Jerry, I need to admit to my ignorance, because I am also concerned about the centerboard rope on my M-15, # 335, which you built in 1985. If I tie the knot at 15 inches, my question is 15 inches from what, where to I put the end of the ruler? Steve M-15 # 335 ----- Original Message ----- From: "jerry montgomery" <jerry@jerrymontgomery.org> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Sunday, May 12, 2013 10:42 AM Subject: Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture
Doug is correct- we set them At 15" at the factory. If the knot isn't pretty tight it will tend to migrate, so watch it. jerry ----- Original Message ----- From: "Douglas Kelch" <doug1kelch@gmail.com> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Sunday, May 12, 2013 9:32 AM Subject: Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture
I believe 17 to 18 inchs is too much. With the boat in the water, ease the board down (without a stopper knot) until it bottoms out. Put tension on the line, marke the line where it needs to stop an pull the board back up. The tie the stopper knot so that the mark is about 1 inch above the point that will jamb the stopper knot. This will allow for an inch of stretch in the rope if you accidentally let it free fall.
Thanks
Doug Kelch M15 G #310 "Seas the Day"
On Sat, May 11, 2013 at 7:26 PM, George Iemmolo <griemmolo2@gmail.com>wrote:
John
Thanks for the feedback now see the need for the stopper knot at the 17"-18" distance will have to set mine up as specified. May not be able to use the proposed hardware and the stopper knot will prevent it's use.
George
-----Original Message----- From: montgomery_boats-bounces+griemmolo2=gmail.com@mailman.xmission.com [mailto:montgomery_boats-bounces+griemmolo2=gmail.com@mailman.xmission.com ] On Behalf Of John Tyner Sent: Saturday, May 11, 2013 9:14 AM To: For and about Montgomery Sailboats Subject: Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture
If I remember correctly, the M-15 centerboard was designed with a small
tab built in which was intended to stop it from dropping to far (and
pivoting forward into the trunk). Of course, the difficulty with that
was if you simply dropped the centerboard uncontrolled the tab would
eventually break off from impacting its stop, and if left to rest on its
stop while underway wave action could eventually lead to tab failure,
too. The purpose of the stopper knot is to keep the board and tab just
above this position (which is where Jerry designed it to be deployed).
Hope I'm not confusing the 15, 17, and 23. There's also a little
centerboard info here
(http://www.msog.org/how-to/how-to_flotjet.cfm#cb_snips) if you haven't
already seen it.
---------------
John Tyner
M-15 #412 "Chimpanzee"
On 5/11/2013 12:24 AM, George Iemmolo wrote:
Dave
As I understand it 'AC' used the original molds so the orientation of the CB
keel trunk and the opening in the cockpit should be the same as original
designed. I just checked my boat and the CB pennant, goes thru the center
opening of a 6" cleat mounted horizontally on the side of the cabin wall
just below the hatch opening and, is 36" long. It does not have a stopper
knot at 17"-18" above the cockpit floor opening.
It appears that the depth of the board is controlled by the amount of line
let out and then secured on the cleat. I intend to install a 180 deg.
swiveling cleat platform with a c-cleat (WM model. 505456 pg.976) left over
from my prior boat so as to have infinite depth control with out having to
tie off. I have not had it in the water so do not know how far down the CB
will go. Do you know if the CB had an original mold?
A picture would be helpful information as I go forward. The 17"-18"
information will be used to mark the pennant so as not the have the CB hit
the CB trunk at the front end.
Thanks for the feed back great support group.
Will post pictures when I am done in the next week or so,
George
-----Original Message-----
From: montgomery_boats-bounces@mailman.xmission.com
[mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of W David
Scobie
Sent: Friday, May 10, 2013 7:28 PM
To: For and about Montgomery Sailboats
Subject: Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture
George:
the pennant should have stop knot (figure-8 knot) about 17"-18" above where
comes up into the cockpit. i sailed my M15, and the Glessers', with the knot
about 1" from 'going into the trunk'. i can share a picture from the
Glesser's M15 if needed.
the M15's centerboard 'in-trunk forward edge' will hit the forward end of
the centerboard trunk if it is over extended. the board is still in the
truck at this stage and not correctly supported.
now this is for Jerry's boats ... which your boat is not. the pictures of
your boat i have don't show the centerboard pennant clearly. so, i don't
know if the one (or two) boats built buy Chuck (aka, American Classics) are
to Jerry's spec.
:: Dave Scobie
--- On Fri, 5/10/13, George Iemmolo <griemmolo2@gmail.com> wrote:
Dave
How does the CB system know not to drop the center board
beyond the proper
distance to keep the non foiled edge in the trunk?
George
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