YFP 310 / YMR-4 / YTP-4
YFM 310 was one of 10 auxiliary craft built for the west coast navy between 1953 and 1955. Built for use as a blue boat, the majority of these crafted were used for general purposes such as liberty boats, stores and equipment lighters, etc. Re-designated as YFPs in 1960, YFP 310 along with with many of her sisters, were placed paid off to reserve status due to defence budget cuts. She was taken out of reserve status in 1965 and transferred to the under water range at Nanoose Bay in 1965 and fitted with monitoring and detection equipment in her holds for and aft. Renamed YMR-4 and later YTP-4 she served at the Canadian Forces Experimental and Test Range (CFMETR) till she was removed from service in 1991.