I need to replace the choker line on Catspaw. Looking at the specs in my owner’s manual, it calls for 9’ 6" of 3/16 line. This is the upper section of line, not the tackle line that runs to the cockpit. I’m questioning the 3/16" size because what’s up there now appears to be about 1/2" (haven’t climbed up to measure it yet). Can anyone offer a recommendation on this? Thanks.
Gary, I would go for low stretch 3/16" recommended in the specs. I can believe that you have 1/2’’ I think that is what I have too, but I have not replaced it yet. It was more important to replace all the oversized pennants and the 1/2" halliard. I have no regrets in replacing all the oversized lines as they were a major source of friction. It seems that there was a period that Nonsuchers thought bigger is better.
Cheers,
John Newell
Mascouche 26C 1
Toronto
Hi Gary,
I would be interested in seeing your spec sheet.
I have included mine (attached).
Your 30U is younger than mine, and may reflect more refined decisions.
As you can see my specs say a shorter length of thicker rope, namely :
Wishbone Choker 7/16” Dacron Braid 7’9” …
If I were replacing my choker, I would hope to use Amsteel (dyneema)
because of its strength and low friction, but might have to consider
using a different knot than a bowline.
Such a advanced rope could be much narrower than Dacron.
Jon Matthews EVENSONG 30U 266 Toronto
Hi Gary
I can assure you that it is a typo. It should read 7/16. The length is good.
Cheers
Mike Quill
Thanks to all for the good advice. I think I agree the 3/16 must be a typo. Back in 1986 the hi-tech lines just weren’t available so that would have been way too small of line. I believe I’m going to try Amsteel braid in 1/4". It’s strong as steel and easily spliced (even I can do it). Will let you all know how it works out.
Gary
Catspaw
N30U #362
Blaine, WA
Thanks for the spec sheet, Jon. I’ll try to scan mine for you. Have to retrieve it from the boat first though.
Gary
Catspaw
N30U #362
Blaine, WA
The spec sheet for the 26 calls for 7/16" dacron braid 9’6" long and the choker tackle 5/16" X 36’ . One should be able to reduce rope size with modern materials to reduce friction.
John Newell
Mascouche 26C 1
Toronto
