: Rely entirely on internal gas pressure to maintain their shape.
: Feature an internal structural framework that holds the gas cells and maintains the ship's shape regardless of gas pressure. lighter-than-air craft
: Powered, steerable aerostats equipped with engines and control surfaces like rudders and elevators for navigation. : Rely entirely on internal gas pressure to
Lighter-than-air (LTA) craft, also known as , operate on the principle of buoyancy—displacing a volume of air with a gas that is less dense, thereby creating upward lift. Unlike airplanes, which rely on aerodynamic lift generated by movement through the air, LTA craft can remain aloft while stationary. 1. Types of LTA Craft also known as
The choice of gas determines the lift capacity and safety profile of the craft: