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fighting ships of the world

IMPERIAL JAPANESE NAVY (JAPAN)

TORPEDO SHIPS

TOMOZURU torpedo boats (1933-1934)

Tomozuru 1934

Tomozuru 1941

Tomozuru 1941

Name No Builder Laid down Launched Comp Fate
友鶴 <Tomozuru>   Maizuru K K 11/1932 1/10/1933 2/1934 sunk 24/3/1945
千鳥 <Chidori>   Maizuru K K 10/1931 1/4/1933 11/1933 sunk 24/12/1944
真鶴 <Manazuru>   Fujinagata, Osaka 12/1933 11/7/1933 11/1934 sunk 1/3/1945
初雁 <Hatsukari>   Fujinagata, Osaka 4/1933 19/12/1933 7/1934 surrendered 8/1945, BU 1946

  

Displacement standard, t

535

Displacement full, t

737

Length, m

77.5 pp 79.0 wl 82.0 oa

Breadth, m

7.40

Draught, m

2.50

No of shafts

2

Machinery

Kampon geared steam turbines, 2 Kampon boilers

Power, h. p.

11000

Max speed, kts

30

Fuel, t

oil 150

Endurance, nm(kts) 9000(10)

Armament

1 x 2 - 127/50 3-shiki, 1 x 1 - 127/50 3-shiki, 1 x 1 - 40/62 HI 91-shiki, 2 x 2 - 533 TT, 2 DCT

Complement

113

     

Ship project history: First Japanese ships built according to requirements of London Naval Treaty to 600t torpedo boats. Four ships (Nos1-4) were ordered under the 1931 program. As well as all Japanese projects of that period, they had the maximum fire power at minimum sizes. Armament originally consisted of three 127mm/50 guns in twin and single mounts, 40mm Vickers MG and two twin 533mm TTs. These torpedo boats considerably exceeded French and Italian, developed on conditions of the same treaty. On arms they could be compared even to some destroyers, armament shared 22.7% of displacement! For redundant upper weight it was not necessary to wait for payment long. After three weeks after commission Tomozuru has shared in manoeuvres. On March, 12th, 1934 during night torpedo attack going in rough sea with 14kts speed torpedo boat has turned over and remained afloat in position bottom up. Soon she was searched and towed off to Sasebo. Next day Tomozuru was returned to standard position and entered into dock. Catastrophe became a direct consequence of an insufficient stability. Building of remained Manazuru and Hatsukari at once have suspended.

In August-December, 1936 all 4 ships have passed full reconstruction at Maizuru DYd. Both 127mm mounts and aft TT were removed, having changed on 3 120mm/45 single gun with shields, two of which have taken former places, and third was mounted on a place of removed TT, armament weight has thus decreased more than on 60t. 40-mm MG had been besides removed. Bridge height was moderated by one level. Standard displacement after update was increased from 535 to 600t and full from 737 to 815t (98t of solid ballast were added), and max speed has fallen to 28kts. After carrying out of all works the stability accepted comprehensible value.

Modernizations: 8 - 12/1936, all: After capsizing of Tomozuru all units of the class were reconstructed with data as follows:

Displacement standard, t

600

Displacement full, t

815

Length, m

77.5 pp 79.0 wl 82.0 oa

Breadth, m

7.40

Draught, m

 

No of shafts

2

Machinery

Kampon geared steam turbines, 2 Kampon boilers

Power, h. p.

11000

Max speed, kts

28

Fuel, t

oil 150

Endurance, nm(kts)

9000(10)

Armament

3 x 1 - 120/45 11-shiki, 1 x 1 - 7.7/80, 1 x 2 - 533 TT, 2 DCT

Complement

113

1942, all: - 1 x 1 - 120/45 (No 3), 1 x 1 - 7.7/80; + 2 x 2 - 25/60 96-shiki, 4 DCT (totally 48)

1944, all: + 6 x 1 - 25/60 96-shiki

Naval service: Manazuru 9/9/1944 was damaged by American submarine Queenfish, 1/3/1945 she was sunk at Okinawa by American carrier aircraft. Chidori 24/12/1944 was sunk SW off Yokosuka by American submarine Tilefish. Tomozuru 24/3/1945 was sunk by American carier aircraft in 230nm SE off Shanghai. Hatsukari 20/3/1945 was damaged by American Army aircraft.
 

 

Chidori 12/1936

 

Ivan Gogin, 2008-14