Buoyancy control system for an airship
Convertible airship
Convertible airship
Crown balloon system
Cruise airship with an anchoring device and a helium...
Cyclorotor composite aircraft
Delta-winged hybrid airship
Device and method for affecting local climatic parameters
Device and method for sealing and lighting a balloon
Device and method for sealing and lighting a balloon
Direct mounted propulsion for non-rigid airships
Dirigible airship
Dirigible airship
Dirigible balloon rigidified by helium tanks
Dirigible, especially non-rigid dirigible
Discoid airship
Dual hull airship controlled by thrust vectoring
Dual hull airship controlled by thrust vectoring
Electrical energy depletion/collection system
Electrically non-conductive suspension cables for hot air balloo