UBBFriend: Email This Page to Someone!

J/30 Class Association   The Boat, Sails and Equipment   Shroud tension    profile | register | preferences | faq | search

Author	Topic:   Shroud tension
bmnp unregistered	posted 06-06-2004 08:45 PM            I bought a J-30 last fall and after a long spring of repairs and updates finally got in the water and to tuning the rig for the first time. I used the Banks Sails Guide on the J-30 site as a reference, but got nervous about the shroud tensions it specifies: 44-45 on Loos for uppers and 45-46 on Loos for lowers. These numbers are off the charts on the Loos gauge for loads for 1/4 wire and seem to require tightening the shrouds until they do not deflect at all under Loos gauge tension. Am I missing something, or is it really recomended that the shrouds be this tight? IP: Logged
D. Bartley unregistered	posted 06-06-2004 10:38 PM            I have hull #205 in Chicago. Our standard setting is 45 on the uppers, and 44.5 on the lowers. Yes, its off the scale, but that's what we use. IP: Logged
S. Buzbee unregistered	posted 06-07-2004 05:24 PM            We top out at 42/43 on the loos gauge (spring loaded type). I assume the 44 settings are for heavy air only? IP: Logged
paulb unregistered	posted 06-11-2004 03:26 PM            For what it's worth, I have a Loos Gauge with a scale to 50. It is the kind with two aluminum plates, about 2.5" wide and 10" long, fastened together at the bottom, but not at the top. The tension is measured by the amount of force required to separate the plates a certain distance (the scale) at the top when the bottom is anchored parallel to the shroud. I tune to 45 uppers and 46 lowers for most conditions and have Banks sails. IP: Logged
thor unregistered	posted 06-14-2004 10:00 AM            same here 45 44 on the loos gauge its tight.lol Thanks Thorsten IP: Logged
Brad Petrie Member	posted 06-14-2004 12:30 PM          Thanks to everyone for the replies. This forum is a great resource to those of us who are new to the boat. I have learned a lot from the archives and much appreciate being able to ask questions as well. IP: Logged
S. Buzbee unregistered	posted 06-14-2004 01:43 PM            FYI-the two metal plates version of the Loos is supposed to be a bit less accurate than the spring loaded version. Make sure that when the gauge is unloaded, the two plates come tightly together. I had a tuning gauge that was bent when I first bought my boat, and I didn't realize it. All my settings were consequently way off! (I figured that out at my first North Americans, where I won the pin in the first start, only to watch all the boats around me point 10 degrees higher off the line. Ouch!) IP: Logged

All times are ET	next newest topic | next oldest topic
Administrative Options: Close Topic | Archive/Move | Delete Topic
	Hop to: Select a Forum List of Forums:

Direct all comments to the Webmaster.
©2004 Copyright J30.org. All rights reserved.

Powered by: Ultimate Bulletin Board, Version 5.44b
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.