31. This report made recommendations for the future of the nation's air navigation and traffic control system. 32. Squitter pulses were originally, and are still, used in the DME / TACAN air navigation systems. 33. National Air Traffic Services hold the contract for provision of air navigation services at the airport. 34. These calculations are a basic part of air navigation and dead reckoning, taught to all aviators. 35. His early works, like " Air Navigation ," 36. The TACAN air navigation system on Skyline Ridge was moved 20 kilometers further south to another mountaintop. 37. By September 1942 saw another change of name to the No . 1 Elementary Air Navigation School. 38. The aerodrome also features doppler VHF omnidirectional range and distance measuring equipment, and tactical air navigation system. 39. She left Croydon on 5 May of that year and landed in Australia's 1921 Air Navigation Regulations. 40. Air navigation services continues as a state enterprise under the name LFV ( Civil Aviation Administration ).
