Lighter-than-air Craft ❲Essential ◆❳

: Unpowered aerostats that drift with the wind or are tethered in place. Pilots primarily control altitude by adjusting the gas temperature or releasing ballast.

: Rely entirely on internal gas pressure to maintain their shape. lighter-than-air craft

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

LTA vehicles are broadly categorized into unpowered and powered versions: lighter-than-air craft