Built 1918- 1919. 186 x 36 x 17ft. Disp 1400. Speed 14. Steam recip. Coal. IHP 2400. 2 Screws. BP 24. To commercial tug
SIR DAVID HUNTER design (built Ferguson 1915, 622grt, but increased to 739-842grt in Resolve-class).
Resolve, Respond, Retort, Rollicker, Roysterer, Rollcall.