In the 1920s, what government organization built giant concrete arrows across the U.S.?

Here is the question :

IN THE 1920S, WHAT GOVERNMENT ORGANIZATION BUILT GIANT CONCRETE ARROWS ACROSS THE U.S.?


Here is the option for the question :

  • Air Traffic Control Association
  • Department of Commerce
  • Amtrak
  • Census Bureau

The Answer:

And, the answer for the the question is :

Department of Commerce

Explanation:

[STC00128] The United States established its first coast-to-coast airmail delivery line in 1920; nevertheless, successfully completing the trip was not an easy task.

It had just been 17 years since the invention of the airplane, and there were very few aviation charts available to aid airmail pilots along the 3,000-mile voyage to deliver packages.

The construction of the Transcontinental Airway System was undertaken by the Department of Commerce and its Bureau of Standards Aeronautical Branch in an effort to assist in the resolution of the issue.

This system is comprised of a number of beacons and enormous concrete arrows that are designed to assist pilots on their journey across the country.

By 1929, the line of arrows had been extended from coast to coast, making it possible for airmail to travel securely from the Atlantic to the Pacific in around thirty hours.

The system was officially decommissioned in the 1940s with the rise of radio and radar, but over 100 of the concrete markers still exist today.