B28 laminate layup with core

Discussion in 'Fiberglass and Composite Boat Building' started by Nova Rib, Jan 25, 2014.

  1. Nova Rib
    Joined: Jan 2014
    Posts: 1
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Stockholm

    Nova Rib New Member

    In Feb I will together with a friend start a project where two speedboats will be produced.
    The hull is B28 (ocke mannerfelt) but designed as a RIB.

    I'm looking for some assistance and advice in this issue......

    We do have the laminate layup schedule for the B24 singel skin but will now use Divinycell core. The resin will be Epoxi.

    is it a good idea to follow the B24 layup and add 20mm 160g core inbetween or should we do any changes?
    I'm mostly concerned about the hull and the steps (transverse). The ayup says 5500g/m2 and if we just add core it will be adt 2750g/m2 on eache side. Is it enough?? or should we add some due to it's 4 foot longer??
    Or is it maybe overkill sins we are using epoxi??

    Engines will be 2x250hp and speed hopefully 65+knots

    I just ordered the IMCI calc softwear and will see what that is.

    Would be happy to have some experienced experts input in this issue.:idea:

    /Alex
     
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