 IX-78 was acquired by the Navy 10 August 1942 as "Maitland Adams" from the Gibbs Gas Engine Co., Jacksonville, Florida, repaired at the former owner's yard, placed in service 10 December 1942 and ordered to Key West, Florida.The vessel was commissioned at Key West on 23 January 1943 where she served at the Fleet Sound School as a training vessel for sonarmen throughout her career.The vessel was placed out of commission on 14 December 1944 at the Naval Operating Base, Key West.