Dirigibles
Dirigibles, also known as airships, are lighter-than-air aircraft that use gas to provide lift and propulsion. They are typically made up of a large, cigar-shaped envelope filled with a gas such as helium or hydrogen, and are powered by one or more engines that drive propellers or other propulsion systems. Dirigibles have been used for a variety of purposes, including military reconnaissance, passenger transport, and advertising. They offer several advantages over other forms of aircraft, including their ability to hover in place and their relatively low fuel consumption. However, they are also more difficult to control than other aircraft, and are vulnerable to weather conditions such as high winds and lightning strikes.
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