>It may be neat to look at electrolysis to generate hydrogen on demand = and use >it to control the submarine depth. Or drop some NiCad cells in the = tank for >emergency surfacing. Add a spark plug for extra thrust! A spark plug??? are you trying to emulate the Korsk? -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu