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size=2><BR>Hi Joe the Seehund has some quite
funny system. <BR><BR><FONT size=3 face="Times New Roman">01)
No
there is no double hull in the aft. <BR></FONT><BR><FONT
face="Times New Roman"><FONT size=3>02) Yes both dive tanks has the
vents on the
aft and highest point for quick diving. From command "dive" to get
underwater
was 10 seconds. <BR></FONT></FONT><BR>03) The j trap is the outlet
of the
blow air line. <BR></font><BR><FONT size=2 face="Courier New">The
Seehund
surface the following way: <BR><BR></FONT>Close vent vale, blow a little
compress air to the blow out line, until the diesel snorckel surface.
Drive the
diesel with the main e-motor as compressor and blow the dive tank with
this gas
complete. out.
<BR><BR>Another way was : (mostly use by the
crew but more or less ilegal : Run the boat dynamicly to the surface ,
start the
diesel and blow the tanks with the exhaust gas. <BR><BR>Both ways were
developt
to safe on compress storage gases. <BR><BR>04) No idea. <BR><BR>vbr
Carsten<BR>
<BR> rkel via Personal_Submersibles"
<personal_submersibles@psubs.org> schrieb:
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><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>
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