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Hugh, From the one clear picture showing her from the Port side, I see no rotatable side thrusters such as is found on any K boat. Are there permenently mounted thrusters that use tube channels going vertically up into the ballast or upper area of your submarine? David Bartsch From: hc.fulton@gmail.com To: personal_submersibles@psubs.org Subject: RE: [PSUBS-MAILIST] Dive planes Date: Sun, 13 Sep 2009 19:22:09 +1200 Hi David, There is only a depth sounder on board and it needs a passive Sonar of some sort so I want to fit that microphone to it. Would be good to have something. I am wanting to get it out from Tutukaka and dive on the Niagara with a bit of help from Keith Gordon who is the resident expert on the wreck and wrote a book on it. He has got some sort of rights to it as there is still some gold on board. I will be triying it out somewhere safer first though. Have to have dreams. I’ll be in touch on the build though. Count on it. Hugh
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of David Bartsch
Hugh, From: hc.fulton@gmail.com Jay ‘n’ Vance. Thks that is helpful stuff. I was thinking of putting some planes on the Comsub. It has had a rudder retrofitted about 12” x 24” high but it is in the prop wash. I am just reconnecting the aft lateral thruster and reconditioning all the hydraulics. AThe hydraulic pump is really noisy so I’m thinking of putting a pulse suppressor on and a 5 litre accumulator with a pressure switch. Otherwise I think it will drive me nuts. I want to go down for some peace and quiet.
I have uploaded a few photos of the internals and bits on the projects page under “Hugh Fulton” Comsub.
Regards, Hugh
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jay K. Jeffries
Hugh, I am still working on my presentation for the upcoming Conference and need to figure the various increases in size for the control surfaces for the Seehunde. Just remember in the back of my mind the large tail surfaces on some Perry submersibles...I may be wrong but it just sticks in the back on my mind. Some of the images in Busby’s Manned Submersibles might be of assistance.
After writing the previous email and recollecting on the classes I attended over lunch while at Electric Boat, for larger Navy subs that have the capability to operate at higher speeds, the control surfaces are relatively small when compared to the size of a hull (effectiveness of control surfaces goes up with speed). The minimum effective speed for these surfaces was 3 knots. For a PSUB, the control surfaces are larger in area compared to hull size so may be more effective. Unfortunately for us, there is very little in the way of published naval architecture references for submersible design and even less for subs the size of the typical PSUB. R/Jay
Resepectfully, Jay K. Jeffries Andros Is., Bahamas
Save the whales, collect the whole set.
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Hugh Fulton
For the uninitiated what size were they? Mm or inches will do. Approximations gratefully accepted. Would be helpful. 2 sq ft, 6 sq ft? approx length and breadth. Hugh
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