submersible boat design help

[yileiliu]

hi, i need some help with a boat design. I need to design and build a boat that travels on top of the water, but also can rotate the structure that attaches the sponson to the body such that the boat submerges and travels below the water.

any references or any help in this type of boat design would be greatly appreciated. thanks!

[SeaSpark]

Interesting craft but what is a sponson?

[yileiliu]

it's the flotation devces for the raft. think of the things that make a hydroplane float.

[SeaSpark]

Still not sure what you mean but this is what came up first.

http://www.deepflight.com/subs/wf.htm

[SeaSpark]

At wikipedia found this definition: http://en.wikipedia.org/wiki/Sponson

This definition is very wide, what is the purpose of the sponson you want to rotate?

[Willallison]

Take a look at this thread
Personal recreation underwater vehicle

There is much info on personal subs - plus a pic and some links to the design for a vessel similar to that which I believe you are talking about

[yileiliu]

The boat I have in mind is similar to the one depicted in the picture below. However, I need to make a scale version that is a foot long. The body must also raise out of the water, in the above surface mode. Are there any good references to RC communications that are necessary to make this possible?

[Mayfly]

Most boat of these design would need air and electric from vessel above supplied by cable thus the submerge vehicle would be light and compact without lifesupport and engine on board underwater.

Above design is a good and cheap where the propulsion is just a nitrogen push propeller with float that hold on to the main cabin. This ensure the driver would retain underwater view without the hassel of complicated dive.