Editing USS Cyclops (section)

{{Short description|United States navy ship lost at sea in 1918}}
{{for-text|the American Civil War gunboat|[[USS Kickapoo (1864)]]|other military ships named "Cyclops"|[[Cyclops (disambiguation)#In the military]]}}
{{Use dmy dates|date=November 2020}}
{|{{Infobox ship begin
| infobox caption = yes
}}
{{Infobox ship image
| Ship image = [[File:USS Cyclops in Hudson River 19111003.jpg|300px|border|alt=USS Cyclops]]
| Ship caption = USS ''Cyclops'' on the Hudson River in 1911
}}
{{Infobox ship career
| Hide header = 
| Ship country = United States
| Ship flag = {{shipboxflag|United States|1912}}
| Ship name = ''Cyclops''
| Ship namesake = [[Cyclops]]
| Ship ordered = 
| Ship builder = [[William Cramp & Sons]], [[Philadelphia]]
| Ship yard number = 355
| Ship laid down = 
| Ship launched = 7 May 1910
| Ship acquired = 
| Ship commissioned = 1 May 1917
| Ship decommissioned = 
| Ship in service = 
| Ship out of service = 
| Ship struck = 
| Ship honors = 
| Ship fate = Lost at sea, March 1918
| Ship notes = 
}}
{{Infobox ship characteristics
| Hide header = 
| Header caption = 
| Ship class = ''Proteus''-class [[Collier (ship type)|collier]]{{citation needed|date=March 2024}}
| Ship displacement = {{convert|19360|LT|t|0|lk=on|abbr=on}} full
| Ship length = {{convert|542|ft|m|abbr=on}}
| Ship beam = {{convert|65|ft|m|abbr=on}}
| Ship draft = {{convert|27|ft|8|in|m|abbr=on}}
| Ship propulsion = *2 x coal-fired boiler
*2 x vertical triple-expansion reciprocating steam engine 
*2 x shafts
| Ship speed = {{convert|15|kn|lk=on|abbr=on}}
| Ship range = 
| Ship complement = 236 officers and enlisted
| Ship armament = 4 × {{convert|4|in|mm|abbr=on}} guns
| Ship notes = 
| Ship capacity = *{{convert|8000|LT|t|0|abbr=on}} ''normal maximum''
*{{convert|10800|LT|t|0|abbr=on}} ''maximum overload''
}}
|}

'''USS ''Cyclops'' (AC-4)''' was the second of four [[USS Proteus (AC-9)|''Proteus''-class]] [[Collier (ship)|collier]]s built for the [[United States Navy]] several years before [[World War I]].{{citation needed|date=March 2024}} Named after the [[Cyclops]], a race of [[Giant (mythology)|giants]] from [[Greek mythology]], she was the second U.S. naval vessel to bear the name. The loss of the ship and 306 crew and passengers without a trace occurred sometime after 4 March 1918.

As the loss occurred during World War I, she was thought to have been captured or sunk by a German raider or submarine because she was carrying {{convert|10800|LT|t|0|abbr=on}} of [[manganese]] ore used to produce munitions, but German authorities at the time subsequently denied any knowledge of the vessel.<ref name="Strange">{{cite magazine|last=Reck|first=Alfred P.|date=June 1929|volume=114|number=6|title=Strangest American Sea Mystery is Solved at Last|magazine=[[Popular Science Monthly]]|pages=15–17, 137|url={{Google books|XSgDAAAAMBAJ|Strangest American Sea Mystery is Solved at Last|page=PA15|plainurl=yes}}|access-date=8 July 2009}} In this article, ''Amolco'' was erroneously called ''Amalco''.</ref> The [[Naval History & Heritage Command]] has stated she "probably sank in an unexpected storm",<ref name="Bermuda Triangle">{{cite web|url=http://www.history.navy.mil/faqs/faq8-1.htm|archive-url=https://web.archive.org/web/19970709142851/http://www.history.navy.mil/faqs/faq8-1.htm|url-status=dead|archive-date=9 July 1997|title=Bermuda Triangle|work=Naval History & Heritage Command|publisher=[[United States Navy]]|access-date=4 March 2012}}</ref> but the cause of the ship's loss is not known.