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Capt. Mooron
 
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Well of course...... and let's not even the mechanical disadvantage offered
by the location of the vang. ;-)

CM
"Nav" wrote in message
...
|
| FYI:
|
| Now this may come as a surprise, but the boom is more likely to buckle
| if a rigid vang is used to lift a weight at the boom end than if the
| same load is upward (as applied by a sail).
|
| In the upward case the boom wall is being pulled out by the vang -an
| effect opposed by tension in the boom surface due to the bending moment.
| In the weight lifting case, the lower surface is in compression and is
| being pushed in by the vang so that wall buckling is far more likely.
|
| Cheers
|