![]() The propeller is turned by an electric motor either on the surface or submerged. Some air is pulled through the diesel itself and goes out with the exhaust. Couple of fans circulate cooling air through the hull. So when on the surface, you run the diesel with the hatch open. So I feel like it's somewhat dangerous to spend a lot of time just below the surface. 2nd reason is that out in a lake, if your near the surface snorkeling, boats can't see you very easily and I can't see them easily either, even with some sort of periscope or camera system. 1st issue is that the engine I want to use is air cooled and I don't think I could get enough air flowing through the hull to keep it cool inside. As far as a snorkel system goes, I thought about it, but I decided against it for a couple of reasons. Thanks! Hopefully I actually finish the thing. After the model is finished, I'll make a full scale mock up of at least part of the sub from 1/2 electrical conduit. It's mostly to help see where things on the outside will fit. The model won't be exactly to scale, but close. At the moment I'm working on a model of what the full sized one will look like. I have most of the idea roughed out with solutions for most of the problems I'll run into during the build. My plan is to have a Diesel 10hp yanmar clone running a couple alternators and an air compressor. Actually, there are a decent number of mini submarines out there, but most are just battery powered and are meant for staying in one general spot. Then with a bit of cutting, rearranging, and welding we're supposed to end up with the worlds smallest fully self sufficient diesel electric submarine. The basic idea is to get some 250 gallon propane tanks to use for the hull. Finally starting to plan out my submarine project which I've wanted to do for quite awhile.
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