HMAS AE1
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HMAS AE1 underway in 1914
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| History | |
|---|---|
 Australia
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| Builder: | Vickers Armstrong |
| Laid down: | 14 November 1911 |
| Launched: | 22 May 1913 |
| Commissioned: | 28 February 1914 |
| Honours and awards: |
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| Fate: | Lost at sea, 14 September 1914 |
| Notes: | Location of sinking unknown |
| General characteristics | |
| Class and type: | E-class submarine |
| Displacement: | 750 long tons (760 t) surfaced |
| Length: | 181 ft (55 m) |
| Beam: | 22 ft 6 in (6.86 m) |
| Draught: | 12 ft 6 in (3.81 m) |
| Installed power: |
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| Propulsion: | 2 × propeller shafts |
| Speed: |
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| Range: |
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| Test depth: | 200 feet (61.0 m) |
| Complement: | 34 |
| Armament: | 4 × 18-inch torpedo tubes |
HMAS AE1 (originally known as just AE1) was an E-class submarine of the Royal Australian Navy (RAN). She was the first submarine to serve in the RAN, and was lost at sea with all hands near East New Britain, Papua New Guinea, on 14 September 1914, after less than seven months in service. The wreck of the submarine has never been found, despite several searches.
The E-class was a version of the preceding D-class submarine enlarged to accommodate an additional pair of broadside torpedo tubes.AE1 was 181 feet (55.2 m) long overall, had a beam of 22 feet 6 inches (6.9 m) and a draught of 12 feet 6 inches (3.8 m). She displaced 750 long tons (760 t) on the surface and 810 long tons (820 t) submerged. The E-class boats had a designed diving depth of 100 feet (30.5 m), but the addition of watertight bulkheads strengthened the hull and increased the actual diving depth to 200 feet (61.0 m). The complement consisted of 34 officers and ratings.
The boat had two propellers, each of which was driven by an eight-cylinder, 800-brake-horsepower (600 kW) diesel engine as well as a 420-brake-horsepower (313 kW) electric motor. This arrangement gave the E-class submarines a maximum speed of 15 knots (28 km/h; 17 mph) while surfaced and 10 knots (19 km/h; 12 mph) when submerged. They carried approximately 40 long tons (41 t) of fuel oil, which provided a range of 3,000 nautical miles (5,600 km; 3,500 mi) at 10 knots (19 km/h; 12 mph) while on the surface and 65 nmi (120 km; 75 mi) at 5 knots (9.3 km/h; 5.8 mph) while submerged.AE1 had four 18-inch torpedo tubes, one each in the bow and stern, plus two on the broadside, one firing to port and the other to starboard. The boat carried one spare torpedo for each tube. No guns were fitted.
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