12

    Default Re: World Speed Record

    Good point. The all-knowing wiki showed a Griffon model having 84 gallons in the main tanks. That's "only" 42 gal in one wing if convert that tank to water/ADI.

    Race #30 is using 30 gallons of water as is.
    "young" Thomas

  3. #13
    Join Date
    Jan 2018
    Location
    Derbyshire, UK
    Posts
    4

    Default Re: World Speed Record

    Boil off (or evaporative cooling if you prefer...) was designed in as the front of the wing ahead of the spar was intended for use as a steam tank. It was only embodied in the very first 'high speed' Spitfire, but the legacy carried over to production and proved useful; as some PR Spitfires later used it to carry fuel as a wet wing, 57 gal capacity each side. There's also a modification that was trialled for a 43 gallon tank behind the pilot seat.

    If you're not carrying the guns and ammunition, there's room to play with!
    Last edited by Rich W; 03-29-2019 at 01:03 PM.

  4. #14

    Default Re: World Speed Record

    30 gallons of water, how much ADI?

    Race #30 is using 30 gallons of water as is.[/QUOTE]

  5. #15
    Join Date
    Nov 2004
    Location
    Napa Ca
    Posts
    1,245

    Default Re: World Speed Record

    Sea racer



    Yes the wingtips are a bit large.

    Will

  6. #16
    Join Date
    May 2015
    Location
    FINLAND
    Posts
    156

    Default Re: World Speed Record

    Quote Originally Posted by RAD2LTR View Post
    Sea racer



    Yes the wingtips are a bit large.

    Will
    Pretty cool...tip might have a right direction to go.

  7. #17

    Default Re: World Speed Record

    Quote Originally Posted by georgiacub View Post
    30 gallons of water, how much ADI?

    Race #30 is using 30 gallons of water as is.
    [/QUOTE]

    #30 has a 10 gallon tank for ADI. (clarify the 30 gallons of water is capacity, we usually have some leftover after the race)
    "young" Thomas

  8. #18
    Join Date
    May 2015
    Location
    FINLAND
    Posts
    156

    Default Re: World Speed Record

    V-tail gives only 0,75 % more speed to an Me-109 G for instance.

    http://www.wwiiaircraftperformance.o...09/me109g.html



    That is 4 km/h !

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