Encyclopedia
Aerostat
10) "aerostat" - a flying apparatus whose lift is based on aerostatic or simultaneously aerostatic and aerodynamic principles. Aerostats are divided into piloted, automatic, tethered, and free;
Source: Order of the Minister of Defense of the Russian Federation No. 136, Ministry of Transport of the Russian Federation No. 42, Roscosmos No. 51 dated March 31, 2002 "On Approval of Federal Aviation Rules for Flights in the Airspace of the Russian Federation" (Registered by the Ministry of Justice of the Russian Federation on July 24, 2002 No. 3615)