PL 1907 g-class submarine

PL 1907 g-class Submarine
Class overview
Name	PL 1907 g-class Submarine
Builders	Dalzavod, Vladivostok
Operators	Far Eastern Imperial Navy
Planned	4
Built	4
General Characteristics
Type	Submarine
Displacement	409 long tons (416 t) surfaced 482 long tons (490 t) submerged
Length	41 metres (135 ft)
Beam	3.7 metres (12 ft)
Draught	4.9 metres (16 ft)
Propulsion	2 × gasoline engines (400 bhp (300 kW)) 2 × electric motors (200 hp (150 kW))
Speed	8.4 knots (15.6 km/h; 9.7 mph) (surfaced) 7.5 knots (13.9 km/h; 8.6 mph) (submerged)
Range	750 nmi (1,390 km; 860 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced) 24 nmi (44 km; 28 mi) at 7 knots (13 km/h; 8.1 mph) (submerged)
Test depth	27 m
Complement	34
Armament	2 × bow and 2 × stern 18-inch (457 mm) torpedo tubes 1 × 47-millimeter (1.9 in) gun

Development

After the Far Eastern-Japanese war, the Imperial Navy begun massive fleet reconstruction program which was drafted after extensive studies of the war experience. One of the new emphasis in the building program was construction of submarines. Dalzavod in Vladivostok was ordered to provide navy a 4 new submarines. As the submarine development in Far Eastern Empire was non-existing, Dalzavod seeked assistance abroad. With already existing business link to various U.S shipbuilders, they turned into the help of american ship designer Simon Lake.

Characteristics

Typical "Lake" design early submarines. Intended to be re-engined with diesels prior to WWI but the plans were dropped in 1915.

Ships in class

All dates given are New Style:

Name	Builder	Laid down	Launch Date	Entered Service	Fate
PL-7	Dalzavod, Vladivostok	August 1907	August 1908	October 1909	Extant in 1920
PL-8	Dalzavod, Vladivostok	August 1907	August 1908	November 1909	Extant in 1920
PL-9	Dalzavod, Vladivostok	August 1907	August 1908	November 1909	Extant in 1920
PL-10	Dalzavod, Vladivostok	August 1907	August 1908	November 1909	Extant in 1920

See Also

Ships of Far Eastern Imperial Navy 1920