Emergency locator device
Evacuated balloon for solar energy collection
Fabrication process for an envelope, in particular for space bal
Filimonov hybrid dirigible craft
Fluid container with self-sealing capability
Glass balloons and method for making same
Helium balloon
High altitude airship system
High altitude two balloon airship
High-altitude balloon and method and apparatus for making it
High-altitude long-endurance airship
High-aspect ratio hybrid airship
Highly maneuverable powered airship
Hot air aerostat
Hot air balloon amusement ride
Hot air balloon and methods and devices for augmenting buoyancy,
Hot air rescue balloon
Hot air rescue balloon
Hot gas device
Hybrid air vehicle having air cushion landing gear