This is a quick overview of a cheap and simple CO2-based ballast system, most useful for larger RC submarines. Thanks for watching! Bob Martin the RCSubGuy www.nautilusdrydocks.com
Cool ... This works the same way that the main ballast tanks on the submarine I was on, the USS George Bancroft, worked except that the tanks on our submarine were full of compressed air. The tanks were refilled with outside air when we were on the surface or snorkeling using an on board compressor.
Hey!! if you can get a compact water pump like a selenoid with piston and check valves , you can just pump water in a aluminum cilinder compressing the air there for lowering bouyansy,it will be a stealthy,no air living the vessel, another could be a metal tank full of water and the pump will be inside pumping water out creating a vaccun within the cilinder,
Bob, could that be rigged to fail closed/open? As in the bleeder valve would be left open to bleed water and air as the boat rises and dives, the blow valve left closed unless power is lost then it would open and the bleeder would close. If it could then it could be used as a power loss emergency blow system to surface the boat if lost. No more calling in a dive guy to find a lost boat.
You can easily rig this in conjunction with a BLM failsafe device. You could also rig a pinhole bleed from the compressed side before the solenoid. It would slowly bleed air into the ballast tank over time, eventually floating the boat. Lots of options!
Perhaps over a long period of time, but that would long, long after you'd be home from the pond with a dry boat after many blow/vent cycles. Water absorption of CO2 is only a few percent. It's not a concern in the slightest.
Hello, I can offer you a file of the model of the submarine pr. 636 in scale 1/50 made according to the drawings. And at the same time there is a printed model with, a length of 152 cm.
