Patent ID: 8544797
Filing Date: 2013-10-01
Classification: B64B

Abstract:
1. A system for controlling the lift of an airship for carrying a cargo and a supply of fuel comprising: a self supporting hull made of a flexible gas impermeable material; a first gas located in the hull at an internal pressure which is greater than the atmospheric pressure of the air on the outside of the hull; a bag filled with a lighter than air gas located within the hull and surrounded by the first gas; a heating means coupled to heat the first gas and the lighter than air gas; at least two airship thrusters coupled to urge the airship to travel to a selected destination using the fuel carried by the airship; and a gondola coupled to the self supporting hull; wherein the bag located within the hull and surrounded by the first gas has enough lighter than air gas in it at ambient temperature to lift all but the cargo and some of the fuel in the airship; wherein the first gas and lighter than air gas when heated provides increased buoyancy due to increased of both expansion of both heated gases to lift the airship with its fuel and cargo.