radio navigational
51Persian Gulf — an arm of the Arabian Sea, between SW Iran and Arabia. 600 mi. (965 km) long. Also called Arabian Gulf. * * * Arm of the Arabian Sea. It is 550 mi (885 km) long and has an average depth of 328 ft (100 m). It is connected with the Gulf of Oman and …
52nondirectional beacon — A radio navigational aid that enables the pilot to obtain his bearing from a transmitting station. A transmitter operating in long or medium wave frequencies, or even in UHFs (ultrahigh frequencies), with the code of the station superimposed on… …
53OMEGA — An obsolete ground based, long range, radio navigational aid, in which aircraft position was derived from the phase measurement or phase comparison of VLF (very low frequency) signals in the 10 to 14 kHz band. Every ten seconds, each of eight… …
54Anthorn transmitting station — Location map Cumbria lat=54.911 long= 3.280 width=180 float=right caption= Anthorn transmitting station shown within Cumbria (gbmapping|NY179581)The Anthorn Transmitting Station is located near Anthorn, Cumbria, England and is operated by VT… …
55Yves Rocard — Infobox Scientist name = Yves Rocard box width = image width =150px caption = Yves Rocard birth date = 22 May 1903 birth place = Vannes death date = 16 March 1992 death place = Paris residence = citizenship = nationality = French ethnicity =… …
56Single-handed sailing — The sport of single handed sailing is sailing with only one crewmember (ie. only one person on board the vessel). The term is usually used with reference to ocean and long distance sailing, and particularly competitive sailing. Terminology In… …
57Rocard, Yves-André — ▪ French mathematician and physicist born May 22, 1903, Vannes, France died March 16, 1992, Paris French mathematician and physicist who contributed to the development of the French atomic bomb and to the understanding of such diverse… …
58airway — A control area or portion thereof established in the form of a corridor marked with radio navigational aids …
59London Heathrow Airport — Heathrow and LHR redirect here. For other uses, see Heathrow (disambiguation) and LHR (disambiguation). London Heathrow Airport …
60De Havilland Express — Infobox Aircraft name = D.H.86 Express type = Passenger transport / trainer manufacturer = de Havilland caption = A D.H.86B of the RAF designer = first flight = 14 January 1934 introduced = 1934 retired = status = primary user = Imperial Airways… …
