- References
{{other ships|USS Mauna Loa}}{{Infobox ship image| Ship image= | Ship caption=Mauna Loa ca. 1916 as a private pleasure craft prior to her U.S. Navy service
}}{{Infobox ship career | Hide header= | Ship country=United States | 1917}} | Ship name=USS Mauna Loa | Ship namesake=Previous name retained | Ship owner= | Ship operator= | Ship registry= | Ship route= | Ship ordered= | Ship awarded= | Ship builder=George Lawley and Sons, Neponset, Massachusetts | Ship original cost= | Ship yard number= | Ship way number= | Ship laid down= | Ship launched= | Ship sponsor= | Ship christened= | Ship completed=1916 | Ship acquired=10 May 1917 | Ship commissioned=11 May 1917 | Ship recommissioned= | Ship decommissioned=5 December 1918 | Ship maiden voyage= | Ship in service= | Ship out of service= | Ship renamed= | Ship reclassified= | Ship refit= | Ship struck= | Ship reinstated= | Ship homeport= | Ship identification= | Ship motto= | Ship nickname= | Ship honours= | Ship honors= | Ship captured= | Ship fate=Returned to owner 5 December 1918 | Ship status= | Ship notes=Operated as private motorboat Mauna Loa 1916-1917 and from December 1918 | Ship badge=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Ship class= | Ship type=Patrol vessel | Ship tonnage=18 gross tons | Ship displacement= | Ship tons burthen= | 56|ft|m|abbr=on}} | 9|ft|6|in|m|abbr=on}} | Ship height= | Ship draught= | 2|ft|9|in|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=20 knots | Ship range= | Ship endurance= | Ship test depth= | Ship boats= | Ship capacity= | Ship troops= | Ship complement=7 | Ship crew= | Ship time to activate= | Ship sensors= | Ship EW= | Ship armament=1 × machine gun | Ship armour= | Ship armor= | Ship aircraft= | Ship aircraft facilities= | Ship notes=
}} | The first USS Mauna Loa (SP-28) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1918. Mauna Loa was built in 1916 by George Lawley and Sons at Neponset, Massachusetts, as a private motorboat of the same name. The U.S. Navy acquired her from her owner, A. C. James, on a free lease contract on 10 May 1917 for World War I service. She was commissioned as USS Mauna Loa (SP-28) on 11 May 1917. Mauna Loa was assigned to the 1st Naval District. She patrolled the coast of northern New England until the end of the war. The Navy decommissioned Mauna Loa on 5 December 1918 and returned her to her owner the same day. References- {{DANFS|http://www.history.navy.mil/danfs/m6/mauna_loa-i.htm}}
- Department of the Navy: Naval Historical Center: Online Library of Selected Images: Civilian Ships: Mauna Loa (Motor Boat, 1916). Served as USS Mauna Loa (SP-28) in 1917-1918
- NavSource Online: Section Patrol Craft Photo Archive Mauna Loa (SP 28)
{{DEFAULTSORT:Mauna Loa (SP-28)}} 4 : Patrol vessels of the United States Navy|World War I patrol vessels of the United States|Ships built in Boston|1916 ships |