Given their hovering ability, static lift airships, such as airships and balloons, are proposed as stratospheric platforms flying at a high altitude of 20 km. The shape of the envelope has a major influence on the lift and drag efficiency of an airship. Soundcloud Bot Keygen. Furthermore, the efficiency of a conventional actuator, such as an aerodynamic control surface for stratospheric platforms, is decreased by the low-atmospheric density and flight speed.

Thus, a new type of effector configuration must be proposed. A new multivectored thrust airship called flat peach is proposed in this paper. The name is attributed to the shape of the airship, which resembles a flat peach that is a cross between a ball and a water droplet. Thus, this airship has a smaller drag coefficient than the spherical airship and higher lift efficiency than a conventional airship.

The on board generation of hydrogen as an energy system is very convenient on long permanence airships because the replacement buoyant gas can be. It demonstrates the necessity of using hydrogen as buoyant gas in long endurance airships because of the easiness of replacement. Download fulltext PDF. Because of their ability to naturally float in the air, indoor airships (blimps) are widely used as research platform in aerial robotics. Lecture Notes in Computer Science, 929:704–720, 1995. Khoury and J.D. Airship Technology. Cambridge University Press, London, 1999.