Type 139 patrol trawler

HMT Ailsa Craig
Class overview
BuildersG.T. Davie yard
Operators German Navy
Built1942 (Royal Navy)
In service1956 – mid 1970s (Federal German Navy)
Completed2
Retired2
General characteristics
TypeNaval trawler
Displacement545 tons
Length164 ft (50.0 m)
Beam27 ft 8 in (8.4 m)
Draught11 ft 1 in (3.4 m) (mean)
PropulsionOne triple expansion reciprocating engine, 1 shaft, 850 ihp (630 kW)
Speed12 knots (22 km/h; 14 mph)
Complement40
ArmamentVarious light guns for training purposes

The Type 139 patrol trawler was a class of vessel used as a training ship by the Federal German Navy. Both vessels in the class were originally built for the Royal Navy in 1942 as Isles-class naval trawlers.