[Rhodes22-list] For Roger

Kroposki kroposki@innova.net
Wed, 16 Oct 2002 11:15:41 -0400


Roger,
      In the past you have recommended several good books about sailing
which I have read.  Recently, Kip Hansen recommended to someone "Spray:
The Ultimate Cruising Boat" by R Bruce Roberts-Goodson.  I have recently
gotten this book and in reading his chapter on the technical aspects of
the "Spray" thought that Roger or Rik or Sam would appreciate this
discussion.  Have your read this book?
    If not, now that you have parked "Dynamic Equilibrium", you might
have time to do so.  While the original "Spray" was 28', he has modified
plans which have resulted in boats from 22' to over 40'.
    The discussion made me wonder if Stan checked things like 'center of
buoyancy', 'center of lateral resistance', 'center of effort', etc. and
their effect on a sailboat when he made that stretch model in his shop.
     And a now comes the question of the difference between the Standard
Sail Plan and the IMF.  Where does that put the center of effort?  What
effect on the curve of stability?  Did Phil Rhodes establish these
points on the original plans?
                       Ed K