Airship — lighter-than-air powered aircraft Airship An airship is a powered, steerable lighter-than-air aircraft that remains aloft using a buoyant gas. It includes rigid, semi-rigid and non-rigid types and has roles in transport, p…
Aviation: Principles, History, Roles, and Contemporary Issues Aviation A concise overview of aviation covering principles, components, history, civil and military uses, regulation, safety, environmental issues and current technological trends.
