<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14pt"><div>As an example of my delving into this particular subject, I am having a bit of trouble trying to understand the nature of the aft diving tank (No.1) on the original Seehund. Understanding this well, is key to an appropriate attempt for a viable facsimile.</div><div><br></div><div>I've attached an image of where I'm unclear. I suspect that the uppermost volume of this tank was encased in what looks like a double hull void, but I can not quite confirm this. Also in question are the following with my analysis, supposition or questioning.</div><div><br></div><div><br></div><div>1) Is this a double hull in this aft conical section? (Raising CB, lowering CG)</div><div>2) Position of the vent valve? (Is this due to dive angle?)</div><div>3) "J"
trap nature of bottom of assembly in keel section of tank? (Anti-syphon?)</div><div>4) Coiled hose assembly in section view?? (completely at a loss here?)</div><div><br></div><div>Comment's and suggestions are sincerely appreciated. What's on my mind is the temptation and viability of reproduction in reduced scale. Sea Hunter's lines are pleasing and close to scale in section @ 36"OD for the hull, 24" for the CT/Sail assembly and No. 14 pipe for the torpedo/battery pod assemblies. (Can get away with No. 12 as well).</div><div><br></div><div>Cliff's wonderful .xls requires that I draw up an accurate model first in order to simulate ballasting.</div><div><br></div><div>Joe</div><div><br></div></div></body></html>