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Old 09-10-2015, 08:27 PM   #36
Mako
Guru
 
City: Seattle
Join Date: Jun 2012
Posts: 3,312
I appreciate all the feedback so far. To answer the above questions:

* Bottom conditions will of course be varied, so I'm trying to size anchors based on somewhere in-between the holding loads reported from hard sand to soft mud. Just an average, trying to be conservative. For the first few years she will be based out of the west coast of Malaysia where previously we had encountered either sand or sand/clay.
* Sizing for force 11 winds to calculate aerodynamic drag. I can't recall the last time someone tried to anchor in 30 to 50 foot seas

Design and calculations are always based on assumptions, ideal conditions, etc., but in the end selecting anchors is based on experience, gut feeling, etc. My previous boats all came with anchors and the only new one that I built (small fisherman) was easy to decide on ground tackle because it was a day boat anyway.

Desiging and building a new boat is exciting and fun and very frustrating all at the same time.
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