Clare Snyder writes:

On Tue, 06 Apr 2021 13:06:00 +0100, Richard Smith

.............



I do a lot of these calculations.
eg.
http://www.weldsmith.co.uk/tech/stru...lat_calcs.html


Rich Smith
Interesting liittle project - O like your reasoning and explanation -
particularly your "tap stick"
I've run into a lot of your "welders" who would make the thing so
heavy it could hardly support itself!!! (or they would fasten it to
the rig instead of the barge and it would be so heavy it would tip the
rig before it would bend - - -

I'll take that brief comment as warm praise coming from your
background of experience.
I wanted "inherent safety" - that there would be "clue sticks" along
any way the equipment could be abused.