Thanks Emile and Carsten. That convinces me.
Hi Vance, on KSS Eurosub the both saddle tanks are connected together on the bow
with an Y pipework to one 1" ballvale. At the rear end both tanks have a opening
as 2" pipe goes a little down. Dive is quick.
The boat is designed that way that it is a little stern heavy on the surface and
on level with flooded tanks underwater. Means the saddle tanks are just a little
forward locate of the longitundinal center of bouancy.
The nice thing is that if you flodded the tank the boat sunk first stern heavy
and went on level with the last airbubbels goes out. This prevent to catch any
airbubbles in the tank during diving. And prevent the need of dolphin manover to
get the last air out.
In case of that the saddle ball vale is jammed in condition open you can just
forget the saddle tank and empty the 66% water inside the hardtank which is used
to get to zero bouancy - and the dome just surface complete.
vbr Carsten
<vbra676539@aol.com> schrieb:
>
> Alex and Dan H and whoever,
>
> I am redesigning MBTs for my 1-man K along the lines of Carsten & Emile's KSS.
Has anyone done stability games with their K-boat with one ballast tank vented
and one blown dry. I'm trying to get an idea of the angles involved when
flooding the new tanks. At present, they are coming out to about 8' long overall
from front to back and are plumbed for port and starboard, rather than fore and
aft. The bottom vents would be about 2/3s of the way back along their calculated
length with the vents right up in front (larger ball valves than you guys are
using, so there will be less hang time involved on the surface). My alternative
is to divide each tank at the midpoint (under the conning tower side ports) and
plumb the aft sections together through a 1" T and then to the vent valves, and
the forward one pretty much as the Captain called for. The issue with that is
those aft tanks staying level from side to side as the boat rolls in a seaway.
It would be possible to blow one dry with the other still partly flooded. It
would probably settle out with some nursing, but who's to know?
>
> Vance
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