it would control up and down, but direction would be greatly affected by the currents. If you know the ocean currents, you can float like a bottle and get across the Atlantic. You could probably solar-charge the navigation & steering for a sailboat. But, there is a solar-power car race in Australia so maybe a solar boat is also feasible. I did some quick research and quick calculations, and it looks like you can about 1 horsepower from a 35 square-foot solar panel under ideal conditions (at noon on the equator). I don't know if you could get enough energy to overcome current (or wind if it's not a sub) if the current/wind is in the opposite direction. I'd be surprised if you could power it with solar. You could simply stick the antenna above the surface once per day and use a compass while under water to head in the right direction (regular-old dead reckoning). However, you wouldn't need constant GPS communication. That's why speedboats skim across the surface with minimal water displacement. And, the more water you "push" the more energy you waste so submerged it takes the most energy. (You are pumping-out water against the pressure of the depth.)Ī couple of problems with a submarine - If it's solar powered it needs maximum sun exposure so you'd want it on the surface all day. The concept of the conservation of energy means it takes a certain amount of energy to move the thing and I doubt that's the most efficient way of doing it. It again slides forward with very little energy. When you reach the maximum depth, pump out some water until the boat has positive buoyancy and put the bow up. You might catch the eye of the navy for several countries. And would probably make, and deserve, world news headlines if successful. But now that is getting into one heck of a lot of planning and engineering. Then you gotta to things like listen for noise and be sure you are below 50 or maybe 100 feet until the noise is gone. There will probably be several up downs for each battery charge. And very important: minimum hull penetrations. No screws, no propulsion motor, and essentially no noise at all. ![]() But the key is to use gravity and slide forward as you go down. I don't know how much down angle on the bow is required, or how much flat area the boat needs to produce thrust. Control the angle of the bow giving it a slight down angle so that as the boat goes down it slides through the water. Let water in until it has moderate to significant negative buoyancy, heavy and sinks. Sit on the surface and charge the batteries. ![]() There is a rather cool propulsion concept for submarines. Ok, that is a bit absurd for a project that someone is asking about in a forum like this. It is very much just an idea and I would love to hear any feedback, even if it is just a learning exercise.Įdit: I am thinking solar power as a recharging method. I would like to be able to control it to make a journey across the Atlantic ocean to my friend who lives in Germany. I know that the data would not work well if at all underwater, maybe I could have a small floating probe with the GSM antenna on it, or I could just not go anywhere below the surface and it would be a surface submarine (still fun to me). I would use an international SIM card to communicate with my web server which would allow for two way communication. The plan would be to create a remote control submarine that is semi-intelligent, has a GPS module and a GSM module. I don't remember why I want to do this but I do. ![]() I see that there are many RC Submarine tutorials on YouTube and I am gaining inspiration from them. ![]() I would like to start off by saying that I know that this is crazy, but I want to just see the feasibility of such a project.
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