MV Empire MacKay was an oil tanker constructed with rudimentary aircraft handling facilities as a merchant aircraft carrier (MAC ship).
MV Empire MacKay was built by Harland and Wolff, Govan under order from the Ministry of War Transport. She entered service as a MAC ship in October 1943, however only her air crew and the necessary maintenance staff were naval personnel.[1] She was operated by the British Tanker Company.[2]
She returned to merchant service as an oil tanker in 1946 as British Swordfish and she was eventually scrapped in Rotterdam in 1959.[2]