turny transome , beach cat

Discussion in 'Boat Design' started by matt H., May 1, 2010.

  1. messabout
    Joined: Jan 2006
    Posts: 3,131
    Likes: 296, Points: 83, Legacy Rep: 1279
    Location: Lakeland Fl USA

    messabout Senior Member

    Your question, what makes a boat fast and safe. Taking the last one first; No boat is entirely safe. Recall the Titanic.

    What makes a boat fast is a question that has way too many answers. Are you talking about power boats, sailboats, or human powered boats? Each type has a set of design characteristics that tend toward speed or lack of it. If you are serious about learning, then I recommend this book: Hydrodynamics of High Speed Marine Vehicles by Odd M. Faltinsen, ISBN-0-521-84568-8 This a graduate level book that contains a gold mine of information that is backed by elaborate research, and sound mathematical science. A less strenuous but very informative book is; Sailing Theory and Practice by C.A. Marchaj. The Marchaj book may succeed in showing you that sailboats are steered by more elements than the rudder. Aside from the book or books, other sailors will show you that they can and often do steer the boat with no rudder input whatsoever. Rudders are for tacking and jybing. Trimming and balance are for steering if you want to maximize speed.

  2. matt H.
    Joined: Jan 2010
    Posts: 29
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: lake elsinore

    matt H. Junior Member

    I agree and disagree,
    as hull physics and hydro physics fundamentals change with varying speeds .

    certain speeds I'm quite sure? the sail positions steer the boat to a greater percentage than the rudder
    but I kinda think that once a certain speed is obtained
    the the dagger boards ( keel ) yield most control back to the rudder.

    thank you for your book suggestions much appreciated.:cool:
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.