Difference between revisions of "Soukou-Tei (Family)"

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The '''Soukou-Tei-class''' (装甲艇, which means "armored boat") or '''AB-Tei-class''' was a type of armored gunboat used by the Imperial Japanese Army in the Second Sino-Japanese War and World War II.
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{{DISPLAYTITLE:Soukou-Tei / AB-Tei (Family)}}
  
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==Description==
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[[File:ArtImage AB-Tei (Family).png|thumb]]
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The '''Soukou-Tei-class''' (装甲艇, "armored boat"), or simplified as the '''AB-Tei-class''', was a type of armoured gunboat used by the Imperial Japanese Army in the Second Sino-Japanese War and World War II.
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These would be used in conjunction with an army naval landing as an escort to provide firepower and suppression cover for the landing. Armed with tank-like turrets housing machine guns and even tank-sized cannons ranging from 37 mm to 57 mm, these would prove very useful and successful for army landings.
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A total of 56 boats would be completed.
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{{clear}}
 
== Vehicles ==
 
== Vehicles ==
 
=== Rank I ===
 
=== Rank I ===
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* [[Soukou-Tei]] - Sakigake
  
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* [[Soukou-Tei (1927)|Soukou-Tei (1927) Sakigake]]
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=== Rank II ===
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* [[Soukou-Tei (1940)]]{{DISPLAYTITLE:Soukou-Tei / AB-Tei (Family)}}
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* [[Soukou-Tei No.4]]
  
 
==History==
 
==History==
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<!-- Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/ History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref>, as well as adding them at the end of the article. -->
 
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[[File:Soukou-Tei (1927) Ceremonial.png|left|thumb|Launched ceremony of "Sakigake" at Ujina port, Hiroshima pref. (1927)|400x400px]]
 
[[File:Soukou-Tei (1927) Ceremonial.png|left|thumb|Launched ceremony of "Sakigake" at Ujina port, Hiroshima pref. (1927)|400x400px]]
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In the 1920's, the Japanese Army started development of a new amphibious assault landing fleet which included vessels such as: 14 meter ''[[Daihatsu-class Landing Craft|Daihatsu-]]''[[Daihatsu-class Landing Craft|class Landing Craft]], the world's first landing craft carrier ([[wikipedia:Japanese_amphibious_assault_ship_Shinshū_Maru|''Shinshū Maru'']]) and other auxiliary vessels. The AB-Tei-class was developed to provide close support for the new line of amphibious assault vessels and was supposed to be transported just like all the other landing craft.
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In the 1920s, the Japanese Army started development of a new amphibious assault landing fleet which included vessels such as: 14 meter [[Daihatsu-class Landing Craft|''Daihatsu''-class Landing Craft]], the world's first landing craft carrier ([[wikipedia:Japanese_amphibious_assault_ship_Shinshū_Maru|''Shinshū Maru'']]) and other auxiliary vessels. The AB-Tei-class was developed to provide close support for the new line of amphibious assault vessels and was supposed to be transported just like all the other landing craft.
  
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In 1928, the [[Soukou-Tei (1927)|prototype boat]] was completed and named ''Sakigake'' (さきがけ, Pioneer). It was 14.4 meters, displaced 16 tons, initially ran on gasoline, and was armed with two [[Type 38 pattern 1907 (6.5 mm)|6.5 mm Type 38 machine guns]] and one [[Type 11 pattern 1922 (37 mm)|37 mm "''Sniper''" gun]].
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In 1928, the [[Soukou-Tei (1927)|prototype boat]] was completed and named ''Sakigake'' (さきがけ, Pioneer). It was 14.4 metres, displaced 16 tons, initially ran on gasoline, and was armed with two [[Type 38 pattern 1907 (6.5 mm)|6.5 mm Type 38 machine guns]] and one [[Type 11 pattern 1922 (37 mm)|37 mm ''"Sniper"'' gun]].
  
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In 1930, the second boat, ''Kachidoki'' (勝鬨, Battle Cry), was completed. It was enlarged at from 14.4 meters to 20 meters with a 20 ton displacement, converted to a diesel engine, and its armament was upgraded to one [[Type 90 (57 mm)|57 mm ''Type 90'' tank gun]]  and two [[Type 89 'special' (7.7 mm)|7.7 mm ''Type 89'' 'special' machine guns]]. In 1932, ''Kachidoki'' saw action during the landing operation at Shanghai during the [[wikipedia:January_28_incident|January 28 incident]] where the ''Kachidoki'' fired upon Chinese coastal defenses and laying smoke for the landing vessels, the AB-3 Proved very effective as only 2 soldiers died in the landing operation.
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In 1930, the second boat, ''Kachidoki'' (勝鬨, Battle Cry), was completed. It was enlarged from 14.4 metres to 20 metres with a 20 ton displacement, converted to a diesel engine, and its armament was upgraded to one [[Type 90 (57 mm)|57 mm ''Type 90'' tank gun]] and two [[Type 89 'special' (7.7 mm)|7.7 mm ''Type 89'' 'special' machine guns]]. In 1932, ''Kachidoki'' saw action during the landing operation at Shanghai during the [[wikipedia:January_28_incident|January 28 incident]] where the ''Kachidoki'' fired upon Chinese coastal defences and laid smoke for the landing vessels, it proved very effective as only 2 soldiers died in the landing operation.
  
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{{clear}}
 
 
[[File:Soukou-Tei No.3 Lift.jpg|thumb|AB-Tei No.3 being lifted|400x400px]]
 
[[File:Soukou-Tei No.3 Lift.jpg|thumb|AB-Tei No.3 being lifted|400x400px]]
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In 1933, The third boat got a hull revision to a size of 15.5 meters with 17.5 tons displacement with a new engine for a higher top speed and a more effective way of welding the hull decreasing is mass. It kept the same armament as ''Kachidoki''. ''Armored Boat No. 3 (AB-3)'' was chosen as the final design and 23 additional boats were built (designated ''AB-4'' through ''AB-26'').
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In 1933, the third boat got a hull revision to a size of 15.5 metres with 17.5 tons displacement with a new engine for a higher top speed and a more effective way of welding the hull decreasing its mass. It kept the same armament as ''Kachidoki''. ''Armored Boat No. 3 (AB-3)'' was chosen as the final design and 23 additional boats were built (designated ''AB-4'' through ''AB-26'').
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In 1937, the design was again changed increasing the length to 17.5 metres with 20 tons displacement which allowed it to load munitions or infantry and the speed increased to 14 knots; 10 boats of this setup were built.
  
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In 1937, the design was again changed increasing the length to 17.5 meters with 20 tons displacement which allowed it to load munition or infantry and the speed increased to 14 knots; 10 boats of this setup were built. 
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In 1938, the model was scrapped for extra munitions or infantry load by shortening it to 16.5 metres and a second 57 mm tank gun was added; 11 boats of this setup were built.
  
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In 1938, the design was reduced in length to 16.5 meters with 20 tons displacement and a second 57 mm tank gun added; 11 boats of this setup were built by Osaka Iron Works.
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In 1939, the final remodel took place. The boat was made lighter at 16.5 tons displacement by removing the second 57 mm tank gun without any additional changes; 19 boats of this setup were built.
  
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In 1939, The final remodel took place. The displacement of the ship was reduced to 16.5 tons and the second 57 mm tank gun removed; 19 boats of this setup were built by Osaka Iron Works.
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As the Soukou-Tei was an escort boat for landing vessels, the Army also wanted develop a faster patrol boat to compete with American PT boats. Out of this need, the [[Ka-Ro (Family)|Type 4 Ka-Ro]] was developed.
  
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Due to her slow speed, she was eventually outclassed by the American patrol torpedo boats and a Japanese equivalent was developed: [[Ka-Ro (Family)]].
 
 
[[Category:Family pages]]
 
[[Category:Family pages]]

Revision as of 13:18, 10 January 2022


Description

ArtImage AB-Tei (Family).png

The Soukou-Tei-class (装甲艇, "armored boat"), or simplified as the AB-Tei-class, was a type of armoured gunboat used by the Imperial Japanese Army in the Second Sino-Japanese War and World War II.

These would be used in conjunction with an army naval landing as an escort to provide firepower and suppression cover for the landing. Armed with tank-like turrets housing machine guns and even tank-sized cannons ranging from 37 mm to 57 mm, these would prove very useful and successful for army landings.

A total of 56 boats would be completed.

Vehicles

Rank I

Rank II

History

Launched ceremony of "Sakigake" at Ujina port, Hiroshima pref. (1927)

In the 1920s, the Japanese Army started development of a new amphibious assault landing fleet which included vessels such as: 14 meter Daihatsu-class Landing Craft, the world's first landing craft carrier (Shinshū Maru) and other auxiliary vessels. The AB-Tei-class was developed to provide close support for the new line of amphibious assault vessels and was supposed to be transported just like all the other landing craft.

In 1928, the prototype boat was completed and named Sakigake (さきがけ, Pioneer). It was 14.4 metres, displaced 16 tons, initially ran on gasoline, and was armed with two 6.5 mm Type 38 machine guns and one 37 mm "Sniper" gun.

In 1930, the second boat, Kachidoki (勝鬨, Battle Cry), was completed. It was enlarged from 14.4 metres to 20 metres with a 20 ton displacement, converted to a diesel engine, and its armament was upgraded to one 57 mm Type 90 tank gun and two 7.7 mm Type 89 'special' machine guns. In 1932, Kachidoki saw action during the landing operation at Shanghai during the January 28 incident where the Kachidoki fired upon Chinese coastal defences and laid smoke for the landing vessels, it proved very effective as only 2 soldiers died in the landing operation.

AB-Tei No.3 being lifted

In 1933, the third boat got a hull revision to a size of 15.5 metres with 17.5 tons displacement with a new engine for a higher top speed and a more effective way of welding the hull decreasing its mass. It kept the same armament as Kachidoki. Armored Boat No. 3 (AB-3) was chosen as the final design and 23 additional boats were built (designated AB-4 through AB-26).

In 1937, the design was again changed increasing the length to 17.5 metres with 20 tons displacement which allowed it to load munitions or infantry and the speed increased to 14 knots; 10 boats of this setup were built.

In 1938, the model was scrapped for extra munitions or infantry load by shortening it to 16.5 metres and a second 57 mm tank gun was added; 11 boats of this setup were built.

In 1939, the final remodel took place. The boat was made lighter at 16.5 tons displacement by removing the second 57 mm tank gun without any additional changes; 19 boats of this setup were built.

As the Soukou-Tei was an escort boat for landing vessels, the Army also wanted develop a faster patrol boat to compete with American PT boats. Out of this need, the Type 4 Ka-Ro was developed.

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