Jingei-class submarine tender

	Jingei (above) and Chōgei in 1924
Class overview
Name	Jingei-class submarine tender
Builders	Mitsubishi Heavy Industries
Operators	Imperial Japanese Navy
Cost	2,900,000 JPY
Built	1922 – 1924
In commission	1923 – 1945
Planned	2
Completed	2
Lost	1
Retired	1
General characteristics (initial)
Displacement	5,160 long tons (5,243 t) standard; 7,678 long tons (7,801 t) trial;
Length	125.40 m (411 ft 5 in) overall; 123.00 m (403 ft 7 in) waterline;
Beam	16.22 m (53 ft 3 in)
Draught	6.28 m (20 ft 7 in)
Propulsion	2 × Parsons geared turbines; 2 shafts, 7,500 shp; Jingei; 6 × Kampon coal/oil-fired boilers; Chōgei; 5 × Kampon coal/oil-fired boilers;
Speed	18.5 knots (21.3 mph; 34.3 km/h)
Range	10,400 nmi (19,300 km) at 14 kn (16 mph; 26 km/h)
Capacity	1,900 tons oil; 27 × torpedoes; 3 × periscopes;
Complement	Jingei: 364; Chōgei: 399;
Armament	Jingei, 1923; 4 × 140 mm L/50 naval guns; 2 × 76.2 mm (3.00 in) L/40 AA guns; 2 × 7.7 mm machine guns;
Aircraft carried	1927-1942; 1 × float plane;
Aviation facilities	derrick and deck
General characteristics (and after 1935)
Displacement	6,240 long tons (6,340 t) standard; 8,288 long tons (8,421 t) trial;
Length	123.47 m (405 ft 1 in) waterline
Beam	17.15 m (56 ft 3 in)
Draught	6.60 m (21 ft 8 in)
Speed	16.0 knots (18.4 mph; 29.6 km/h)
Armament	Jingei, 1944; 4 × 140 mm (5.5 in) L/50 naval guns; 2 × 76.2 mm L/40 AA guns; 2 × Type 96 25 mm AA guns; 4 × Type 93 13 mm AA guns; 1 × 21-Gō early warning radar; Chōgei, 1945; 4 × 140 mm L/50 naval guns; 2 × 76.2 mm L/40 AA guns; 14 × Type 96 25 mm AA guns; 4 × Type 93 13 mm AA guns; 1 × 21-Gō early warning radar;

The Jingei-class submarine tenders (迅鯨型潜水母艦,, Jingei-gata Sensuibokan) were a class of submarine tenders of the Imperial Japanese Navy (IJN), and served from the 1920s through World War II. Two vessels of this class were built between 1922 and 1924 under the Eight-eight fleet plan.

Class overview
Jingei (above) and Chōgei in 1924
Name	Jingei-class submarine tender
Builders	Mitsubishi Heavy Industries
Operators	Imperial Japanese Navy
Cost	2,900,000 JPY
Built	1922 – 1924
In commission	1923 – 1945
Planned	2
Completed	2
Lost	1
Retired	1
General characteristics (initial)
Displacement	5,160 long tons (5,243 t) standard 7,678 long tons (7,801 t) trial
Length	125.40 m (411 ft 5 in) overall 123.00 m (403 ft 7 in) waterline
Beam	16.22 m (53 ft 3 in)
Draught	6.28 m (20 ft 7 in)
Propulsion	2 × Parsons geared turbines 2 shafts, 7,500 shp Jingei 6 × Kampon coal/oil-fired boilers Chōgei 5 × Kampon coal/oil-fired boilers
Speed	18.5 knots (21.3 mph; 34.3 km/h)
Range	10,400 nmi (19,300 km) at 14 kn (16 mph; 26 km/h)
Capacity	1,900 tons oil 27 × torpedoes 3 × periscopes
Complement	Jingei: 364 Chōgei: 399
Armament	Jingei, 1923 4 × 140 mm L/50 naval guns 2 × 76.2 mm (3.00 in) L/40 AA guns 2 × 7.7 mm machine guns
Aircraft carried	1927-1942 1 × float plane
Aviation facilities	derrick and deck
General characteristics (and after 1935)
Displacement	6,240 long tons (6,340 t) standard 8,288 long tons (8,421 t) trial
Length	123.47 m (405 ft 1 in) waterline
Beam	17.15 m (56 ft 3 in)
Draught	6.60 m (21 ft 8 in)
Speed	16.0 knots (18.4 mph; 29.6 km/h)
Armament	Jingei, 1944 4 × 140 mm (5.5 in) L/50 naval guns 2 × 76.2 mm L/40 AA guns 2 × Type 96 25 mm AA guns 4 × Type 93 13 mm AA guns 1 × 21-Gō early warning radar Chōgei, 1945 4 × 140 mm L/50 naval guns 2 × 76.2 mm L/40 AA guns 14 × Type 96 25 mm AA guns 4 × Type 93 13 mm AA guns 1 × 21-Gō early warning radar