Handy Engine Sizing Formula

Discussion in 'Diesel Engines' started by Bahama, Aug 13, 2010.

Page 2 of 2

  2. Easy Rider
    Joined: Oct 2009
    Posts: 920
    Likes: 46, Points: 0, Legacy Rep: 732
    Location: NW Washington State USA

    Easy Rider Senior Member

    larry larisky,
    I fully agree. I consider that to be the more or less the perfect power loading for my Willard after much experience with it. Eight tons X 4 = 32hp. I have 37hp and could do w a bit less. TAD's Yellow Cedar is optimized for low drag and hence gets by w less power per ton and of course something resembling a powered barge or a tug should require more but 4hp per ton just about covers the average full displacement boat. If your'e saying basically the whole question is as simple as "tons X 4" ... I basically agree.
    Fred,
    Yes. Well said. The idea of cruising at "hull speed" is fine for semi-disp boats like a GB but full disp boats should cruise well below.

    Easy
     
    Easy Rider, Aug 30, 2010
    #16
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