Brigand Class: Fleet Tugs built 1937 - 1940. 175 x 34 x17ft. Disp 1190. Triple Expansion twin screw. BP 30. Bandit, Brigand, Buccaneer, Freebooter, Marauder.
Envoy Class: Built 1944 by Cochrane, Selby.
174 x 36 x 17ft. GRT 762. Triple Expansion, single screw. BP 16. Enchanter, Encore, Enforcer, Enigma, Enticer, Envoy.