A RIGID Airship is a type of airship that has an outer shell made of a metal or other RIGID material, such as aluminum or steel. This type of airship is also known as a Zeppelin, after the German Count Ferdinand von Zeppelin who pioneered the design in the early 1900s. RIGID airships are typically larger than non-RIGID airships, and they are able to carry heavier loads. They are also more stable in the air, making them ideal for long-distance travel.