Avoiding yaw / broaching in following seas

Discussion in 'Powerboats' started by Mat-C, Feb 18, 2010.


  1. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Broaching is comparable to jack-knifing a truck trailer, a sudden heavy application of brakes ( analagous to the retardation of forward motion caused by ploughing the bow into the back of a big wave) on a greasy road has the back wanting to overtake the front, particularly if the resistance to side movement at the rear is compromised by a slippery road, or in a boat not much resistance to side movement by a small underwater hull/rudder profile aft. Both are nerve-wracking ! Deep vees with cutaway forefoots are pretty well broach free, for most practical purposes, although running into the sea, the ride suffers a little.
     
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