| 41. | Between August 1945 and January 1946, the airfield was home to No . 10 Air Navigation School.
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| 42. | Traditional air navigation uses ground-based radar beacons that let pilots and air-traffic controllers track a jetliner's location.
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| 43. | GPS receivers used in air navigation have databases which contain named waypoints, radio navigation aids, airports and heliports.
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| 44. | The airline was established as the national carrier under the Air Navigation and Transport Act ( 1936 ).
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| 45. | During this period he wrote a series of engineering books covering internal combustion, road transport and air navigation.
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| 46. | His knowledge of air navigation put him in demand with pilots in the late 1920s and early 1930s.
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| 47. | The A6 is an alliance of some of the main European Air Navigation Service Providers ( ANSPs ).
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| 48. | In 1960 the staging detachment was changed from a fighter to a TACAN ( Tactical Air Navigation ) unit.
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| 49. | During World War II, he taught at Wesleyan and at the Air Navigation Flight Preparatory School in Middletown, Conn.
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| 50. | The Department of Commerce improved aeronautical radio communications, and introduced radio beacons as an effective aid to air navigation.
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