Sheet Load Engineering

[Brion Toss]

Hi again,
Great traveler story. I once saw a winch explode, one of the gears blowing a hole in the wall. At least I think it was a gear, but we never found it. So yeah, we are dealing with forces that matter, which is one reason to run those numbers.
As you move on to block selection, remember that the angle of the line on the block determines block load, and that you do not scale the block to the selected rope size, but to load and angle.
Fair leads,
Brion Toss

[lavery]

Thank you Mark and Brion,

Mark,
Wow! Yes, operator error trumps good engineering – all part of the sailing adventure. On my 26’ S2 sloop I used a 3-strand nylon (16% stretch) mainsheet to back up my operator errors. I liked the cushioning, but may have degraded performance.

Thank you for your rope recommendation, and too for sharing the diameter that works for your hand. That is another variable for me to consider.

Jim


Brion,
I’ve seen your tratment of angles in “Rigger’s Apprentice.” Good stuff. I look forward to applying it. Thank you for pulling that book together. It has been a big help.

Jim

[lavery]

Thank you Mark and Brion,

Mark,
Wow! Yes, operator error trumps good engineering – all part of the sailing adventure. On my 26’ S2 sloop I used a 3-strand nylon (16% stretch) mainsheet to back up my operator errors. I liked the cushioning, but may have degraded performance.

Thank you for your rope recommendation, and too for sharing the diameter that works for your hand. That is another variable for me to consider.

Jim


Brion,
I’ve seen your tratment of angles in “Rigger’s Apprentice.” Good stuff. I look forward to applying it. Thank you for pulling that book together. It has been a big help.

Jim