High altitude airships

摘要: A high-altitude airship has a non-rigid hull. On launch, the is partially inflated with lifting gas. The hull less susceptible to buffeting and turbulence from lower atmosphere air currents during ascent. ballast rotates into flight attitude (e.g., near horizontal) upon reaching desired altitude. low-powered propulsion system may be included propel at Upon completion of its mission, deflated returned using aerodynamic deceleration such as parachute, parafoil ballute.