<<If the boom is too low or long, it cannot be eased out when you fly a hull.  Sitting high out of the water, pushing on the mainsheet as the boat capsizes is only fun the first time.  >>

  If the boom were wide and flat enough to serve as an end plate, would it be too ungainly or dangerous to handle (flat plane soaring across the deck when caught aback...)?   You'd need larger soft sail covers as compared to a boom that could contain the flaked sail, but that wouldn't be the end of the world.

  Or, could you have a boom that's wide and deep enough to contain the sail, but with a fabric "plate" that can be pulled taut to provide a level top surface when the sail is hoisted?  Would that be too inefficient?

  Just pondering out loud.

        - Mike
 
 
Rob Denney wrote:

 

Ta.  I intend to come down for a look as soon as it is ready to sail.  Hope to see the next gen electric motor (and you) then.

A thought on end plating the mainsail using a proa hull.  If the boom is too low or long, it cannot be eased out when you fly a hull.  Sitting high out of the water, pushing on the mainsheet as the boat capsizes is only fun the first time. 

rob

On Mon, Jun 6, 2011 at 10:46 PM, Rick Willoughby <rickwill@bigpond.net.au> wrote:

 

Rob

The sail measurements were slightly oversize so there is a bit of work to be done before they can be set properly.  

Peter is planning to have the fixes done within about 3 weeks if time permits.  We will not have the opportunity for another test with the drive until after that.  

The discussion on span efficiency came up while looking at what he has to do with the boom for the sails to fit.

He went sailing with the sail maker a week or two back to assess the sail problem so they have been up.

Rick