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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Tension gauge for shrouds and stays
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AlMo
1st Mate

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USA
31 Posts

Initially Posted - 09/08/2018 :  22:49:56  Show Profile  Reply with Quote
A fellow Catalina owner approached me today to ask if I knew how to read a tension gauge he acquired with his 1987 C22. We figured it out with the help of a young man who happened to be walking on the dock. However, I couldn't find any values for either a C25 or C22 in looking in both owner manuals, although p. 11 of the C25 has a "rigging specification" reference to the diameter and length of the various stays and shrouds. Kind of looks like maybe only rigging specialists have access to the info, unless someone can point me to somewhere to locate it for a C25 and/or C22. The C22 is rigged very similarly to the C25, with three shrouds per side in a fractional rig, but I'd expect the tension values, if they exist, to be somewhat different for the smaller craft.

1978 C25 "X Lives" #1035
SR/SK

Sailynn
Navigator

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USA
147 Posts

Response Posted - 09/09/2018 :  20:17:44  Show Profile  Reply with Quote
Both C22 and C25 National Associations have those recommendations in their members Technical Manual. There are no definitive numbers as the variable of wind speed, flat water, waves, sail and mast height, and keel configuration are always the final variables. The Assoc. Manuals are well worth the $25 to join either association and then purchase the Tech. Manual via download.

Lynn Buchanan
1987 C25 SR/WK #5696
Sailynn
Nevada City, CA
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Derek Crawford
Master Marine Consultant

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USA
3191 Posts

Response Posted - 09/10/2018 :  07:51:36  Show Profile  Reply with Quote
The actual settings of the shrouds are very much both personal preference and usual sailing conditions. The essential parameter is that the aft lowers are loosest, the uppers tightest and the fore lowers in between. (For instance, on TSU they read 20,30,25 from aft to forward - which are much too loose for most people).
It is not necessary,IMHO, to use the readings on the front to calculate the foot pounds on the back of the guage. The front gives you all the info that you really need.
When finished tuning, look up the mast track and make sure that it is perfectly straight all the way to the top. If not, adjust the appropriate upper.

Derek Crawford
Chief Measurer C25-250 2008
Previous owner of "This Side UP"
1981 C-25 TR/FK #2262 Used to have an '89 C22 #9483, "Downsized"
San Antonio, Texas
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