Old as Dirt!
Join Date: Nov 2008
Location: Tampa Bay Area
Thanked 152 Times in 144 Posts
Rep Power: 9
Re: Spreader dimensions or build?
For what its worth, in a single spreader rig, the spreaders are typically sufficiently long to allow the cap shrouds to ascend vertically from the chain plates taking into account that the spreaders are customarily angled upwards somewhat such that the angles between the upper and lower sides of the spreader and the upper and lower portions of the shroud at the spreader tip are equal. The object of this arrangement is to insure that the compression loads induced in the spreader itself are co-linear with the center axis of the spreader to avoid induced buckling loads in the spreader.
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."