. Bell Telefon Magazin . E flog in einer Höhe von 3.000 Fuß; dass er erwartet, über Coney Island, der nextcheck Punkt, bei 13 Minuten nach IP.M. und über La Guardia, seinem ter-minal Flughafen, bei 18 Minuten nach IP.M. fahren Die Flughafenfunkoperatoren Roger sagte dem Kapitän, dass er die Nachricht enthielten, und er wiederholte sie dann zu Kontrollzwecken und fügte die Information hinzu, dass der BA-Rometer-Messwert am Flughafen 30:23 war. Dies der Kapitän quittiert-eingefasst, und wiederholte für die Überprüfung, und dann stellte er seinen Höhenmesser auf die Kollsman Lesung sicher, dass Guardians of the Skyways 189
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. Bell telephone magazine . e was flying at an altitude of3, 000 feet; that he expected to ar-rive over Coney Island, the nextcheck point, at 13 minutes after iP.M. and over La Guardia, his ter-minal airport, at 18 minutes after iP.M. The airport radio operatorsRoger told the captain that he un-derstood the message, and he thenrepeated it for checking purposes andadded the information that the ba-rometer reading at the airport was30:23. This the captain acknowl-edged, and repeated for checking, and he then adjusted his altimeter tothe Kollsman reading to be sure that Guardians of the Skyways 189 he knew his exact altitude. The ra-dio operator at the airport made awritten record of this informationand immediately reported it to thetraffic control office of the Civil Aero-nautics Administration, which super- the captain advises the radio opera-tor that he is changing over; thatis, switching to the radio frequencyof the control tower at La GuardiaField, which assumes control of theplane for landing, gives the captain. A COMMERCIAL planes officcrs have ready contact by radio telephone with the C.A.A. control tower while at and near the airport, and with the office of their companys flight superintendent at other times during flight vises the flights of all airplanes flyingover the Federal airways. Over Coney Island, the next checkpoint on the route, a similar proce-dure is followed except that after theinterchange of information betweenthe captain and the radio operator the necessary information as to winddirection and velocity, barometricpressure, other nearby planes in theair, and directs him to the proper run-way at La Guardia Airport. Afterhe lands and taxis to the position as-signed to him, he switches back to his 190 Bell Telephone Magazine AUTUMN own radio operator and reports histime of landing. Thousands of messages of thistype fill the air today and they allhave to do with the operation safelyand on schedule of more than 500commercial transport planes and the pr
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