What's the two ship design spiral other than Evans design spiral

Discussion in 'Boat Design' started by raventown, Nov 7, 2012.

  1. raventown
    Joined: Nov 2012
    Posts: 1
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: singapore

    raventown New Member

    and which year were they invented?
     
Loading...
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.