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Thread: Hydrofoils & fuel economy????

  1. #1
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    Default Hydrofoils & fuel economy????

    Back with another new guy question.
    This is again regarding my buddy's boat that I have access to the 50 weeks a year he's not using it. 21' Starcraft with twin 40hp Yamahas.
    Will installing hydrofoils generaly show any real increase in fuel economy?
    At same speed?
    By allowing you to cruise slower while staying on step?
    Thanks.
    Vance in AK.

    Matthew 6:33
    "But seek first the kingdom of God and His righteousness, and all these things shall be added to you."

  2. #2
    Member spoiled one's Avatar
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    I put one on an 18' Klamath with a 70 evinrude and it improved stability and kept the bow down while getting on step. It would also stay on plane at lower speeds. I never calculated economy, but the performance improved. I then installed them on a 24' Alaskan searunner with twin F100's. I used them as poor man's trim tabs. I did not like the way they perfomed, so I bit bullet and had trim tabs installed. Much better. So, I guess what I found was that it improved the feel and performance of a smaller, lighter boat, but it was not the way to go on the bigger boat.
    Spending my kids' inheritance with them, one adventure at a time.

  3. #3
    Member breausaw's Avatar
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    Iíll be putting the Permatrim hydrofoil on my new boat, gets rave reviews from c-dory owners.

    http://www.permatrimmarine.com/index.shtml
    Jay
    07 C-Dory 25 Cruiser
    OurPlayground.


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