Measured while on the hard from under the stern using simple algebra.
Allen
From: Wwadjourn
Sent: Friday, November 22, 2013 9:15 AM
To: capt...@yahoo.com ; cnc-list@cnc-list.com
Subject: Re: Stus-List 30 MKI weather helm - marking wheel, etc.
Good tip. How do you determine 2 and 4 degrees? Simple trick?
Bill Walker
Evening Star
CnC 36
-----Original Message-----
From: Dennis C. <capt...@yahoo.com>
To: cnc-list <cnc-list@cnc-list.com>
Sent: Fri, Nov 22, 2013 9:06 am
Subject: Re: Stus-List 30 MKI weather helm - marking wheel, etc.
Good tip on the wheel marks. We do similar on Touche'. I have a 36 inch wheel
that is used only for racing. Normally, I use a 32. We use tape, green for
TDC, yellow for ~2 degrees, red for ~4. When the main trimmer sees the red
tape stripe at the top he eases the traveler.
A "visual" boat is easier. We have a Navtec hydraulic backstay. I taped a
small batten to the cylinder so it extends upward several inches to the head of
the ram. On it are green, yellow, red and black tape marks. We adjust the
backstay to the desired headstay sag then remember the color where the head of
the ram is. Easier than looking at the pressure gauge.
Dennis C.
Touche' 35-1 #83
Mandeville, LA
------------------------------------------------------------------------------
From: allen <allenmi...@earthlink.net>
To: cnc-list@cnc-list.com
Sent: Friday, November 22, 2013 7:36 AM
Subject: Re: Stus-List 30 MKI weather helm
Rob,
I have sailed Septima for nearly 20 years, in all kinds of wind and sea
conditions, racing and cruising. Some lessons learned.
a.. Sail her flat, no more than 18 degrees heel. We have inclinometers on
the back head and the helm and trimmers work to keep her in range.
b.. Check your sails. If they're old, they're too baggy, you're gonna
heel. We have low stretch racings sails. Lowered our weight aloft a lot and
they don't let the draft come aft as the wind picks up.
c.. Useful tools: hydraulic backstay adjuster, bridge deck mounted traveler
with a windward adjustable car, cockpit adjustable genoa cars, powerful
cunningham.
d.. Tune your rig with the mast raked 10 to 12 inches.
e.. You sail a 30-2, with its broad beam carried so far aft, differently
than the older designs. We actually steer Septima with the main because the
main trimmer has the windward car and is sitting on the side deck in front of
the helm where they can communicate easily.
f.. Our wheel in marked each side of TDC with a seam that indicates 4
degrees of rudder. Helm puts the appropriate seam TDC, trimmers trim the
sails, and, as the boat gathers speed along the course line, helm relays to
main trimmer whether helm is light or heavy. Main is retrimmed using the
traveler only. Object: keep the foils moving thru the water at 4 degree
incidence angle and keep heel 15 to 18 degrees.
g.. As wind speed picks up. use sail controls to keep things in balance.
More backstay pressure, halyard tension, aft movement of genoa cars as needed
for headsail; more cunningham, traveler to leeward, twist off the leach for the
main.
All these actions keep the boat balanced, fast and stable. I have never had
the rudder stall. Its always at 4 degrees incidence. Can help to move crew
weight aft as wind really picks up. It's not rocket science.
Allen Miles
S/V Septima
Hampton, VA
Oh yes, I was a rocket scientist.
From: Robert Gallagher
Sent: Friday, November 22, 2013 1:29 AM
To: cnc-list@cnc-list.com
Subject: Stus-List 30 MKI weather helm
My 30MKI had the mast raked back and the rigging on the tight side. Weather
helm yes, it could be a bear. Round ups never. I could bury the rail deep and
just keep plowing along.
My 30MKII's rudder will stall then round up out of control with to much sail
up and not enough tension on the backstay. Too much heel and it gets scary.
All that being said im still learning on my MKII
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