non-rigid airship

A non-rigid airship, also known as a blimp, relies on hydrogen or helium gas for lift but does not have a rigid internal frame. Its shape is maintained by the pressure of the gas inside a flexible outer envelope, which acts like a balloon. When the airship's volume changes due to altitude adjustments or payload shifts, the envelope flexes to maintain its shape. This design makes it lightweight and easier to control. Unlike rigid airships with internal frameworks, non-rigid airships depend on internal pressure to keep their form, providing a versatile and responsive means of lifted flight.