US Civil Airways

304 flights ... v02                           Complete route guide for Green Airways                    Revised Altitudes
With many thanks to Mark Thomas, DC3-338

1940 Civil Routes ... NW United States

Civil Airways in 1940, NW United States.

Here is a map of the entire US.

In the era of the DC-3, a color and a number identified Civil Airways in the US. East-West airways were Green or Red and North-South airways were Amber or Blue, as seen in the map above. Appropriate legs of four-course radio ranges established these airways.

Here are the Radio Range Stations in the NW United States in 1940. These stations transmitted signals on four separate courses, hence the name "Four-Course Radio Range." You can see that the "interconnection" of the legs of adjacent stations form an Airway.

Here you can see a map of the entire US.  To download a high resolution version click here.

Now, thanks to Mark Thomas, DC3-338, we can fly these Civil Airways in a fashion similar to the early days of navigation. Mark has recreated almost the entire 1940 US Civil Airways system with a network of VORs and airports.

The download file includes five files and a Readme file

The simple Airways routing eliminates the need for FSN Flight Plans.

Note the "Revised Altitudes" link at the top of this page. Altitude data was verified by actual flights for 104 routes, mostly in the mountainous regions. Another 120 or so were verified by other means, and the rest were "Educated Guesses" ... some of which may need adjustments. Click the altitude link for the latest altitude information. If you find that a suggested altitude is not correct or optimum, please Email us and we will update the Flight Table. Check the version number of the Altitude link to be certain that your information is current.

While the Flight-Information tables are simple, it is important that you read the Readme file for a brief explanation on how to fly these routes. And be sure to enhance your experience of flying these Civil Airways by loading Real Weather.

Thanks again to Mark Thomas for this fine effort.