Lighter-than-air — Craft

: Powered, steerable aerostats equipped with engines and control surfaces like rudders and elevators for navigation.

The choice of gas determines the lift capacity and safety profile of the craft: lighter-than-air craft

: Rely entirely on internal gas pressure to maintain their shape. : Powered, steerable aerostats equipped with engines and

: Use a partial keel or frame to support the envelope and distribute weight. 2. Lifting Agents lighter-than-air craft

LTA vehicles are broadly categorized into unpowered and powered versions:

: Feature an internal structural framework that holds the gas cells and maintains the ship's shape regardless of gas pressure.