loads on sheets calculation

[swissboat]

Hello
No response on the sailboats forum so I try this one, perhaps more chance !!
Thank you all for your very kind helphttp://www.boatdesign.net/forums/images/smilies/biggrin.gif

Do somebody know some basic rules to calculate the max loads on the sheets, specially on the spinnaker sheets and halyard in relation to sails area and perhaps boat weight !http://www.boatdesign.net/forums/ima...s/confused.gif
Thanks for your kind help

[TimClark]

http://www.sailingusa.info/cal_wind_load.htm

[swissboat]

Thanks very interesting website, but could not find the answer for the spinnaker sheets and halyard
Many thanks for your help

[Robert Gainer]

You can start with this and work from there.

http://www.harken.com/pdf/loads.pdf

Robert Gainer

[TimClark]

Sorry, I thought you meant how much load the sail was generating.

[SeaSpark]

Southern Ocean ropes have a sheet/halyard calculator for spinnakers on their website.

The underlying formulas are not given and the calculations are only based on length. You should be able to make an estimate of the loads by looking up the strength of te rope advised.

http://www.southernoceanropes.co.nz/index.cfm?sector=9