Feasibility research on traditional-shape stratospheric airship

Stratospheric airship is capable of station-keeping at high altitude in precondition of the balance of buoyancy and weight and of thrust and drag. Based on computation process, when some initial technology guidelines and conditions are supposed, the size of airship is gained and it is analyzed that certain technology guideline has more or less influence on length and payload of airship. It is concluded from the analyses that envelope mass/area ratio had the largest effect on key elements of airship, such as length and payload etc. Meanwhile, based on some available design parameters of typical traditional-shape airships being in development, the envelope mass/area ratio required for corresponding airships is scheduled for station-keeping at destine altitude and several technology approaches are proposed.