Viper 640 Class Association Forums

Viper 640 Public Forums => Sailing, Handling, Tips and Techniques => Topic started by: Hays Clark on March 31, 2012, 02:59:17 PM

Title: Stock Cunningham rigging for present design?
Post by: Hays Clark on March 31, 2012, 02:59:17 PM
Could someone take a photo or videotape the correct (stock) Cunningham rigging setup for the 640?  The stock rigging bag came with a Stopper Ball, length of Amsteel with a splice on one end and a block on the other and a short red line.  Made some clever rigging attempts but none seem correct.  What is the correct way to assemble the stock 4:1?

I saw the other tread about Cunningham rigging but I am looking for a stock setup:
http://forum.viper640.org/index.php?topic=656.0

Cheers,
Hays

Viper 144
Title: Re: Stock Cunningham rigging for present design?
Post by: Dan Tucker on April 01, 2012, 08:53:07 AM
Very difficult to describe, simple and elegant in practice once you "get it".

The eye splice in the 12-strand should pass through the tack, then through the padeye on the front of the mast, and the end of the line with the ball, then goes through the eyesplice, dinghy knot style. The other end of that line goes through the cleat. It makes a cascading 4:1.

My crude attempt at a diagram attached.
Title: Re: Stock Cunningham rigging for present design?
Post by: Matt Sole on April 01, 2012, 03:32:22 PM
You including this diagram in the new manual??
Title: Re: Stock Cunningham rigging for present design?
Post by: Drew Harper on April 02, 2012, 02:31:16 PM
You use CAD/CAM program for that one Bubba? ;-)

Title: Re: Stock Cunningham rigging for present design?
Post by: Dan Tucker on April 03, 2012, 04:56:03 PM
Quote from: Drew Harper on April 02, 2012, 02:31:16 PM
You use CAD/CAM program for that one Bubba? ;-)

Yup. Coffee Assisted Design/Caffeine Assisted Marker!