rik_elliott rik_elliott is offline

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  1. Commando C2
    hi
    How are you getting on with the zapcat and prop issues mentioned in the threads?
    I have a z10 zapcat with a 1985 mriner 40hp 2 stroke twin (yamaha engine really) and found the same problem with the cavitation if giving it quick acceleration from standstill.

    I had to feed in the power to stop it cavitating. In rough water such as coming intowards a beach and overtaking the waves it would spin up all the time. I was using the stock 13pitch prop.


    I am looking at semi cleaver props or ones off yamaha motors as they have a flat trailing edge blade on those props.
    i used hydro foil fins on my cav plate which helped with planing and less cavitation but found the best angle for the engine to be in the lowest trimmed hole, the first one nearest the transom, any higher and the cavitation would be more noticable.


    let me know how you have got on??

    regards
    nathan

About Me

  • About rik_elliott
    Country
    UK - England
    Boat length
    5m +
    Town
    Southampton
    Interest in RIBs
    Cruising, fishing
    Boat name
    Black Hole/aerotec
    Boat make
    Fletcher/bombard
    Engine(s)
    145hp merc/18hp toha

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  • Last Activity: 06 November 2016 03:18
  • Join Date: 27 June 2010


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