Block Loading vs. Angle of Deflection

5/6/2012

Load on a block is a combination of the load on the line passing through the block, plus a block-loading factor, which is determined by the angle by which the block turns the sheet . For example, a footblock that turns a sheet 180° will see a load equal to twice the load on the sheet. A deck organizer, which turns a halyard only 30°, will see just 52% of the load on the halyard.


Angle of deflection Load factor Angle of Deflection Load factor


30°52%120°173%


45°76%135°185%


60°100%150°193%


75°122%160°197%


90°141%180°200%


105°159%  

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