.....Well Peter Madsen has infected me with diesel boat disease! :) To the point of giving Alvin Jr. major cosmetic surgery. So may I introduce.... NR-2., http://www.frappr.com/?a=viewphoto&id=269116&pid=5807634 ....a facsimile inspiration of the Navy's NR-1 sub but still using the Kittredge platform... http://www.jasonproject.org/jason7/nr1/index.html
As before, input from the list is invaluable as Alvin Jr. was the result of this valuable input. This is about the size of Freya, target weight within handling limits of a fifth wheel utility trailer, to be slung in by a marina. That box keel you see houses a single battery pod and two VBT's at each end however, access, draft, and dropable ballast issues are apparent..(still to be determined).
It occurred to me while perusing my various ideas for my great retirement project, that trailer boats get fairly infrequent use anyway. For that matter, so do marina boats, (been there done that)! ...So why not go for it! ... the maximum size and amenities that I could still store between use. Maintaining and upgrading systems would be part of the fun anyway.
I can tell you now, that this will be a shallow water boat, not unlike both Freya, and Kraka, for the same reasons. I will do the ABS calculations once I have a solid concept to work with. This is fine with me, Andrea Doria depths scare me anyway, so if I can't get there, I wont try!
I have two major questions to be answered early on.
#1 Diesel electric Which way to go . An engine turning a prop...or a generator running everything else?? Could I ask those Minn Kotas to do continuous duty for long transits or not even though they are submerged?
#2 1/4" or 5/16"?? Not looking for depth capability here so much as corrosion allowance and extra weight gain. NR-2 at this point, has 108 cu feet of submersible volume. More weight in structure is less carried in lead but, what do I give up in terms of workability with that added 1/16th??