The Nome nugget., 1941-06-18
New Airway Setup Groups US. And
 Canadian Facilities

the closest of collaborators. will i appear on a new map entitled Civil AirWays of the United States and Canada"
 This mutual agreement 10 con- sider grouping the 4.165 miles of the Canadian system with the 36.375 miles of the U. s. system has been made possible by the re-de: ignation and re-numberinc of airways on both sides of the border. Thus the Canadian trans continental route is AirWay No l of the new set-up, and our transcontinentals, reading from north to south, are Nos. 2, 3. I 5 and 6. Canada also adopted our method of designating airways by colors as a part of the basic sys- tenn cf airway traffic control.
 AS soon as possible after July l. all civil airWays of the country will be placed within the control of AirWays Traffic Control cen ] ters. This will mean the establish ment of nine more traffic centers. at Boston, Jacksonville, Memphis San Antonio, Kansas City. Albu- querque, Denver, Minneapolis and either Butte or Great Falls These centers, added to the + already ln operation, will bring the whole system under a unified control.
 Main tranScontinental routes are designated green airways and main north and south airWays are amber. Secondary transcontinent al routes are red and secondary north and south are blue. For control of traffic under conditions of instrument flying, the green airWay traffic has right of way, or priority. Amber airWay traffic gives way to green, red traffic gives way to amber and green, and blue gives way to all others. East bound traffic flies at odd thousand foot levels, westbound at even; northbound at odd, and southbound at even.
 1 Priority means that when a pilot flying an amber airways de slres to cross a green airWay, for example, he ascends 500 feet from his required altitude in making the crossing, Since the piolt on the green airWay main ta.ns his altitude steadily, they are thus separated by 500 feet in altitude. Airways are 20 miles wide, and pilots must cross at , an angle of not less than 45 de- grees.
 Many minor changes have been made in the airWay system CO., incident with the inclusion of the Canadian system. These are ne- cessitated periodically by the re- alignment of the courses laid down by radio ranges, installa- ten of additional radio facilities, changing conditions along the air ways such as increased military flying, bombing or gunnery in a given area, and permission by the CAA for instrument flying over new sections of existing routes. All these changes effective June are included in the CAA's May 22d issue of Weekly Notices to Airmen."
 They include the addition of airWay routes in small sections to the extent of 1900 miles, and an increase of l400 miles of airway placed within the areas controll- ed by the existing airway traffic control centerS. No major chang es have been made.
 Military traffic along the air way recently has increased con- siderably The monthly summary of arway traffic control opera tions indicates that 99,155 clear ances were issued to airline and itinerant pilots, and 62,68l issued to Army, Navy and Coast Guard pilots during the month of April. These figures do not include the great number of civilian and mill tary pilots who use the airways and do not file flight plans or get clearances. CAA officials antici- pate very large increase in mill tary use of the airways within the next year.
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