Re: [PSUBS-MAILIST] surface experiments on K-350s

[MerlinSub@t-online.de]

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
 




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************