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New London Ship and Engine Company

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New London Ship and Engine Company
IndustryDiesel engines
Founded1910
FounderLawrence York Spear
FateDissolved circa 1925
HeadquartersGroton, Connecticut
Key people
ProductsDiesel engines

The New London Ship and Engine Company (NELSECO) was established in Groton, Connecticut as a subsidiary of the Electric Boat Company to manufacture diesel engines.[1]

History

Electric Boat acquired a license to manufacture MAN diesels, probably in 1909.[citation needed] These were initially manufactured by the Fore River Shipyard of Quincy, Massachusetts, where most of Electric Boat's early submarines were built under subcontract. NELSECO was established in Groton to take over diesel manufacturing from Fore River when difficulties were encountered, finishing the work on engines begun by Fore River. It was a subsidiary of the Electric Boat Company for its entire existence. The E- and F-class submarines, launched 1911–12, were initially equipped with these diesels; they were replaced in 1915 as NELSECO's initial efforts were unsatisfactory.[2][3] The company was incorporated on 11 October 1910, with production starting in July 1911.[4] [5]

The company built the engines for first diesel powered yacht in America, Idealia, launched by the Electric Launch Company (Elco) in 1912. Idealia was owned by ELCO into 1916 and used for demonstrating the application of diesel engines in yachts.[6][7][8] The original Idealia installation was a reversible, air started, two cycle engine with six working cylinders and a two-stage air compression cylinder that was rated at 150 horsepower at 550 revolutions per minute.[6][7] The original two stroke engine was replaced by a NELSECO 120 horsepower four cycle engine by February 1915.[9][10]

The company was probably disestablished around 1925, as the last United States S-class submarine was completed in that year, and no subsequent US submarines were equipped with NELSECO engines. Electric Boat had a drought in submarine contracts 1918–1931, which probably caused NELSECO's demise.[11]

Founders

Legacy

Nelseco Navigation Company (a.k.a. Interstate Navigation Co.) operates ferry service to Block Island in Rhode Island. At least two ferries have been named NELSECO. One was launched in 1917 and scrapped circa 1972 and the other was launched in 1981 and scrapped circa 2010.

See also

References

Citations
  1. ^ "Electric Boat". navyleague.org. Archived from the original on 18 February 2010. Retrieved 25 February 2010.
  2. ^ Weir, p. 15–16
  3. ^ Gardiner, p. 127–128
  4. ^ "The New London Ship and Engine Company". The Day. New London, Connecticut. March 11, 1915. p. 3. Retrieved 25 February 2010.
  5. ^ Speed-Up, from Submarine Boat Company, NELSECO Motors, 1923
  6. ^ a b "Motor Yacht Equipped With Diesel Engines". International Marine Engineering. Vol. 18, no. 4. April 1913. pp. 163–165. Retrieved 10 October 2018.
  7. ^ a b "America's First Diesel Yacht". Motor Boating. Vol. 10, no. 3. September 1912. p. 24. Retrieved 10 October 2018.
  8. ^ Forty Eighth Annual List of Merchant Vessels of the United States, Year ended June 30, 1916. Washington, D.C.: Department of Commerce and Labor, Bureau of Navigation. 1916. p. 83. Retrieved 10 October 2018.
  9. ^ "Yacht Diesel Engines". The Rudder. Vol. 31, no. 5. May 1915. p. 232. Retrieved 10 October 2018.
  10. ^ "New London Ship & Engine Company". The Rudder. Vol. 31, no. 2. February 1915. p. 81. Retrieved 10 October 2018.
  11. ^ Hamilton, Robert A. (2015). "EB, the No. 1 sub maker". General Dynamics Electric Boat. Retrieved 29 May 2015.
  12. ^ Personal section, The Marine Review May 1913, p. 170
Bibliography


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