Nahant Indicator Loop Station


by Gerald W. Butler
 

Caricature of USGC Pequot by Jerry Butler 2011

The August 2012 Coast Defense Journal published by the Coast Defense Study Group features a detailed article by author and historian Gerald W. Butler on the indicator loop defenses installed by the Pequot at Nahant, Massachusetts in 1942 as part of the comprehensive installations put in place to protect Boston Harbor. Click here to download a copy.

"Naval Unit 1D - East Point, Nahant, Massachusetts, in World War II, 1942-1945" provides an excellent case study on one of the indicator loop defense systems laid down by the Pequot and details the history of this top secret underwater detection installation from the initial planning stages through the end of the war when the indicator loop station was closed in May of 1945.

A long time associate and supporter of our Pequot website project and Dr. Richard Walding's international research project on indicator loop technology, Jerry's examination of the Nahant indicator loop defense system gives us great insight into the specific work the Pequot and its crew played to put that important harbor defense system in place. Jerry's superb illustrations show how the three legs of indicator loop cable were configured along the coastline and how the shore stations that supported them were put into operation. Jerry has provided us cable samples and numerous photos which show the abandoned indicator loop Operations Building and Administration Building which still exist today along the rugged coastline of the Nahant Peninsula.

For more information and additional photographs about the history of this indicator loop receiving station visit Dr. Richard Walding's East Point Nahant Indicator Loop Station web page.

 

Ruins of the Nahant indicator loop shore stations 2012

 

Captain Jerry Butler along the Atlantic Coast 2011

Gerald W. Butler, a captain in the Massachusetts State Guard, was the former curator of Fort Warren and Fort Independence, Boston Harbor, and Fort Rodman, New Bedford. He has published numerous books and periodicals on seacoast fortifications. He lectures and serves as a consultant to military museums and state parks, and was the former historian for U.S. Navy mine units. His detailed illustrations of seacoast fortifications are published worldwide. In November of 2012 he published Nahant's Naval Secrets which details the history of military maritime activities and harbor defense efforts around Boston Harbor on the Nahant Peninsula from World War I though the end of World War II. This book has an extensive section on the installation of indictor loops laid down by the Pequot and tells how planning for those undersea defenses began in 1941 well before Pearl Harbor, their use during WWII, and what remains today of the shore stations which supported this top secret operation during the Battle of the Atlantic. The Pequot website and veterans contributed to Jerry's research.
 

This 195 page book highlights the role of the Pequot and tells the story of how the officers and men conducted cable laying operations off the coast of Massachusetts in 1942. To order a copy directly from the Nahant Historical Society just click the thumbnail of the book cover above left.

Jerry Butler has published numerous books and periodicals on seacoast fortifications. He lectures and serves as a consultant to military museums and state parks, and was the former historian for U.S. Navy mine units. His detailed illustrations of seacoast fortifications are published worldwide.  His publications include:

 
  • Military Annals of Nahant, Massachusetts
     
  • Military History of Boston's Harbor Islands
     
  • Fort Warren - the Key to Boston Harbor
     
  • The Guns of Boston Harbor: from the Bay Colony to the Present
     
  • The Military History of the Cape Cod Canal
  • Jerry has resided in Nahant, Massachusetts since 1949.

    Indicator Loops - an overview (YouTube, 70 minutes)

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      East Point Nahant Indicator Loop Station

      United States Navy Loop Stations in WW2

      Indicator Loops around the World