Thanks Dave, Tom also, I now recall seeing this somewhere in the MSOG site or the like, in notes from Jerry. Is there an "official" recommendation for knot to tie off? Sounds like the figure eight hitch is working for at least one of us. There's lotsa knots in the world...and I see at least one project on MSOG site where a shackle & eye splice was used. And 5/16 was maybe based on line available in "the early years"? We've got stuff now half that size and twice as strong. Keith, didn't you post a while back you were using 5 mm something for pennant? And David has 6 mm. How do those single braid (or other braid) small lines do at getting enough friction on the winch when raising the CB? cheers, John S. On 10/27/2016 11:45 AM, Dave Scobie wrote:
here is Jerry's recommendation for the cast iron board pennant line -
The line used to raise and lower the CB is 5/16... The trick is to cut away about 4" of the internal core and use that part to tie off at the CenterBoard, making the knot small enough to fit properly in the CB Trunk.
:: Dave Scobie :: former M15 owner #288 - http://www.freewebs.com/m15-name-scred :: M17 #375 SWEET PEA - http://www.m17-375.webs.com :: Sage 17 #1 - AIR BORN - http://sagemarine.us/sage_17.html :: Sage 15 sloop #001 - ASOLARE - http://sagemarine.us/sage_15.html :: SageCat #000 - SAGECAT - http://sagemarine.us/sagecat.html
On Thu, Oct 27, 2016 at 11:52 AM, John Schinnerer <john@eco-living.net> wrote:
PS - this is a pennant for the heavy cast iron keel version M17! Not the lightweight newer one. In case I wasn't clear...
thanks, John S.
On 10/27/2016 10:49 AM, John Schinnerer wrote:
Thanks all for the feedback on this.
I expect I'll find a bulky knot in the fat pennant line when I lower the board...I'd be happy to just get it down to half an inch. As it is, with the trailer I have, the rear roller is behind the keel/CB when the boat is fully on the trailer. In shallow launching situations where the stern isn't deep enough to float off the bunks, the CB protrudes enough to catch on the roller and stop the boat sliding back off the bunks.
What is recommended or best options for pennant line replacement? It has some kind of one-color double braid on it now, pretty fat, 3/8 I would guess without going and measuring it.
Definitely interested in knots & usage. Not a lot of major references to the figure eight hitch, but I found a few. I know the "regular" figure eight well from climbing/mountaineering but hadn't heard of the hitch version. One video on figure eight hitch says "for light duty" and "not the most secure knot" but obviously it's worked for you David. It would be under tension all the time if used for the CB so in that case I think it would be pretty secure. If alternately slack and tight, I can see how it could slowly loosen itself in some situations.
cheers, John S.
-- John Schinnerer - M.A., Whole Systems Design -------------------------------------------- - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john@eco-living.net - 510.982.1334 http://eco-living.net http://sociocracyconsulting.com