On 3/23/04 6:36 PM, in article ,
"DSK" wrote:

Should I have put a smiley on that last post?
Sheldon Haynie wrote:
Well a properly designed Yawl or ketch does not have excess weather helm as
the Main mast is farther forward than for a sloop.

Maybe it depends on how you define "properly designed." Some of the
yawls I've sailed in company with were old low-aspect sloops with the
boom docked and a mizzen stuck in place.

Well most rig options/conversion are not per se a good design, but a
compromise. In very light breeze, without the mizzen, we can get a lee helm,
sort of a reminder to put the bow down and drive.


Most of those are gone now.
OTOH we have a dock neighbor with a Seafarer 34, originally a yawl, but
now sailed as a sloop, and the owner reports that it handles the same
and that they always dropped the mizzen anyway when beating.


As do we, careful measurement shows faster upwind (there is an oxymoronic
comment for CCA designs) without.


In some of the old advertising brochures, such as the Allieds or the
Cape Dories, you can see the sailplans for the yawl version right next
to the sloop version... is the mast in the same spot?

IIRC the Bermuda 40 was never offered as a sloop?


The B-40 was offered as sloop or Yawl, the mast was raised 2 ft in Mark II
and raised a further 2 ft and moved 2ft aft in the Mark III if I recall.



... And with a centerboard
you can tune to your hearts content, just 125 cranks up to down.

Agreed. One more advantage of a centerboard. Plus you can get it up out
of the way going downwind.

Or come right into the beach at 4' draft



You can trim the mizzen to set a neutral helm on most any reach, or if you
are trying to point higher than about 50 degrees to true wind just drop it.

We set the mizzen staysail at about 80 degrees apparent, similar to the
asymmetric chute in usage. While the mizzen is only about 90 ft^2 (hoist 20,
boom 9) the staysail is closer to 350 ft^2. (Perpendicular about 25 and luff
28 or so) this is 50ft^2 bigger than my Main. (35 hoist and 17 foot)

Nice sail to carry in good winds of 5kts or higher, since it is low set it
is not very effective much below that. It is a very easy sail to set and
strike and trim, compared to setting a spinnaker.

Your leeway will vary.

I kind of like having the mizzen mast right where it is handy. It makes
a nice secure hand hold and a great mounting point for radar. It does
get in the way of the solar panel arch though

Well my mizzen carries the radar, fog horn, various antenna, flags and such.
A Solar arch or davits is sort of a compromise too, handy but not my idea of
a good design feature... Then again many would look at my brightwork and
run.



Fresh Breezes- Doug King


--
Sheldon Haynie
Texas Instruments
50 Phillipe Cote
Manchester, NH 03101
603 222 8652