dirigibles

Dirigibles, also known as airships, are large, steerable aircraft that maintain their shape through a gas-filled envelope, traditionally filled with lighter-than-air gases like helium or historically hydrogen. They use engines and rudders for propulsion and direction, allowing them to hover, navigate, and carry passengers or cargo over long distances with minimal fuel. Unlike airplanes, which rely on wings for lift, dirigibles are buoyant due to their gas, making them efficient for observation, advertising, or transportation tasks. Modern dirigibles are appreciated for their stability, quiet operation, and ability to access remote or sensitive locations.