it started as just a bad bit of sketches in a book i got from IKEA. late one night my roommate asked me if it would be possible to build a homemade submarine from over the counter parts and while we joked back and forth about what it would be made of and made up specs about pressure and light something clicked and suddenly i felt that the idea was not as far fetched as it sounded so i drew the first, nameless design without looking in to it. a week later, i decided to start browsing through the web and happened upon Building BOB (<-- insert link) and immediately changed my design and concept. i started looking up motors and motor housing and lights and cameras and light and camera potting and pumps and all sorts of things i had no experience with. when i was done, i had sketched up the schematics for my first to scale design and even went so far as to name and build the frame. the J'SFRi was born but it never left the design stage. it was just too bulky and i hadn't bothered with planning on how to run the electronics through the sub before i had put it together.

the original idea was to have a main house for a camera with two elbows underneath for side propellers and lights that would attach externally. it would have a tail with a propeller and would attach with a tee to the a horizontal motor. it would tether through the top.
the J'SFRi was a little more realistic in design, based heavily off of a design i had found on the web, only the motors would be internal. there was a single hub in the center that branched out forward to a camera and two lights and backward to a single propeller in the back and two on the sides of it to turn. there was a horizontal propeller on the top of the hub.