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  1. Mpetrel
    Post

    Bertram 42 prop

    Now top speed 20/21knots I have 2 prop 4 blades in stock next week i will try them We will see what happen
    Post by: Mpetrel, Jun 22, 2016 in forum: Bertram Yacht
  2. Mpetrel
    Post

    Bertram 42 prop

    2:1 gear ration WOT RPM 2350 No tower Weight 38000 lbs
    Post by: Mpetrel, Jun 22, 2016 in forum: Bertram Yacht
  3. Mpetrel
    Thread

    Bertram 42 prop

    hello I have a bertram 1981 42ft in Guadeloupe frensh west indies We repower the boat with 6v92 550hp each Today we have 3 blades prop 30x30 i...
    Thread by: Mpetrel, Jun 21, 2016, 13 replies, in forum: Bertram Yacht
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