Why? Interesting Stories, Fun Facts, Questions & Answers about Science, History, Pop Culture, Traditions and More by Riddleland

Author:Riddleland [Riddleland]
Language: eng
Format: epub
Published: 2022-10-24T22:00:00+00:00

The flashing rear end devices gradually began to be called “Fred”. At first, they were “flashing rear end devices”; that was shortened to the acronym “F.R.E.D.”; and soon, instead of people saying, “I have the F– R -E- D”, they simply said, “I have Fred.”

Some of these end-of-train devices ETD) not only flashed a warning to other trains, but they also gathered data and sent this data to the engineer’s computer, known as the head-of-train device (HTD). Since “Fred” was the name of the rear device, the head-of-train device affectionately became known as Wilma. (Do you remember Fred and Wilma Flintstone, the modern stone age family, who lived in Bedrock? Yabba-dabba-doo if you have heard of this early 1960s cartoon!)

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