shroud movement

10/04/2010 13:26:35
miles
Can anyone advise me as to what distance the shrouds move through, from mast being upright to fully raked. Think I've got my purchases all wrong.

Thanks in advance
Miles

11/04/2010 19:58:35
john
Here are my calcs. Dont know if they work yet for certain. Ask me next week when i've tried it!

Total Purchase Raking block
Forestay Length 4838 4858 4878 4898 4918 4938 4958 4978 4998 5018 5038 200 2 400

Shroud Length 5014 5008 5001 4994 4988 4981 4974 4967 4961 4954 4947 -67 6 -403.3275731

Lower Length 1169 1165 1161 1156 1152 1148 1144 1139 1135 1131 1126 -42 9 -382.4078316

Mast Rake (degrees) -8.8 -7.8 -6.9 -5.9 -4.9 -3.9 -3.0 -2.0 -1.0 0.0 1.0
Measured Rake (main halyard to transom) 7374 7332 7290 7248 7205 7162 7118 7074 7030 6985 6940

Hopefully it formatted correctly above.

11/04/2010 20:00:15
john
The last three columns are
1. Total travel before any purchase
2. Purchase used
3. Raking block travel based on 1. time 2. above

11/04/2010 20:50:40
Andrew M
Slightly simpler answer, from looking at what I have.

About 2.5 inches, standard Turner layout.

Anyone else?

12/04/2010 13:18:18
Miles
Thank you to you both.

I thought I'd got something wrong, had 9:1 on shrouds, now 6:1 and have required amount of movement. Just need to increase purchase at kingpost.

Thanks again.

www.the-willows-abersoch.co.uk

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