Decommissioning
After voyage repairs, she moved to San Francisco, California, where she was decommissioned on 15 December 1970. Decommissioning, however, did not end her active naval service, for she joined Thrasher (MSC-203) and Reaper (MSO-467) as a reserve training ship in Reserve Mine Division 52. For almost five years, she operated out of Treasure Island Naval Station training naval reservists during their annual active duty periods.
On 2 May 1975, Whippoorwill moved from San Francisco to the Inactive Ship Facility at Vallejo, California. She was decommissioned, 15 December 1970 at San Francisco, and placed "in service" as a Naval Reserve Training Ship.
The ship was placed "out of service," on 30 June 1975, struck from the Naval Register on 1 July 1975, and sold to the Republic of Singapore where she served as RSS Jupiter (M-101). RSS Jupiter was scrapped on 15 August 1986, another RSS Jupiter (but Singaporean made) was transferred to Indonesia in 2002 where she serves as KRI Cucut.
Read more about this topic: USS Whippoorwill (AMS-207)