The Germans had developed a series of radio aids for this, notably the X-Ger�t system, but the RAF initially pooh-poohed this approach, claiming it only demonstrated the superiority of their own approach.
12.
In addition to flying eight sorties on Super Dimona, a cadet is taught subjects like aerodynamics, navigation, aero engines, instrumentation, aviation medicine, airmanship, airframe, avionics & radio aids, meteorology, GSK and air power.
13.
CHS produces and maintains seven volumes of Tides and Water Levels books, 25 Sailing Directions books, and prints and distributes a number of publications such as the Annual Notices to Mariners and Radio Aids to Marine Navigation.
14.
"' AirNav . com "'is a supplemental resource for radio aids, ownership information and other pertinent information that all pilots need when traveling into or out of an airport or around the United States National Airspace System ( NAS ).
15.
In October, 1919 Commander Hooper instructed A . Crossley, an expert radio aid, to develop and test the concept on a larger scale at the launch for the first round of tests before moving to a steel-hulled submarine for later tests.
16.
When in 1926 the United States Congress passed the Air Commerce Act to fund radio aids to air navigation, J . Howard Dellinger of the National Bureau of Standards tapped Pratt and Harry Diamond to create a suitable radio beacon system in 1927-1928.
17.
The old system is a network of more than a thousand radio beacons, used like lighthouses, in long-distance navigation, a similar number of radio aids that help airplanes approach runways, and about 100 long-distance radars, used to help controllers on the ground determine the location of planes.
18.
At Pino Torinese, which is located between Chieri and Baldissero Torinese, southeast of Turin, there was a VDF radio station ( VHF direction finder ), to provide a QDM ( magnetic course to be taken on a head on approach as a radio aid ) on request.
19.
It was called RDF, for radio detection finding, but in a gesture of noblesse oblige after sharing the technology with the United States, whose scientists called it radio aid for directionfinding and ranging, once the Battle of Britain had been won, the British adopted the American terminology and called it radar.
20.
Sister units " JG 301 " and " JG 302 " were also formed on similar lines at this time, collectively brought together as " FuG 350 Naxos Z " passive homing detector and the latter with the " Y " interception radio system; initially the single-seat fighters used no radar or radio aids.
