The E.M.E.D. was a Walton & Frinton lifeboat built in 1928 by J. Samuel White. Measuring 48 feet 6 inches in length with a beam of 13 feet, she was considered a large vessel for her type. In 1956, the lifeboat was sold out of service to Chile.

During World War II, E.M.E.D. participated in the Dunkirk evacuation twice in 1940. She endured three enemy air attacks off Gravelines, during which other boats she was towing were destroyed. Despite sustaining damage, including a rope entangled around her propeller, the vessel survived. Tragically, a shell struck and killed the officer in charge during these operations.

As of May 2018, a volunteer from the Lifeboats of Valparaiso, Chile, who served as Third Pilot of the BS Capitan Cristhiansen (the former E.M.E.D.), reported involvement in a project to recover this historic vessel. No photographs of the lifeboat in Chilean service have been located to date.

The E.M.E.D. is notable for her extensive service history and geographic journey, traveling approximately 7,260 miles from London to Valparaiso. This has led to speculation that she may hold the record for the most far-flung Dunkirk vessel.

For comparative reference, see also her sister ship, Greater London - Ades 1.