Main Hull Design


Monday, October 31, 2011
Back to old school. I hand drew this 3-view diagram with the new dimensions intact. This is the 27' long, 9' diameter. This is also the first time I have included the flat topside deck I have in mind. This will be made of steel grate so water will pour through. This will provide a flat stable surface when Deep Seeker is traveling on the surface.

Tuesday, August 30, 2011
This is my first attempt at a top view diagram using Visio. It shows the port holes, the conning tower, the hydroplanes and the pontoon/ballast tanks.

Sunday, August 28, 2011
After extensive calculations as to the final dimensions of my pontoon/ballast tanks, I have modified this exterior view.Ultimately the diameter of the pontoons was increased to 3 1/2' (42") and the overall length was increased to 24'. My new calculations more accurately take into account the volume of the cone at the top of the cylinder, among other things.

Tuesday, August 23, 2011
Completed an exterior view using Visio as well. Enables a nice clean design, and allows me to move things around easily if I need to.

Monday, August 22, 2011
I have rearranged some things to make more logical sense. The Diver Lockout Hatch has been moved forward to position it exactly amidships. The bathroom has been moved aft so that the air compressor and holding tank could be moved forward, against the wall of the Diver Lockout Chamber. Also added an additional water-tight hatch between the passenger area and the corridor leading aft to the DLC and the Engine Room.
I used Visio 2010 to create this detailed floor plan of the interior of my sub.

Tuesday, August 16, 2011
I believe a final evolution has occured. After deciding up the cylinrical hull with exterior "pontoon" type ballast tanks to ensure plenty of free-board abovve the water line, I then tweaked the actual dimensions a bit. I am happy with the final proportions at 25 feet long, and 8 feet in diameter.
This is the new interior design. With only 8 feet of diameter, I had to give up some space, but there will still be 6' of head clearance throughout most of the sub, and 25 feet in length gives me plenty of room for everything I want inside.

Monday, June 27, 2011
A major design evolution has occured. After struggling with the engineering challenges presented by my original design (namely, that I wanted a flat-roofed craft and resisted the conventional cylinder shape of most submarines), I have finally succumbed, and have re-designed my sub to be cylidrical in shape. I am still employing the external "Ballast Tank / Pontoons" from my original design becuase I still want substantial freeboard, so that I can pilot the sub on the surface by seeing out the front viewports.
In this front view of the new cylindrical design, you can see tht the ballast tanks/pontoons are quite large (4 feet in diameter) and protrude from the main body of the sub at a 45 degree angle, to improve stability on the surface.
The new interior floor plan as well. The sub is over all a bit longer now, so I have added a full foot to both the diver lockout chamber and the passenger area. The engine room was also expanded by a foot. This made more room for the W.C., which is also now a foot longer. Overall more spacious, while reaping the benefits of the cylindrical hull design.

Tuesday, June 14, 2011
I new version of the bottom view, showing the diver lockout hatch, rudder array, flood lights and anchor. You also get a better idea of the scale of the ballast tanks.

Sunday, June 12, 2011
This is the latest evolution, and the design that feels the most final to me. I have added 4 feet to its length, which allowed me to expand both the engine room and the passenger area by 2 feet each. I also finalized the shape and proportions of the ballast tank/pontoons on the bottom. This will be a design that lets me ensure I have more than enough excess buoyancy, with plenty of freeboard when on the surface, and still the ability to take on plenty of water to sink the boat when the time comes.
A detailed view of the new interior floor plan, with expanded engine room and passenger area. This new design give me the room I needed in the engine room for the air compressor, and allowed me to expand the galley area a bit. The dive planes have also been shortened by a foot.
The most detailed front view yet. This includes the new outward sweeping ballast tank supports that give the whole sub a new look. Note that the dive planes will pivot up 90 degrees for travel.

Wednesday, June 1st, 2011
I have moved the conning tower and entry hatch back to the rear so that I could move the engine forward. This will allow me room to have a rudder assembly aft of the prop, both of which will be underneath - between the pontoons.
Updated side view showing the position of the conning tower after the above change.
Front view now showing the prop between the pontoons, with rudders behind it.

Wednesday, May 31, 2011
The latest interior plan, with measurments.
A new side view showing the dive plane dimensions and the shape and placement of the ballast tank/pontoons on the bottom.
A front view of the new design, again showing the ballast tank/pontoons on the bottom.

Wednesday, May 25, 2011
Have made the sub longer and leaner. Reduced the overall displacement from 152,000+ to 88,000 lbs. She is now only 8 feet wide, but 25 feet long.

Tuesday, May 24, 2011
This is the latest re-vamped design. I have made the control room in the bow much smaller, and allowed for deeper ballast tanks by adding 2 feet to the vertical height.
A side view of the new design. This shows how much farther down the ballast tanks will now extend. This was necessary to achieve the 25% reserve buoyancy I needed.

April & May, 2011
My first sketch of the front view of the sub, with detail of the forward-facing view ports. Also the design of the structural supports. It looks like to achieve the size and shape I want, I am going to need a lot of these!
Reversed the positions of the air compressor/tank storage with the bathroom. Makes more sense the way they are now, plus meant I could add 6" to the bathroom..
This is the most detailed interior plan to date. I still believe 20' of length and 10' of width will be plenty of room for what I need it to do.
The matching side view, showing a new idea for where I can store the "surface module" (as I am calling it - I'm sure it has a real name). This will house a GPS antenae, a cell-phone repeater, etc. and will be able to be released to the surface from any depth, and retrieved via winch. Detailed plan to follow.
My first overview design of the 20 footer. I plan it to be more functional than streamlined, so pretty it ain't
Another early sketch to show the top mounted, wide-viewing port I wanted on the top front.
A close-up view of the sterring baffles that will provide steering, as the prop and shaft will be fixed to the internal motor.
A diagram of my "dream" aft cabin. there is a small Head, and a small Galley, as well as scuba tank storage and an air refilling station.
To get the sub from my house to the water, I am going to need a trailer too. I am lucky to live less than a mile from a nearby deep lake, where I will perform all my initial trials, and less than ten minutes from the mighty Kennebec River, which leads directly to the ocean. My plan (when I am ready for sea trials) will be to launch in the river, remain on the surface until I reach the ocean, and then dive!
This page was last updated: 10/31/2011