Rigging

DRANNIE

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5 Sep 2005
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Herts
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Ok this might all sound a bit basic/numptyish but searching online has only confirmed some of my rigging fears. I inherited all the fittings on my MAB when I bought it and unfortunatley the mast was not rigged.

The yard put the mast up but with no tension in the rigging. I am familier with how to set the tension ie using a loos gauge etc (seldon guide) and have got the mast straight and shrouds tightish.

My concern is over what hardware there should be. I have open turnbuckles but no nuts or other devices other than a cotter pin to keep in all in place. When adding tension I either end up loosing one end when I tighten the other, adding a cotterpin to prevent this ends up with inducing twist or eventually bending the pin. I suspect this isn't the best set up, any suggestions as to what should be there, am I just being hamfisted?
 
The basic idea of a rigging screw is that the two threads oppose each other. So, when fitting, start both threads simultaneously. One side is a chainplate toggle, so won't rotate - the other is the end of a shroud and must be held with a spanner to prevent rotation. Then when correct tension has been achieved, you can fit pins or mousing to both screw ends. Most people suggest that you should leave the screw open to prevent differential aeration corrosion, etc. However, if you have used split pins to lock the threads, put some tape around at that point to prevent snagging on your clothing and/or flesh!
 
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