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  1. #1
    Member
    Join Date
    Mar 2011
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    Abbott, TX
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    139

    rake and cupping

    when a prop has aggressive rake, what is that referring to physically on the prop?

    And i am guessing cupping is actually forming of the blades to cup a little to add a little pitch?

    thanls

  2. RIP Evinrude 1907-2020 JR19's Avatar
    Join Date
    Feb 2005
    Location
    Columbia, KY
    Posts
    12,658
    #2
    The definition of cupping can be found here...

    http://www.marksprops.com/faq.html

    I did not see anything about rake but there is educational information in the definition and frequently ask question sections.

  3. Moderator 21XDC's Avatar
    Join Date
    Sep 2004
    Location
    Westland Michigan
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    63,434
    #3
    Rake is the angle that the blades are "Raked" back

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html

  4. Member
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    Jan 2016
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    Bangs, TX
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