§ 240. Definitions. When used in this article,\n 1. "Aircraft" means any contrivance, now or hereafter invented, for\navigation of or flight in the air, except a parachute or other\ncontrivance designed for use, and carried primarily for safety\nequipment.\n 2. "Avigation" means the steering, directing or managing of an\naircraft, in or through the air; and such term is here used as a\nsubstitute for "aerial navigation."\n 3. "Operating aircraft" means performing the services of aircraft\npilot.\n 4. "Landing area" means any locality either of land or water,\nincluding airports and intermediate landing fields, which is used or\nintended to be used for the landing and take-off of aircraft, whether or\nnot facilities are provided for shelter, servicing or repair of aircraft\nor for rec
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§ 240. Definitions. When used in this article,\n 1. "Aircraft" means any contrivance, now or hereafter invented, for\navigation of or flight in the air, except a parachute or other\ncontrivance designed for use, and carried primarily for safety\nequipment.\n 2. "Avigation" means the steering, directing or managing of an\naircraft, in or through the air; and such term is here used as a\nsubstitute for "aerial navigation."\n 3. "Operating aircraft" means performing the services of aircraft\npilot.\n 4. "Landing area" means any locality either of land or water,\nincluding airports and intermediate landing fields, which is used or\nintended to be used for the landing and take-off of aircraft, whether or\nnot facilities are provided for shelter, servicing or repair of aircraft\nor for receiving or discharging passengers or cargo.\n 5. "Airport" means any landing area used regularly by aircraft for\nreceiving or discharging passengers or cargo; or for the landing and\ntake-off of aircraft being used for personal or training purposes.\n 6. "Acrobatic flying" means maneuvers not necessary for normal flight\nand intentionally performed by an aircraft, involving an abrupt change\nin its attitude, an abnormal attitude or an abnormal acceleration.\n 7. "Administrator of the federal aviation agency" means the\nadministrator of the federal aviation agency of the United States.\n 8. "Airplane" means a mechanically propelled aircraft, the support of\nwhich in flight is derived dynamically from the reaction on surfaces in\na fixed position relative to the aircraft but in motion relative to the\nair.\n 9. "Control zone" means an airspace of defined dimensions extending\nupwards from the surface of the ground and including one or more\nairports and designated as such by the administrator of the federal\naviation agency.\n 10. "Flight visibility" means the average horizontal distance that\nprominent objects may be seen from the cockpit.\n 11. "Helicopter" means an aircraft, the support of which in the air is\nnormally derived from airfoils mechanically rotated about an\napproximately vertical axis.\n