SailNet Community - View Single Post - Designing block and tackle systems
View Single Post
post #9 of Old 06-06-2011
SlowButSteady
Senior Slacker
 
SlowButSteady's Avatar
 
Join Date: Feb 2010
Location: SoCal
Posts: 4,223
Thanks: 0
Thanked 17 Times in 15 Posts
Rep Power: 6
 
Quote:
Originally Posted by sandycohen View Post
PS - Sorry for not replying to your concern re: failure - I have a keel stepped mast so this is less of a danger
I don't think we need to actually crunch the numbers to realize that the lever-arm on the mast as it passes through the deck (mast partners?) is tremendous. If the backstay tensioner fails with boat on a run (just when the backstay is really needed to keep the mast up), and there is nothing left to keep the mast from bending forward, I seriously doubt that the it's is going to be able to resist that sort of bending moment.

Never forget them. Do something to prevent it from happening again.
Charlotte Bacon, Daniel Barden, Rachel Davino, Olivia Josephine Gay, Ana M. Marquez-Greene, Dylan Hockley, Dawn Hochsprung, Madeleine F. Hsu, Catherine V. Hubbard, Chase Kowalski, Jesse Lewis, James Mattioli , Grace McDonnell, Anne Marie Murphy, Emilie Parker, Jack Pinto, Noah Pozner, Caroline Previdi, Jessica Rekos, Avielle Richman, Lauren Rousseau, Mary Sherlach, Victoria Soto, Benjamin Wheeler, Allison N. Wyatt
SlowButSteady is offline  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome