Simple,

Boy, are you full of ****! Tonnage is taken from "TON" get lost with
your Tun BS

Hiscock is a good authority. By your own quote; "Depth is an internal
measurement taken from the deck ( that Part of the boat connected to the
Gunnel, that you walk on going around the cabin to get to your stupid
hanked on sails) at mid ship to the top of the keel!!! Probably around
5 ft on your craft. What the Hell is so hard to understand about that?

Displacement; minus engine, shaft, mountings, bulkheads and etc that
water cannot displace, leaves the rest of the volume to be calculated
and converted to the weight of WATER!! Go drink your damn wine, it has
nothing to do with displacement

Now, if you want to further demonstrate you ignorance, refute this
statement. That will be the last word. I'll not get into a yes it is, no
it isn't with you.

So. UP YOURS !!! AND "I'LL DRINK TO THAT!!"

Ole Thom