Lighter-than-air Vehicles

Lighter-than-air vehicles are aircraft that rely on their buoyancy to stay aloft. They are typically filled with a gas that is less dense than air, such as helium or hydrogen, which provides the lifting force. Lighter-than-air vehicles include blimps, dirigibles, and hot air balloons. They have been used for a variety of purposes, including transportation, military surveillance, and scientific research. While they are not as fast or maneuverable as other types of aircraft, they have the advantage of being able to stay aloft for long periods of time and can operate in adverse weather conditions. However, they are also more vulnerable to wind and require large hangars for storage and maintenance.
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