A-class torpedo boat

SMS A 68
Class overview
Operators:  Kaiserliche Marine
Built: 19141918
In service: 19141950
Planned: 113
Completed: 92
Cancelled: 21
Lost: 30

The A class torpedo boats were a class of German single-funnelled torpedo boat/light destroyer designed by the Marineamt for operations off the coast of occupied Flanders in the First World War. The A designation was to avoid confusion with older classes and designs.

Six groups of vessels were built under the class between 1914 and 1918, increasing in displacement from 109 tons to 335 tons. All had a raised forecastle, shallow draught, and carried 45 cm (18 in) torpedo tubes amidships.

A1 - A25

General characteristics (A1A25)
Displacement:109 t (107 long tons)[1]
Length:41 m (134 ft 6 in) LWL[1]
Beam:4.6 m (15 ft 1 in) [1]
Draught:1.52 m (5 ft 0 in) [1]
Installed power:Coal-fired, single-shaft, triple-expansion steam engine, 1,200 ihp (895 kW) [1]
Propulsion:1 shaft
1 × 1.8 m (5 ft 11 in) propeller
Speed:20 knots (37 km/h; 23 mph)[1]
Range:900 nautical miles (1,700 km; 1,000 mi) at 12.5 knots (23.2 km/h; 14.4 mph)[1]
Complement:28[2]
Armament:1 × 5 cm (2.0 in) SK L/40 or 5.2 cm (2 in) SK L/55 deck gun
2 × 45 cm (18 in) torpedo tubes
4 × mines


A26 - A55

General characteristics (A26A55)
Displacement:227–229 t (223–225 long tons)[3]
Length:49 m (160 ft 9 in) LWL[3]
Beam:5.32–5.62 m (17 ft 5 in–18 ft 5 in) [3]
Draught:2.34 m (7 ft 8 in) [3]
Installed power:Oil-fired, single-shaft, geared turbine steam engine, 3,250 hp (2,424 kW)
Propulsion:1 × shafts
1 × 1.88 m (6 ft 2 in)
Speed:25 knots (46 km/h; 29 mph)[3]
Range:690 nautical miles (1,280 km; 790 mi) at 20 knots (37 km/h; 23 mph)[3]
Complement:29[3]
Armament:2 × 8.8 cm (3.5 in) guns
1 × 45 cm (18 in) torpedo tube
Minelaying capability[3]


A56 - A79

General characteristics (A56A79)
Displacement:330–335 t (325–330 long tons)[6]
Length:59.3–60.12 m (194 ft 7 in–197 ft 3 in) LWL[6]
Beam:6.42 m (21 ft 1 in) [6]
Draught:2.21–2.34 m (7 ft 3 in–7 ft 8 in) [6]
Installed power:Oil-fired, geared turbine steam engine, 6,000 shp (4,474 kW)[6]
Propulsion:2 × shafts
2 × 1.7 m (5 ft 7 in) propeller[6]
Speed:28 knots (52 km/h; 32 mph)[6]
Range:800 nautical miles (1,500 km; 920 mi) at 20 knots (37 km/h; 23 mph)[6]
Complement:50[6]
Armament:2 × 8.8 cm (3.5 in) guns
1 × 45 cm (18 in) torpedo tube [6]


A80 - A91

General characteristics (A80A91)
Displacement:330 t (325 long tons)[6]
Length:60.2 m (197 ft 6 in) LWL
Beam:6.41 m (21 ft 0 in) [6]
Draught:2.11 m (6 ft 11 in) [6]
Installed power:Oil-fired, geared turbine steam engine, 5,700 shp (4,250 kW)[6]
Propulsion:2 × shafts
2 × 1.6 m (5 ft 3 in)[6]
Speed:26 knots (48 km/h; 30 mph)[6]
Range:800 nautical miles (1,500 km; 920 mi) at 20 knots (37 km/h; 23 mph)[6]
Complement:50[6]
Armament:2 × 8.8 cm (3.5 in) guns
1 × 45 cm (18 in) torpedo tube [6]


A92 - A113

General characteristics (A92A113)
Displacement:330–335 t (325–330 long tons)[6]
Length:59.4–60.2 m (194 ft 11 in–197 ft 6 in) LWL [6]
Beam:6.42 m (21 ft 1 in) [6]
Draught:2.12 m (6 ft 11 in)[6]
Installed power:Oil-fired, geared turbine steam engine, 5,700–6,000 shp (4,250–4,474 kW)[6]
Propulsion:2 × shafts
2 × 1.6 m (5 ft 3 in) propellers[6]
Speed:26.5 knots (49.1 km/h; 30.5 mph)[6]
Range:800 nautical miles (1,500 km; 920 mi) at 20 knots (37 km/h; 23 mph)[6]
Complement:50[6]
Armament:2 × 8.8 cm (3.5 in) guns
1 × 45 cm (18 in) torpedo tube [6]


See also

References