USS Canonicus (ID-1696)

The second USS Canonicus was the Southern Pacific freighter El Cid temporarily converted for planting the World War I North Sea Mine Barrage. Newport News Shipbuilding and Dry Dock Company launched El Cid at Newport News, Virginia on 7 October 1899 for service between New York City and Gulf of Mexico seaports of New Orleans and Galveston, Texas. The United States Shipping Board took control of the ship from Southern Pacific Steamship Company in 1917.

For other ships with the same name, see USS Canonicus.
USS Canonicus (ID-1696) in British waters in 1918.
History
United States
Name: USS Canonicus
Namesake: Canonicus (c. 1565-1647), a Native American chief of the Narragansett
Builder: Newport News Shipbuilding and Dry Dock Company, Newport News, Virginia
Launched: 7 October 1899
Acquired: 23 November 1917
Commissioned: 2 March 1918
Decommissioned: 7 August 1919
Fate: Transferred to United States Shipping Board 1919 for return to owner
Notes: Operated as commercial passenger-cargo ship El Cid c. 1900-1917
General characteristics
Type:
  • Minelayer (in 1918)
  • Troop transport (in 1919)
Tonnage: 4,665 gross tons
Displacement: 7,620 tons
Length: 405 ft 1 in (123.47 m)
Beam: 48 ft 3 in (14.71 m)
Draft: 22 ft 6 in (6.86 m)
Speed: 15 knots[1]
Capacity: 830 mines (900 max)[1]
Crew: 21 officers and 400 men[1]
Armament:

She was fitted out for United States Navy service by Morse Dry Dock and Repair Company at Brooklyn, New York. Work began on 22 November 1917. Gun platforms were added for two anti-aircraft guns forward and a 5"/51 caliber gun aft. The minelaying conversion enabled her to carry mines on three decks, and included six Otis elevators individually capable of transferring two mines every 20 seconds from the storage decks to the launching deck. Stern ports were cut for launching the mines and the rudder quadrant was raised to give adequate clearance. Watertight subdivision was improved by strengthening existing bulkheads and building two new bulkheads to divide the largest compartments so the ship might stay afloat if only one compartment were flooded. Quarters were enlarged to accommodate messing and berthing arrangements for a crew of about 400. The main machinery was overhauled and auxiliary machinery was added for the elevators, for heating the berthing spaces, for refrigerated food storage, for additional fresh water distilling capacity, for magazine sprinklers and galley and washroom plumbing, and enlarged electric generators for lighting and radio communications. Existing coal bunkers on the third deck were replaced with a bunker in the hold forward of the boiler room with chutes to load coal over the mines. Larger boats and heavier anchors required larger davits and anchor windlass, and the mines required specialized handling machinery.[2]

USS Canonicus was commissioned on 2 March 1918 with Commander Thomas L. Johnson, USN, in command. Canonicus cleared Newport, Rhode Island on 12 May 1918 and reached Inverness, Scotland on 27 May 1918. While operating as part of Mine Squadron 1 from 7 June until the close of the war on 11 November 1918, Canonicus:[1]

  • planted 763 mines during the 1st minelaying excursion on 7 June,
  • planted 710 mines during the 2nd minelaying excursion on 30 June,
  • planted 798 mines during the 3rd minelaying excursion on 14 July,
  • planted 810 mines during the 4th minelaying excursion on 29 July,
  • planted 170 mines during the 5th minelaying excursion on 8 August,
  • planted 640 mines during the 6th minelaying excursion on 18 August,
  • planted 810 mines during the 7th minelaying excursion on 26 August,
  • planted 820 mines during the 8th minelaying excursion on 7 September,
  • planted 830 mines during the 9th minelaying excursion on 20 September,
  • planted 860 mines during the 10th minelaying excursion on 27 September,
  • planted 860 mines during the 11th minelaying excursion on 4 October,
  • planted 820 mines during the 12th minelaying excursion on 13 October, and
  • planted 890 mines during the final 13th minelaying excursion on 24 October.
Canonicus in port in 1919 during her service as a troop transport.

Canonicus returned to Hampton Roads, Virginia, on 3 January 1919 and was assigned to the Cruiser and Transport Force on 7 February 1919. She made three voyages as a troop transport between the United States East Coast and France, returning 4,166 troops to the United States. Canonicus was decommissioned on 7 August 1919 and returned to the Southern Pacific Steamship Company.

Big Four

In the words of British Rear Admiral Lewis Clinton-Baker, the North Sea mine barrage was the "biggest mine planting stunt in the world's history." The United States converted eight civilian steamships as minelayers for the 100,000 mines manufactured for the barrage. The largest of these were four freighters owned by Southern Pacific Steamship Company. Southern Pacific Transportation Company had evolved from the First Transcontinental Railroad to become the dominant transportation provider in California. Owners of the original Central Pacific Railroad were known as the Big Four. Sailors similarly referred to these former Southern Pacific ships as the Big Four.[1]

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References
  1. Belknap, Reginald Rowan The Yankee mining squadron; or, Laying the North Sea mining barrage (1920) United States Naval Institute pp.46-47,74&110
  2. Daniels, Josephus The Northern Barrage and Other Mining Activities (1920) Government Printing Office pp.70-71
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