lighter-than-air craft

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Thân thiện
Definition

Noun 1. Aircraft supported by its own buoyancy: A type of aircraft that achieves flight primarily through buoyancy, using a gas (such as helium or hot air) that is less dense than the surrounding air to generate lift. This contrasts with heavier-than-air craft (like airplanes and helicopters), which generate lift through aerodynamic forces.

Usage
  • The term is used to categorize and describe aircraft whose fundamental operating principle is aerostatic lift (buoyancy).
  • It is often used in technical, historical, and general aviation contexts to distinguish this class of vehicles from others.
Examples
Advanced Usage
  • The term can be used in discussions about aviation history, physics of flight, and aerospace engineering.
  • It can appear in formal classifications, such as in regulatory documents from aviation authorities.
Variants and Related Words
  • Airships (n): Powered, steerable lighter-than-air craft.
  • Blimps (n): Non-rigid airships.
  • Dirigibles (n): Another term for steerable airships.
  • Balloons (n): Lighter-than-air craft that are not powered or steerable in the same way as airships; they travel with the wind.
  • Heavier-than-air craft (n): The direct categorical opposite, referring to aircraft like airplanes and helicopters that rely on aerodynamic lift.
Synonyms
  • Aerostat: A technical synonym for a lighter-than-air craft.
  • Buoyant aircraft: A descriptive phrase with the same meaning.
Related Phrases/Idioms
  • : A phrase referring to the historical period when airships were a primary mode of air travel and exploration.
  • : Refers to the engineering and principles behind such aircraft.
Noun
  1. aircraft supported by its own buoyancy