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From: Peter Rattenbury <ratten_at_uow.edu.au>
subject: [Paddlewise] Sailing Rudder on Klepper
Date: Thu, 22 Apr 2004 14:29:07 +1000
	Leigh et al...

	One research path could be to look at fins and rudders off old sailing
dinghies etc...  I have acquired what I would describe as a 'dagger plate'
off an old catamaran for $10 or so, hardwood, but nicely foil shaped and
about 400mm long and say 20mm wide at hull depth,  and tapering off.
	The cunning plan is to buy a new [or used ] rudder head without blade from
Klepper and shape the blade to the head.  This would be a fixed, ie,
non-retrievable blade,  for simplicity's sake  I sail a single  with what we
describe as a 'Tasmanian' rig,  probably best described as a lugsail,  which
probably does not generate the sort of power the traditional Klepper rig
would.  But the original river blade design of the Klepper certainly does
not cope too well with ocean conditions.
Cheers, PeterR, Wollongong.
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From: alex <al.m_at_3web.net>
subject: Re: [Paddlewise] Sailing Rudder on Klepper
Date: Thu, 22 Apr 2004 00:16:22 -0700
> One research path could be to look at fins and rudders off old sailing
> dinghies etc...  I have acquired what I would describe as a 'dagger plate'
> off an old catamaran for $10 or so, hardwood, but nicely foil shaped and
> about 400mm long and say 20mm wide at hull depth,  and tapering off.

Something tells me, it is either 200 mm wide, or 20 mm thick :-).  I like
this path.  Steve Isaak used it for his trimaran (Sunfish dingy rudder
blade):
http://www.watertribe.org/Magazine/October2000/Oct00IsaacRudderPage2.asp ,
and here is a home-made foil blade used for sailing Folbot GII, the boat is
very similar to Klepper II and with the same sails as Steve's trimaran:
http://206.40.48.186/uploads/RUDDERPROTOTYPE%20001(1).JPG - not sure if link
will work, may be you'll have to log on to Folbot forum -> Yachtclub ->
article "sailboys hand rudder controls".
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