Subject: Re: [harryproa] Una Rig
From: "Rob Denney" <>
Date: 3/7/2006, 8:24 PM

The 64 dollar question!  First, we will try sailing harry and Visionarry with only the main and see how it works.  Should not be a problem, but needs to be checked.  If there is a balance problem, then a wing mast would be a partial (maybe complete) solution as it moves the centre of effort forward, probably quite a distance vs a rig with a large round mast.  Next thing to try is raking the mast forward (easy with a wing, less easy with a round tube) which will move the coe forward and if the mast is sitting on a stub mast (which is vertical), it will also reduce the sheeting loads.  At the expense of a peculiar looking rig, maybe with upwind deficiencies, maybe with interesting structural problems. 
The wing mast on Elementarry will sit on a stub mast, and have variable rake so we shall see.
----- Original Message -----
From: David Howie
Sent: Wednesday, March 08, 2006 2:56 AM
Subject: Re: [harryproa] Una Rig

How would you translate this to a full size Harry? Would you take it up to
similar sail area to the original? i.e. one big mast instead of two small

------ Original Message ------
Received: Mon, 06 Mar 2006 11:29:24 PM MST
From: "Rob Denney" <>
To: <>
Subject: Re: [harryproa] Una Rig


Cut a hole in the side of the hull, put in a mast tube and used one of the
existing rigs.  Next step is to build a wing mast, as soon as the materials

Sail area is 11 sqm.  Sailed on the weekend in 5-12 knots. Went past a Nacra
18sq and a Hobie 17 downwind (both seemed to be trying pretty hard) and was
pointing as high and as fast upwind, although I was a fair way behind them so
the speed may not be correct.  They were trapezing, I was sitting in the
middle of the tramp, so could definitely use some more power.


  ----- Original Message -----
  From: oceanplodder2003
  Sent: Tuesday, March 07, 2006 12:13 PM
  Subject: [harryproa] Una Rig

  Did you simply put one of the existing ( schooner  )rigs in the middle
  or did you increase the size to try and match sail areas??

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