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From: Tord <tord_at_mindless.com>
subject: [Paddlewise] Seaworthy
Date: Mon, 22 Feb 2010 16:43:28 -0500
Our Klepper XXL  would be much less seaworthy if
they didn't have a mizzen and a leeboard, as
with them you can point the boat where-ever
you want and it will not turn down-wind, or
up-wind, unless you don't want it to!

Sailing downwind I guess the rudder is essential,
but you could do as well using your paddle,
I guess.

The XXL being roughly 2 ft longer than the Aerius II,
but with the XXL weighing more than 10 lbs more, and
having a few sq. ft more wetted area, one would
think it would be slower, but not so.

The XXL is about 10% faster, with the same load, same
the paddlers, paddles, and similar circumstances.

Where things differ, is windage, so using the leeboard
with the XXL is more essential, than with the Ae II,
but both are extremely seaworthy, and quite manouvrable
with leeboard and rudder - with more capable paddlers
I guess you could do almost as well without :-)!

What differs in practice with the XXL compared to the
Ae II, is the draft, and the windage, as the longer XXL
have more surface above the waterline, but needs
less draft to carry the load (normal load 225-250 kgs).

Hull speed is also higher, due to the increased length,
of course, but if we manage to paddle it at hull-speed
I have no idea (4.5 knots is what we manage, over
a fairly long distance, with the XXL, and 4.0 with the Ae II).

We have more snow here than since the 1980's record years,
and soon the entire Baltic will be frozen (if curremt weather
continues), something that has not happened in modern times!

So while Alaska seems to have local warming, we have a deep freeze!
Later in the week we're promised lots of more snow, so more
roofs will collapse, and more people will freeze to death!

We could use some global warming!

Tord
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