R. G. LeTourneau's Overland Trains
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  • YouTuber Calum Visits the TC-497 in Yuma Proving Ground January 26, 2023
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R. G. LeTourneau's Overland Trains

a complete history

R. G. LeTourneau's Overland Trains
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  • DEW Line
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  • Greenland

North American Alert and Warning Networks

  • September 24, 2020
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Pine Tree Line – radar, planned 1946, handed over to Canada on 10Jan55

Mid-Canada Line or McGill Fence – 1956-1965
DEW Line – radio frequency tripwire 1957-1993, most deactivated 1988, the remaining upgraded
Green Pine Network – UHF, designed 1967, phased out in 1987
North Warning System (NWS) – radar, 1988-2025, Ratheon, AN/FPS-117 and short range AN/FPS-124 surveillance radars
Upgrade – As part of the United States Air Force new Arctic Strategy, their is a proposed upgrade occurring in 2025.

Others
The U.S. Navy also operates the Raytheon TPS-71 Relocatable Over-the-Horizon Radar(ROTHR)

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Army Sno-Train image dated April 13, 1956

  • September 19, 2020
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What’s the Difference Between the Sno-Buggy and Swamp Buggy?

  • October 20, 2020
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Presenting at the Alaska Historical Society Annual Conference – October 15, 2022

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  • September 23, 2022
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R. G. LeTourneau’s Overland Trains: a complete history is now AVAILABLE

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  • September 17, 2022
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South Ural State University is Building an “Overland Train”

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Tentative Book Pre-Release Date – September 14, 2022

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About OverlandTrains.com

OverlandTrains.com is a companion to R. G. LeTourneau’s Overland Trains: a complete history. Now available on Amazon.com at https://www.amazon.com/dp/B0BFL91FX6

Recent Articles
  • Sno-Buggy Testing in Greenland with Aircraft Overhead February 6, 2023
  • How Did the TC-497 Overland Train Steer? February 4, 2023
  • YouTuber Calum Visits the TC-497 in Yuma Proving Ground January 26, 2023
  • R. G. LeTourneau’s Last Remaining Tournalaid Homes Face Demolition January 23, 2023
  • Overland Train TC-497 and Buggy Fan Art January 20, 2023
Topics
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