I believe it is possible to design a pilot-less hydro-electric blimp which would have a propulsion system which never requires fuel and would be based on a Perpetual Motion Machine which uses fluid dynamics in a hydro-electric. First the shape of this thing would be similar to the new shopping mall shade cover on the Las Vegas Strip. An oblong flying saucer shape would be two of these, which would be stacked like pancakes. They would be apart by 1/3 the length of each symmetrically shaped oblong saucers shaped lighter than air blimps. In the middle would be an hourglass shaped unit. Attaching the two blimps, similar to the struts on a Baby Great Lakes Acrobatic Aircraft.
There could be two or even three of these. Each would have a hydroelectric motor with a direct drive propeller. Water tanks would be on both saucers above the hourglass configuration for thrust. There would be circulating tracks perpendicular to the direction of travel of this craft. When the water is depleted on the above tank where the water flows down the blimps would rotate and put the water back on top. This mechanism would be battery powered hooked to hydraulics.
The battery would be trickles charged by solar panel thin membranes on top of the saucers and also a little power by magnetic charges on the inner mechanism of the spinning propeller. This unit would once launched, could fly forever. And never need recharging. The issues with weight of the water providing the dynamic pressure for the at 8.2 pounds per gallon would not be an issue. Because you do not need that much water because you could increase the spin change interval of the saucers. This unit could be made big or small. Micro-hydro powered units are now being used in the houses, which allow condensed water to flow down hill and provide power for the house.
These small units can provide as little as 1-2 amps of power for mini-UAV flying balloons the size of two smashed shoe boxes for aerial surveillance. The solar micro thin cells would also heat the water a little and there for provide additional heat for the helium in side to keep the atoms moving around and providing more life. Depending on the drop of water height and speed of water, you could have the propellers hooked to a counter rotation system where by you could put two propellers front and back of each hourglass strut. The first idea for a use of this devise is to use it to patrol borders in low winds and in high winds tethered but always under power. Right now over our US Mexican border the lighter than air blimps are only up 60% of the time.
A friend in Yuma, AZ a former Boeing Research Engineer living in a Winter Snow Bird park tells me as soon as the blimps go down the flood of illegals come across. They just wait until they stop flying the surveillance blimps and come over in droves. A surveillance blimp needing no fuel has plenty of possibilities for so many applications.
"Lance Winslow" - If you have innovative thoughts and unique perspectives, come think with Lance; www.WorldThinkTank.net/wttbbs