- References
{{Infobox ship image| Ship image=USS Hyac (SP-216).jpg | Ship caption=USS Hyac on 26 November 1917, hauled out of the water on a marine railway, probably for winter lay-up.
}}{{Infobox ship career | Hide header= | Ship country=United States | 1917}} | Ship name=USS Hyac | Ship namesake=Previous name retained | Ship owner= | Ship operator= | Ship registry= | Ship route= | Ship ordered= | Ship awarded= | Ship builder=Weckler Boat Company, Chicago, Illinois | Ship original cost= | Ship yard number= | Ship way number= | Ship laid down= | Ship launched= | Ship sponsor= | Ship christened= | Ship completed=1915 | Ship acquired=1917 | Ship commissioned=5 July 1917 | Ship recommissioned= | Ship decommissioned= | Ship maiden voyage= | Ship in service= | Ship out of service= | Ship renamed= | Ship reclassified= | Ship struck= | Ship reinstated= | Ship homeport= | Ship identification= | Ship motto= | Ship nickname= | Ship honours= | Ship honors= | Ship captured= | Ship fate=Returned to owner 26 November 1918 | Ship status= | Ship notes=Operated as civilian motorboat Hyac 1915-1917 and from November 1918 | Ship badge=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Ship class= | Ship type=Patrol vessel | Ship tonnage= | Ship displacement=48 tons | Ship tons burthen= | 75|ft|4|in|m|abbr=on}} | 14|ft|5|in|m|abbr=on}} | 5|ft|m|abbr=on}} | Ship depth= | Ship hold depth= | Ship decks= | Ship deck clearance= | Ship ramps= | Ship ice class= | Ship power= | Ship propulsion= | Ship sail plan= | Ship speed=10 knots | Ship range= | Ship endurance= | Ship test depth= | Ship boats= | Ship capacity= | Ship troops= | Ship complement= | Ship crew= | Ship time to activate= | Ship sensors= | Ship EW= | Ship armament= | Ship armour= | Ship armor= | Ship aircraft= | Ship aircraft facilities= | Ship notes=
}} | USS Hyac (SP-216) was a United States Navy patrol vessel in commission from 1917 to 1918. Based at Chicago and assigned to the "9th, 10th, and 11th Naval Districts"—at the time a single administrative entity made up of the 9th Naval District, 10th Naval District, and 11th Naval District -- Hyac served as a patrol boat on the Great Lakes between Chicago and Sault Ste. Marie, Michigan, during World War I. Following the end of the war, Hyac was returned to her owner on 26 November 1918. References- {{DANFS|http://www.history.navy.mil/danfs/h9/hyac.htm}}
- Department of the Navy: Navy History and Heritage Command: Online Library of Selected Images: U.S. Navy Ships: USS Hyac (SP-216), 1917-1918.
- NavSource Online: Section Patrol Craft Photo Archive: Hyac (SP 216)
{{DEFAULTSORT:Hyac (SP-216)}} 5 : Patrol vessels of the United States Navy|World War I patrol vessels of the United States|Ships built in Chicago|1915 ships|Great Lakes ships |