Cunningham ratio pole

[Philip]

What cunningham ratio do you use?

 

[Murphs]

im not too sure on how to calculate it lol

if anyone can make sense of my stupid diagram let me know what purchase it is ( or ill just draw one with good old mspaint)

|-0- <--- eye in sail
| |
| + <--- block
| | | |
| | | |
| - |
| T |
U |
R <_____ cleat
B
O

 

[Philip]

Chris
It looks like 6:1

The line through the sail eye gives 2:1
and a block setup with 3 ups and downs (ie two single blocks one with a becket) gives 3:1. So 3x2=6:1


Phil

 

[Murphs]

thanks Phil.

I find 6:1 very good and almost never have any trouble pulling the cunningham on although from what matt sterett has said, spars from north america are softer and the cunningham is easier to pull on