tanks/vehicles Type 75 MRLS & SPH

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I don't have much time for an intro so here's the articles, specs, and pics:

 

155mm Type 75 MRLS (source links below -- to be laid out soon):

 

• http://www15.tok2.com/home/lttom/military-powers_jgsdf/other/military-powers_75mssr.html
• https://en.wikipedia.org/wiki/Type_75_130_mm_Multiple_Rocket_Launcher
• https://ja.wikipedia.org/wiki/75式130mm自走多連装ロケット弾発射機
• http://www.militaryfactory.com/armor/detail.asp?armor_id=719
• http://www.military-today.com/artillery/type_75_mlrs.htm
• http://combat1.sakura.ne.jp/75SHIKIR.htm
• http://www.geocities.jp/aobamil/shasin/75MLR/75MLR.html
• http://blogs.yahoo.co.jp/okura12/35735041.html

 

155mm Type 75 SPH:

 

 

Some History:

 

　Development of the 75 self-propelled grenade guns began in 1962. Development was advanced in parallel with 74-type self-propelled gun mounted with 105 mm. Although the development concept is unknown, it is probably "to make a tow gun self-propelled and improve mobility more." The car body was made by Mitsubishi Heavy Industries, especially the engine, bore and stroke were commonly used with 74 type tanks and 73 type armored cars that were also being developed at the time (bore 135 mm, stroke 150 mm). Only the cylinder is different (74 type tank is 10 cylinder, 73 type armored car is 4 cylinder). The undercarriage is the same as the five rolling wheels, the 74 type tank and the 73 type armored car, but the point that is different from these is that it has grounded the induction wheel, which has greatly contributed to ensuring the stability at the time of shooting. The engine is placed in front of the car body and the battle room in the rear is widely taken. 

　Japan steelmaker was responsible for turret capable of rotating 360 °. The 155 mm gun mounted was also developed by Nippon Steel Corporation newly, not the 155 mm howitzer M1 that was then adopted by the SDF. Completion was 30 caliber 155 mm artillery, compared with the range of 15 km of M 1 howitzer, this range greatly increased to 19 km. In addition, it is said that a cannon with a long barrel of 30 caliber has power in combat fights. 

　This 75-type self-propelled grenade gun is full of sighting equipment, it consists of a panoramic sighting device, a direct sighting device, an electric high-level sighting device, and a collimator. Especially direct sighting machine is not in ordinary self-propelled gun, but in some cases short range fighting will be possible, and it is impossible to penetrate the armor of the tank, but it makes impossible to aim at the undercarriage It will be. In any case, the hit accuracy is quite high with this fuller sight. 

　The prototype vehicle was completed in 1974, and four prototype vehicles were completed by the following Showa 47, but it was not adopted yet. The reason is that we wanted to improve the loading mechanism better, so we wanted to raise the launch speed, but as we got 155 mm gun it was nearly 40 kilometers even with cannon bullets, so the launch speed would be The limit naturally comes out. Several plans came out at the time of planning, eventually it is said that two kinds of mechanisms were prototyped. One of them is a type loaded with a revolver type rotary drum magazine on the left and right sides of the artillery artillery tail, this method will eventually be adopted. This method has precedent, and AMX - 13 of the French tank adopts this system. However, when considering recruitment in tanks, there is a disadvantage that the turret will inevitably become big if it is a drum magazine type, so there are no examples other than this AMX - 13 in the automatic loading mechanism in tanks. However, if self-propelled guns are shooting from behind, there is no problem even if it gets bigger. Also, since it is possible to mount an automatic loading mechanism at low cost, it seems that adoption of this method was not bad. However, there are no examples of adopting this system for self-propelled guns of other countries. The reason is that there are still many disadvantages, so it is easy to break if foreign objects get clogged, and although this is the biggest disadvantage, the number of bullets that can be installed decreases because of the automatic loading mechanism that takes up capacity. In addition, the number of bullets carried by the 75-type self-propelled grenade gun is 28 in total, 9 in the drum magazine and 10 in the car. There are the same number of charges and 56 funnels are loaded why the fuse is loaded. Should I quickly load only bullets and gunpowder from outside the car? 

　Although the vehicle is not as light as 25.3 tons, the car body and turret are all made of aluminum alloy and are finished as light as possible. There are not many even if it is attacked by tanks and cannons, but there is no problem because the shooting from the back is the subject. However, there is no crossing capability. Was not it a problem of this neighborhood? 

　Compared with the 74 type self-propelled grenade gun that was developing at the same time, adoption was delayed by one year due to the improvement of the above mechanism etc. It was officially named "75-inch 155 mm self-propelled grenade gun" in October 1955. Originally it was about 5 a year, but due to the subsequent increase in defense expenses, it reached an annual output of 30 in the peak period. Total number of production was 201 for both Japan and self-propelled guns of the Japan Self Defense Force. Synchronous 74-style self-propelled guns are in contrast to the fact that there are only 20 productions because there is not much power as 105 mm cannon. Only Hokkaido and Mt. Fuji who have tank divisions are deployed. Although I want all special subjects, I can not deploy this 75-type self-propelled grenade gun with a unit price of 290 million yen so much, and in the Showa 58 era FH 70 which can be said as the definitive version of a towed self-propelled cannon to the SDF There are also points that have been deployed. This FH 70 is also because the maximum towing speed is 100 km, the range is also normal, 24 km, and the rocket assisted bullet is 30 km, which is considerably higher than the 75 type self-propelled grenade cannon. 

　The 75-type self-propelled grenade guns did not adopt rocket-assisted bombs with poor hit accuracy, so the range of 19 km was the standard at the time of adoption, but the ranges came short when it came in the 1990s. In 1998, therefore, a new 155 mm self-propelled grenade gun was developed and deployed. Although the details of this new self-propelled grenade gun have not been announced, it is said to be able to fly 30 kilometers even if ordinary ammunition because of 52 long caliber barrel. Although it will be deployed and converted to this new self-propelled grenade gun one by one, it seems that 75 years self-propelled grenade guns will continue to be deployed about 20 years ago.

 

source: http://sweeper.a.la9.jp/pamzer/nippon/75ut.htm

 

Military-Today.com:

Spoiler

Development of the Japanese Type 75 self-propelled howitzer began in 1969. First prototype was built in 1971. This artillery system entered service with the JGSDF in 1975. Production of the Type 75 ceased in 1988 with a total of 201 howitzers built. The Type 75 was not exported, as Japan's laws do not allow to export military equipment. The Type 75 is now gradually replaced by the Type 99 self-propelled howitzer.

   This self-propelled artillery system is fitted with indigenous 155-mm / L30 howitzer, fitted with an autoloader. It fires standard and rocket-assisted HE-FRAG projectiles, smoke and illumination projectiles. This howitzer is compatible with all standard NATO 155-mm ammunition. Maximum range of fire is 19 km with standard HE-FRAG round and 24 km with rocket assisted round. Maximum rate of fire is 6 rounds per minute.

   Secondary armament consists of 12.7-mm machine gun, mounted on top of the roof.

   Aluminum armor of the Type 75 provides protection against small arms fire and artillery shell splinters. It is fitted with an NBC protection and automatic fire suppression systems.

   The Type 75 SPH uses a number of automotive components of the Japanese Type 74 main battle tank. Vehicle is powered by the Mitsubishi 6 ZF diesel engine, developing 450 horsepower.

 

Entered service 1975 Crew 6 men Dimensions and weight Weight 25.3 t Length (gun forward) 7.79 m Hull length 6.64 m Width 3.09 m Height 2.55 m Armament Main gun 155-mm Barrel length 30 calibers Machine guns 1 x 12.7-mm Projectile weight 43.5 kg Maximum firing range 19 - 24 km Maximum rate of fire 6 rpm Elevation range - 5 to + 65 degrees Traverse range 360 degrees Ammunition load Main gun 28 rounds Machine guns 1 000 rounds Mobility Engine Mitsubishi 6 ZF diesel Engine power 450 hp Maximum road speed 47 km/h Range 300 km Maneuverability Gradient 60% Side slope 30% Vertical step 0.7 m Trench 2.5 m Fording 1.3 m

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http://www.military-today.com/artillery/type_75_howitzer.htm

 

Wikipedia (English & Japanese Editions):

• https://en.wikipedia.org/wiki/Type_75_155_mm_self-propelled_howitzer
• https://ja.wikipedia.org/wiki/75式自走155mmりゅう弾砲

 

Japanese source #1 (in Japanese and English):

Spoiler

In Japanese (original):

Spoiler

75式155mm自走榴弾砲

	全長：　　　　　　　　7.79m 車体長：　　　　　　 5.68m 全幅：　　　　　　　　2.98m 全高：　　　　　　　　2.55m 重量：　　25.3t（戦闘重量) 乗員数：　　　　　　　6名	武装：30口径155mm砲×1 　　　　（28発搭載） 　　　　12.7mm機関銃×1 　　　　（600発搭載） 動力：三菱6ZF 　　　　400馬力ディーゼル 　　　　6気筒空冷 走行性能：最大速度：47km/h 総生産台数：201両
ここ機甲課の説明文に何度も書いていると思うけども、今も昔も正規軍同士の地上戦闘は火力がモノをいう。火力とはようは大砲なのだけども、実際に戦闘での死傷者は戦闘状況や地域によりけりだけども、大抵は銃撃よりも砲撃での死傷が多い。教科書通りの攻め方といえば、砲撃で相手陣地を叩いて突撃だけど、歩兵の突撃時には防御側は大抵混乱しているから、普通の野戦築城レベルだったら、たいした抵抗もせずに撤退するからとも思える。ともあれ遠距離砲が重要なのは野球だけではない(謎)。 　75式自走榴弾砲は開発開始が昭和44年。105mm搭載の74式自走砲と平行して開発が進められた。開発コンセプトは不明だけども、「牽引砲を自走化してより機動力を向上させる」という事なのだろう。車体は三菱重工製で、特にエンジンは、ボアとストロークを当時同じく開発中だった74式戦車と73式装甲車と共通化した（ボア135mm、ストローク150mm）。違っているのは気筒のみである（74式戦車は10気筒。73式装甲車は4気筒）。足回りも、5個の転輪と74式戦車や73式装甲車と同じだけども、これらと違う点は誘導輪を接地させている点でこれは射撃時の安定性確保におおいに役だった。エンジンも車体前方に配置して後方の戦闘室を広くとっている。 　360°回転可能な砲塔は日本製鋼が担当した。搭載する155mm砲も当時自衛隊で採用していた155mm榴弾砲M1ではなく、新規に日本製鋼が開発した。完成したのが30口径155mm砲でM1榴弾砲の射程15kmに比べてこちらの射程は19kmと大幅にアップした。また、30口径という長い砲身の大砲は対戦車戦闘にも威力があるという。 　この75式自走榴弾砲は照準器もの充実していて、パノラマ照準器・直接照準器・電気高低照準器・コリメーターからなっている。特に直接照準器は普通の自走砲にはないものだけども、場合によっては近距離戦闘もありえるだろうし、戦車の装甲を貫通させるのは不可能だけど、足回りを狙って行動不能にはさせられるだろう。ともかく、この充実した照準器によって命中精度はかなり高い。 　試作車両は昭和46年には完成し、翌昭和47年までに4両の試作車両が完成したものの、まだ制式採用はされなかった。理由は装填機構をよりよく改良したかったためで、ようは発射速度を上げたいためだけども、155mm砲となってくると大砲の弾だけでも40キロ近くはあるので、人力装填だと発射速度が自ずと限界がでてくる。計画時にはいくつかの案が出て、結局は2種類の機構のが試作されたとされる。そのうちの1つが大砲の砲尾の左右にリボルバー式の回転式ドラム弾倉を装填したタイプで、この方式のが結局採用される事になる。この方式は前例があり、フランスの戦車のAMX-13がこの方式を採用している。ただ、戦車での採用を考えた場合、ドラム弾倉式だとどうしても砲塔が大きくなってしまう欠点があるので、戦車での自動装填機構にはこのAMX-13以外に採用例はない。ただ、自走砲なら後方からの射撃なので大きくなっても問題はない。また、安価に自動装填機構を搭載できるので、この方式の採用は悪くはなかったと思える。しかしながら、他国の自走砲にもこの方式の採用例はない。理由はやはり欠点が多いからで、異物が詰まると故障しやすいのと、あとこれが最大の欠点だけども、容量を取る自動装填機構のため、搭載できる弾数が減ってしまうのである。なお、75式自走榴弾砲の搭載弾数はドラム弾倉に9発づつと車内に10発の計28発。装薬も同数で信管はなぜか56発分搭載されている。車外から弾と火薬のみを迅速に装填すればいいのだろうか？ 　車両は25.3tと軽い方ではないけども、車体と砲塔はすべてアルミ合金製で、極力軽く仕上げられている。戦車や大砲の攻撃を受けたらひとたまりもないけども後方からの射撃が主体なので問題はないのだろう。ただ、渡河能力はない。この辺問題にはならなかったのだろうか？ 　同時開発していた74式自走榴弾砲と比べて上記の仕組みなどの改良で採用は1年遅れた。昭和50年10月に正式に「75式155mm自走榴弾砲」と命名された。当初は年産5両程度だったけども、その後の防衛費の伸びもあり最盛期には年産30両まで膨れ上がった。総生産数は201両と日本自衛隊の自走砲にしては結構生産された。同期の74式自走砲は105mm砲という威力があまりないために生産数が20両しかなかったのに比べたら対照的ではある。配備先は戦車師団がある北海道と富士教導団のみ。特科すべてに欲しいところだけども、単価2億9000万円のこの75式自走榴弾砲をそうそう配備できるはずもなく、また昭和58年度には牽引自走砲の決定版ともいえるFH70が自衛隊にも配備されだした点にもある。このFH70は最大牽引速度が100キロで射程も普通弾で24キロ、ロケットアシスト弾で30キロと75式自走榴弾砲に比べて相当性能が高かったためもある。 　75式自走榴弾砲は命中精度が悪いロケットアシスト弾を採用しておらず、そのため射程19キロは採用当時は標準だったけども、90年代になってくると射程が不足してきた。そのため平成10年には新型の155mm自走榴弾砲が開発完了して配備されだした。この新型自走榴弾砲は詳細は公表されていないけども52口径という長い砲身のため普通弾でも30キロは飛ばせるという。逐一この新しい自走榴弾砲に配備変換されていく事にはなるものの、むこう20年ぐらいは75式自走榴弾砲が配備されつづけるのだろう。

 

In English:

Spoiler

75 formula 155 mm self-propelled grenade gun

	Overall length: 7.79m  body length: 5.68m  overall width: 2.98m  Height: 2.55m  Weight: 25.3t (combat weight)  Number of passengers: 6 people	Armed: 30 caliber 155mm cannon 1 ×  　　　　(28 shots installed) 　　　　12.7Mm machine gun 1 ×  　　　　(600 shots installed) power: Mitsubishi 6ZF  　　　　400 horsepower diesel  　　　　six-cylinder air-cooled  driving performance: maximum speed: 47km / h  the total production volume: 201 cars
I think that I've written it in the explanatory note of the Division Division many times, but even now in the ground combat between the regular forces the fire power is thing. Although it is a cannon like firepower, actually casualties in battle are more battle situation and regional, but mostly there are more casualties from bombardment than shoots. Speaking of textbooks as a way to attack, it is a charge by striking opponent positions by bombardment, but the defense side is mostly confused when an infantry attacks, so it seems that it would be withdrawing without much resistance if it is a normal field warfare level . Anyway, it is not only baseball that the far gun is important (mystery).  　Development of the 75 self-propelled grenade guns began in 1962. Development was advanced in parallel with 74-type self-propelled gun mounted with 105 mm. Although the development concept is unknown, it is probably "to make a tow gun self-propelled and improve mobility more." The car body was made by Mitsubishi Heavy Industries, especially the engine, bore and stroke were commonly used with 74 type tanks and 73 type armored cars that were also being developed at the time (bore 135 mm, stroke 150 mm). Only the cylinder is different (74 type tank is 10 cylinder, 73 type armored car is 4 cylinder). The undercarriage is the same as the five rolling wheels, the 74 type tank and the 73 type armored car, but the point that is different from these is that it has grounded the induction wheel, which has greatly contributed to ensuring the stability at the time of shooting. The engine is placed in front of the car body and the battle room in the rear is widely taken.  　Japan steelmaker was responsible for turret capable of rotating 360 °. The 155 mm gun mounted was also developed by Nippon Steel Corporation newly, not the 155 mm howitzer M1 that was then adopted by the SDF. Completion was 30 caliber 155 mm artillery, compared with the range of 15 km of M 1 howitzer, this range greatly increased to 19 km. In addition, it is said that a cannon with a long barrel of 30 caliber has power in combat fights.  　This 75-type self-propelled grenade gun is full of sighting equipment, it consists of a panoramic sighting device, a direct sighting device, an electric high-level sighting device, and a collimator. Especially direct sighting machine is not in ordinary self-propelled gun, but in some cases short range fighting will be possible, and it is impossible to penetrate the armor of the tank, but it makes impossible to aim at the undercarriage It will be. In any case, the hit accuracy is quite high with this fuller sight.  　The prototype vehicle was completed in 1974, and four prototype vehicles were completed by the following Showa 47, but it was not adopted yet. The reason is that we wanted to improve the loading mechanism better, so we wanted to raise the launch speed, but as we got 155 mm gun it was nearly 40 kilometers even with cannon bullets, so the launch speed would be The limit naturally comes out. Several plans came out at the time of planning, eventually it is said that two kinds of mechanisms were prototyped. One of them is a type loaded with a revolver type rotary drum magazine on the left and right sides of the artillery artillery tail, this method will eventually be adopted. This method has precedent, and AMX - 13 of the French tank adopts this system. However, when considering recruitment in tanks, there is a disadvantage that the turret will inevitably become big if it is a drum magazine type, so there are no examples other than this AMX - 13 in the automatic loading mechanism in tanks. However, if self-propelled guns are shooting from behind, there is no problem even if it gets bigger. Also, since it is possible to mount an automatic loading mechanism at low cost, it seems that adoption of this method was not bad. However, there are no examples of adopting this system for self-propelled guns of other countries. The reason is that there are still many disadvantages, so it is easy to break if foreign objects get clogged, and although this is the biggest disadvantage, the number of bullets that can be installed decreases because of the automatic loading mechanism that takes up capacity. In addition, the number of bullets carried by the 75-type self-propelled grenade gun is 28 in total, 9 in the drum magazine and 10 in the car. There are the same number of charges and 56 funnels are loaded why the fuse is loaded. Should I quickly load only bullets and gunpowder from outside the car?  　Although the vehicle is not as light as 25.3 tons, the car body and turret are all made of aluminum alloy and are finished as light as possible. There are not many even if it is attacked by tanks and cannons, but there is no problem because the shooting from the back is the subject. However, there is no crossing capability. Was not it a problem of this neighborhood?  　Compared with the 74 type self-propelled grenade gun that was developing at the same time, adoption was delayed by one year due to the improvement of the above mechanism etc. It was officially named "75-inch 155 mm self-propelled grenade gun" in October 1955. Originally it was about 5 a year, but due to the subsequent increase in defense expenses, it reached an annual output of 30 in the peak period. Total number of production was 201 for both Japan and self-propelled guns of the Japan Self Defense Force. Synchronous 74-style self-propelled guns are in contrast to the fact that there are only 20 productions because there is not much power as 105 mm cannon. Only Hokkaido and Mt. Fuji who have tank divisions are deployed. Although I want all special subjects, I can not deploy this 75-type self-propelled grenade gun with a unit price of 290 million yen so much, and in the Showa 58 era FH 70 which can be said as the definitive version of a towed self-propelled cannon to the SDF There are also points that have been deployed. This FH 70 is also because the maximum towing speed is 100 km, the range is also normal, 24 km, and the rocket assisted bullet is 30 km, which is considerably higher than the 75 type self-propelled grenade cannon.  　The 75-type self-propelled grenade guns did not adopt rocket-assisted bombs with poor hit accuracy, so the range of 19 km was the standard at the time of adoption, but the ranges came short when it came in the 1990s. In 1998, therefore, a new 155 mm self-propelled grenade gun was developed and deployed. Although the details of this new self-propelled grenade gun have not been announced, it is said to be able to fly 30 kilometers even if ordinary ammunition because of 52 long caliber barrel. Although it will be deployed and converted to this new self-propelled grenade gun one by one, it seems that 75 years self-propelled grenade guns will continue to be deployed about 20 years ago.

.

http://sweeper.a.la9.jp/pamzer/nippon/75ut.htm

 

Japanese source #2 (in Japanese and English):

Spoiler

In Japanese (original):

Spoiler

75式自走155mm榴弾砲
 

75式自走155mm榴弾砲は、それまでアメリカ軍から有償供与されていたM52 105mm自走榴弾砲、M44 155mm自走榴弾砲の後継として74式自走105mm榴弾砲と同時期に開発されたもので、現在陸上自衛隊の主力自走榴弾砲となっている。 1969年度から部分試作が始められ、1971年度には全体試作に進んでいる。 1972年から技術試験、次いで実用試験が行われ、1975年10月に「75式自走155mm榴弾砲」として制式化された。 合計で201両が生産され北部方面隊の各師団特科連隊、つまり第2、第5、第7、第11特科連隊および特科教導隊等に配備されている。 車体は三菱重工業が開発を担当し、耐弾能力の強化と軽量化を目的として防弾アルミ板の溶接構造となっているが、74式自走105mm榴弾砲のように浮航はできない。 車体前部右側が操縦手席、前部左側が機関室で、エンジンはZF系の空冷2ストローク・ディーゼルが搭載されており、変速機はパワーシフト方式、操向機はハイドロスタティック方式が採用されている。 足周りは全高を抑えるために上部支持輪の無い方式を採用しており、誘導輪を接地させて接地長を長くし、射撃時の車体安定を図っている。 主砲の155mm榴弾砲は中砲としては初の完全国産砲であり、開発は日本製鋼所である。 砲身長は30口径で、隔螺式閉鎖機と変後座長の液気圧式復座機を持つ嚢砲である。 閉鎖機は初弾装填時のみ手動で開放され、その後は発砲時の反動を利用して自動的に開放される。 俯仰角は約－5～＋65度で、俯仰は油圧によって行われる。 照準には、従来の標桿照準に代わってコリメーターが使用されている。 また砲塔上面右寄りには「J2型」と呼ばれるパノラマ式照準機が装備されており、倍率は4倍、視野は10度となっている。 また特徴として、方向諸元のディジタル表示装置が備えられていることが挙げられる。 日本製鋼所の手になる防弾アルミ製の砲塔は全周旋回が可能で、油圧による動力旋回の場合、360度旋回を約30秒で行うことができる。 また俯仰、旋回共に手動による操作も可能で、旋回については高速・低速2段の切り換えが可能となっている。 最大射程は、新たに開発された弾丸重量43.5kgの75式榴弾（長射程弾）と専用の9号装薬の組み合わせで19,064mとされている。 この時の砲口初速は、720m／秒である。 砲塔後部には、各9発の弾丸を格納するドラム式の弾倉が左右に並べて2基搭載されており、中央にある伸縮式の装填トレイとラマーによって弾丸の自動装填が可能となっている。 信管の装着や測合については、このドラムに収納された状態でもできる。 信管は戦闘室内左右にある4つのコンテナに1個当たり14発分、計56発分を収納できるようになっている。 弾丸の装填は、以下のようなサイクルで行われる。 まず油圧駆動のクランプが外れ、弾丸が1発装填トレイに落ちる。 次に弾丸を載せた装填トレイが砲尾に前進し、さらに一部が手動で砲尾環の奥まで延ばされる。 次に装填トレイの上にあった装填機が砲身の軸線位置まで下がり、油圧駆動のラマーが伸びて弾丸を砲尾に押し込む。 最後に全ての装置が元の位置に戻り、次弾の装填に備える。 以上のようなサイクルが繰り返され、2基のドラムに収められた各9発、計18発の弾丸が機力装填される。 通常、続いて装填手によって射距離に応じた装薬が装填され、閉鎖機を閉じて発射となる。 自動装填装置の作動角度は約6度に固定されているが、スイッチ1つで自動的に装填位置に砲身を俯仰させる自動復帰装置を有している。 発射速度は、最大で約6発／分とされている。 携行する弾丸は床下の10発と装填ドラム内の18発合わせて28発となっており、同じく装薬は砲塔内の10発、戦闘室内右側の8発、左側の10発合わせて28発を携行する。 75式自走155mm榴弾砲は開発時は一流の性能を持っていたが、現在では旧式化してしまっているため新型の99式自走155mm榴弾砲によって更新が進められ、2014年3月までに全車が退役した。

＜75式自走155mm榴弾砲＞ 全長：　　　　7.79m 車体長：　　 6.64m 全幅：　　　　2.98m 全高：　　　　2.55m 全備重量：　25.3t 乗員：　　　　6名 エンジン：　　三菱6ZF 2ストロークV型6気筒空冷ディーゼル 最大出力：　450hp／2,200rpm 最大速度：　47km／h 航続距離：　300km 武装：　　　　75式30口径155mm榴弾砲×1　（28発） 　　　　　　　 12.7mm重機関銃M2×1　（1,000発） 装甲厚：

＜参考文献＞ ・「パンツァー1999年4月号　陸上自衛隊75式自走155mm榴弾砲 その開発過程と構造・機能」　林磐男／田村尚 　也　共著　　アルゴノート社 ・「パンツァー2011年7月号　陸自特科の自走化に貢献した75式自走155mm榴弾砲」　　アルゴノート社 ・「パンツァー2003年3月号　陸上自衛隊の試作車輌」　高城正士　著　　アルゴノート社 ・「パンツァー1999年6月号　陸上自衛隊 75式自走155mm榴弾砲」　　アルゴノート社 ・「パンツァー2009年1月号　陸上自衛隊の装備車輌」　　アルゴノート社 ・「パンツァー2014年3月号　陸上自衛隊AFV 2014」　　アルゴノート社 ・「世界のAFV 2011～2012」　　アルゴノート社 ・「異形戦車ものしり大百科　ビジュアル戦車発達史」　斎木伸生　著　　光人社 ・「世界の軍用車輌(2) 装軌式自走砲：1946～2000」　　デルタ出版 ・「陸上自衛隊 車輌・装備ファイル」　　デルタ出版 ・「自衛隊歴代最強兵器 BEST200」　　成美堂出版 ・「世界の最新陸上兵器 300」　　成美堂出版 ・「徹底解剖！世界の最強戦闘車両」　　洋泉社 ・「戦車名鑑 1946～2002 現用編」　　コーエー ・「世界の装軌装甲車カタログ」　　三修社

 

In English:

Spoiler

75 Formula self-propelled 155mm howitzer
 

75 type self-propelled 155 mm howitzer was developed at the same time as the 74-type self-propelled 105 mm howitzer as the successor to the M52 105 mm self-propelled grenade artillery gun, M44 155 mm self-propelled grenade gun that was previously paid by the US military. It is currently the leading Ground Self Defense Force self - propelled howitzer.  Partial prototyping started in 1969, and in 1971 the whole trial production is proceeding.  Technical tests since 1972, then practical tests were carried out, and in October 1975 it was formulated as "75 self-propelled 155 mm howitzer".  A total of 201 are produced and are deployed in each division special regiment of the Northern Territory Corps, namely the 2nd, 5th, 7th, 11th Special Regiment Regiment and Special Teaching Corps. The car body is in charge of development by Mitsubishi Heavy Industries, has a welding structure of ballistic aluminum plate for the purpose of strengthening and lightening the ballistic capability, but it can not float like the 74-type self-propelled 105 mm howitzer.  The front right side of the body is a pilot seat, the front left side is the engine room, the engine is equipped with ZF series air-cooled 2-stroke diesel, the power shift system is adopted as the transmission, the hydrostatic type is adopted as the steering unit ing.  In order to suppress the total height of the leg around the foot adopts a system without upper support wheels, the induction wheel is grounded to lengthen the contact length, and the vehicle body stability is aimed at shooting.  The main gun 's 155 mm howitzer is the first complete domestic cannon as a middle cannon, and the development is the Japan Steel Works.  The barrel length is 30 calibers, with a spiral closure machine and a posterior variable chaotic liquid pressure restorer.  The closing machine is opened manually only at the initial loading, and thereafter it is automatically released using recoil at the time of firing. The elevation angle is about -5 to + 65 degrees, and the elevation is performed by hydraulic pressure.  A collimator is used instead of the traditional stick aiming for aiming.  Also on the right side of the top of the turret is a panoramic sighting machine called "J2 type", the magnification is 4 times, the field of view is 10 degrees.  Also, as a feature, a digital display device of directional specifications is provided.  The bulletproof aluminum turret that will be handled by the Japan Steel Works can turn around the entire circumference, and in the case of power turning by hydraulic pressure, 360 degrees turn can be done in about 30 seconds.  Besides, it is possible to manually operate both elevation and turning, and it is possible to switch between high speed / low speed two steps for turning.  Maximum range is set to 19,064 m with a combination of a 75 type grenade (long range bullet) with a newly developed bullet weight of 43.5 kg and a special ninth medicine.  The muzzle initial velocity at this time is 720 m / sec.  On the rear part of the turret, two drum-type magazines containing nine bullets are mounted side by side on the left and right, and the bullet can be automatically loaded by the telescopic loading tray and lamar in the center.  Regarding wearing of fuses and measurement, it can be done even when it is stored in this drum.  The fuse is able to accommodate a total of 56 shops, in four containers on the left and right inside the battlefield, for 14 shots per piece.  Bullet loading is done in the following cycles.  First, the hydraulically driven clamp disengages, and the bullet drops into a single loading tray.  Next the loading tray carrying the bullet advances to the artillery, and part of it is manually extended to the back of the artillery ring.  Next, the loader on the loading tray is lowered to the axis position of the gun barrel, the hydraulically driven lamber stretches and pushes the bullet into the bomb. Finally, all the devices return to their original positions to prepare for the loading of the next bullet.  The cycle as described above is repeated, and each of the nine bullets contained in two drums, a total of 18 bullets are loaded on the machine. Normally, the charger corresponding to the shooting range is loaded by the loader, and the closing machine is closed to firing.  Although the operating angle of the automatic loading device is fixed at about 6 degrees, the automatic loading device has an automatic restoring device that automatically raises and lowers the gun barrel at the loading position with one switch.    The launch speed is set at about 6 shots / minute at the maximum. There are 10 bullets to carry and 28 shots from 18 in the loading drum, and 10 charges are also charged in the turret, 8 out of the right side of the battlefield and 28 shots from 10 on the left side To carry.    75 type self-propelled 155 mm howitzer had first-class performance at the time of development, but now it has become obsolete, renewal is proceeded with a new 99-inch self-propelled 155 mm howitzer, and by March 2014 All the cars were retired.

<75 Equation self-propelled 155mm howitzer> total length: 7.79m  body length: 6.64m  overall width: 2.98m  Height: 2.55m  gross weight: 25.3t  crew: 6 persons  Engine: Mitsubishi 6ZF 2-stroke V-type 6-cylinder air-cooled diesel  maximum output: 450hp / 2,200rpm  maximum speed: 47km / h  cruising range: 300km  armed: 75 equation 30 caliber 155mm howitzer × 1 (28 shots)  　　　　　　　 12.7Mm heavy machine gun M2 × 1 (1,000 shots)  armor thickness:

<Reference> - "Panzer, 1999 April 75 Ground Self-Defense Force formula self-propelled 155mm howitzer its development process and structure-function" HayashiIwaootoko / Sho Tamura  　Shinya co Argonaut  - "of Panzer 2011 July GSDF Tokuka It contributed to 75 formula self-propelled 155mm howitzer "Argonaut to the free-running of  the prototype vehicle" Goseong Masashi Author Argonaut's - "Panzer, 2003 March issue of the Ground self-Defense Force  ," Panzer June 1999 issue Ground self-Defense Force 75 formula own run 155mm howitzer "Argonaut  ," Panzer equipped vehicle of 2009 January issue Ground Self-Defense Force "Argonaut  ," Panzer 2014 March issue of the Ground Self-Defense Force AFV 2014 "Argonaut  ," the world of AFV 2011 ~ 2012 " Argonaut  , "variant tank knowledgeable Encyclopedia visual tanks evolution" Author Nobuo Saiki light person company  , "military vehicle of the world (2) crawler type self-propelled artillery: 1946 to 2000" delta publication  - "Ground self-Defense Force vehicles - equipped file "delta publication  ," Self-Defense Forces successive strongest weapon BEST200 "Seibido publication  ," the latest land weapon 300 "Seibido publication of the world  -" thorough dissection! strongest combat vehicles of the world, "Yosensha  -" tank Directory 1946-2002 working Hen "Koei  -" track-laying armored vehicle catalog of the world "Sanshusha

.

http://combat1.sakura.ne.jp/75SHIKIJ.htm

 

 

Specifications:

Manufacturer Design Period Introduction Year Mitsubishi & Japanese Iron Works 1969-1975 1975 Production Total Crew 201 6 men Dimensions and weight Weight 25.3 t Length (gun forward) 7.79 m Hull length 6.64 m Width 3.09 m Height 2.55 m Armament Main gun 155-mm Barrel length 30 calibers Machine guns 1 x 12.7-mm Projectile weight 43.5 kg Maximum firing range 19 - 24 km Maximum rate of fire 6 rpm Elevation range - 5 to + 65 degrees Traverse range 360 degrees Ammunition load Main gun 28 rounds Machine guns 1 000 rounds Mobility Engine Mitsubishi 6 ZF diesel Engine power 450 hp Maximum road speed 47 km/h Range 300 km Maneuverability Gradient 60% Side slope 30% Vertical step 0.7 m Trench 2.5 m Fording 1.3 m

http://www.military-today.com/artillery/type_75_howitzer.htm

http://www.militaryfactory.com/armor/detail.asp?armor_id=781

 

 Additional Images:

Spoiler

 

 

Video:

 

Thanks for the support! 

Edited January 23, 2017 by Results45
Edited poll to be less biased towards saying yes.

[blakeob 8,086]

Opem for discussion. 

[Asakaze 992]

Isn't that an indirect fire artillery?

[Optical_Ilyushin 5,554]

although I am unsure how willing the devs will be about MLRS and modern SPH, I like these and kinda want to see them ingame.

 

still gonna have to eyeball everything though, which is fine. 

 

+1

[Mercedes4321 4,695]

I don't see why not. Although if they are added I expect to see similar MLRSs and artillery vehicles for other nations.

Edited January 20, 2017 by Mercedes4321

[Baka_9_Cirno 55]

More reasons to play the underpowered is adequate

If this is added the brits are going to have a hard time reproving themselves lul :3

[Mercedes4321 4,695]

2 hours ago, Baka_9_Cirno said:

More reasons to play the underpowered is adequate

If this is added the brits are going to have a hard time reproving themselves lul :3

The British/Commonwealth will just bring out the Abbot and the Valkiri if this comes.

[Josh_Yong 328]

I fully support 

+1 and main tree pls

[Kanay 5,183]

Sorry but I hope such things won't be added into the game, there is no use for those in the game.

 

Edit : cannot vote no at the first question without answering something at the others, this will make the results false,  next questions need an option " i voted No at 1st question "

Edited January 22, 2017 by Kanay

[Vitasalato 681]

I'd rather see Developers spending precious development time modelling an actual useful tank, rather then this troll derp tank meant to attack primarily with indirect fire everything on the ground except MBTs.

 

Also you should add in the poll the "No" option in all questions.

[Results45 2,200]

6 hours ago, Vitasalato said:

I'd rather see Developers spending precious development time modelling an actual useful tank, rather then this troll derp tank meant to attack primarily with indirect fire everything on the ground except MBTs.

 

Also you should add in the poll the "No" option in all questions.

 

They should; this just to make sure they have no shortage 

 

There is (the one with the anime face); the rest are Qs about BR placement and personal opinion.

[Vitasalato 681]

48 minutes ago, Results45 said:

There is (the one with the anime face); the rest are Qs about BR placement and personal opinion.

 

I see, but why should I choose the BR or "Which vehicle are you most looking forward to?" if I'm looking for none of those two listed? I'm forced to answer at all questions if you are wondering.

[Results45 2,200]

33 minutes ago, Vitasalato said:

 

I see, but why should I choose the BR or "Which vehicle are you most looking forward to?" if I'm looking for none of those two listed? I'm forced to answer at all questions if you are wondering.

 

Because the majority of the playerbase wouldn't mind having them added and it if you had a choice once that happens you would.......your choice 

[blakeob 8,086]

8 hours ago, Kanay said:

Edit : cannot vote no at the first question without answering something at the others, this will make the results false,  next questions need an option " i voted No at 1st question "

 

8 hours ago, Vitasalato said:

Also you should add in the poll the "No" option in all questions.

Done. 

[Mai_Waffentrager 9,657]

There is absolutely no point. 

[dctpbpenn@psn 720]

Do these have direct fire capabilities? Does the SPH even have armor-piercing shells? If no, then no.

[Kanay 5,183]

3 hours ago, blakeob said:

 

Done. 

Thank, you, voted now  

[Results45 2,200]

6 hours ago, Vitasalato said:

I see, but why should I choose the BR or "Which vehicle are you most looking forward to?" if I'm looking for none of those two listed? I'm forced to answer at all questions if you are wondering.

 

5 hours ago, blakeob said:

Done. 

 

 

Yep. 

 

2 hours ago, *dctpbpenn said:

Do these have direct fire capabilities? Does the SPH even have armor-piercing shells? If no, then no.

 

Both do (like the Calliope and German SPGs). 

[*AllahHuAirlines 4,789]

IIRC the devs have already confirmed that artillery vehicles such as this will not be implemented. Besides, the maps in GF are far too small for it

[Results45 2,200]

1 hour ago, *AllahHuAirlines said:

IIRC the devs have already confirmed that artillery vehicles such as this will not be implemented. Besides, the maps in GF are far too small for it

 

Well there are ideas floating around the community of having 8-hour battles with NPC/player "spotter" or scout tanks calling for artillery on marked enemies 3-7km away on maps based around tactical objectives.......

• https://forum.warthunder.com/index.php?/topic/154250-a-possible-artillery-vehicle-solution/&do=findComment&comment=6579333
• https://forum.warthunder.com/index.php?/topic/154250-a-possible-artillery-vehicle-solution/&do=findComment&comment=6683243
• https://forum.warthunder.com/index.php?/topic/224132-world-war-mode-discussion-and-speculation/&do=findComment&comment=6456885
• https://forum.warthunder.com/index.php?/topic/166670-plane39s-maps-for-tanks/

.

[*AllahHuAirlines 4,789]

3 hours ago, Results45 said:

 

Well there are ideas floating around the community of having 8-hour battles with NPC/player "spotter" or scout tanks calling for artillery on marked enemies 3-7km away on maps based around tactical objectives.......

• https://forum.warthunder.com/index.php?/topic/154250-a-possible-artillery-vehicle-solution/&do=findComment&comment=6579333
• https://forum.warthunder.com/index.php?/topic/154250-a-possible-artillery-vehicle-solution/&do=findComment&comment=6683243
• https://forum.warthunder.com/index.php?/topic/224132-world-war-mode-discussion-and-speculation/&do=findComment&comment=6456885
• https://forum.warthunder.com/index.php?/topic/166670-plane39s-maps-for-tanks/

.

Call me a sceptic but I doubt GJ will implement that at any point in the future. Every update brings another variation of the urban close quarters knife-fight (quite frankly it's very boring playing this same basic 3 kill-corridor map design too).

 

Gaijin are relying on the fast-paced action of tiny 3x3km maps to pull customers in, rather than the slow burning thrill of larger maps. It's a shame, I wish I could play the larger maps more- however such vehicles would require a special event and map rotation to be viable. 

 

Besides, the current artillery system is fine. It's spammable but the dispersement of shots balances it out. 

[Optical_Ilyushin 5,554]

22 hours ago, *AllahHuAirlines said:

Call me a sceptic but I doubt GJ will implement that at any point in the future. Every update brings another variation of the urban close quarters knife-fight (quite frankly it's very boring playing this same basic 3 kill-corridor map design too).

 

Gaijin are relying on the fast-paced action of tiny 3x3km maps to pull customers in, rather than the slow burning thrill of larger maps. It's a shame, I wish I could play the larger maps more- however such vehicles would require a special event and map rotation to be viable. 

 

Besides, the current artillery system is fine. It's spammable but the dispersement of shots balances it out. 

 

I feel while small close quarters maps work for low tiers and as a "hook" for a larger audience in low-mid tiers, top tier needs a huge map overhaul, and increasing map size (like, full scale) would definitely work in line with top end players, who are already dedicated enough either by time or finances to invest in WT at a top tier level. full scale maps are therefore a logical design choice if not the immediate next step to fixing T5; T5 vehicles were historically designed for longer engagement distances, most T5 problems lie in terrible map design (and the stock grind grind, oh god the grind). the answer is therefore fixing maps (and the grind, oh god the grind).

[Results45 2,200]

25 minutes ago, Optical_Ilyushin said:

 

I feel while small close quarters maps work for low tiers and as a "hook" for a larger audience in low-mid tiers, top tier needs a huge map overhaul, and increasing map size (like, full scale).......full scale maps are therefore a logical design choice if not the immediate next step to fixing T5; T5 vehicles were historically designed for longer engagement distances, most T5 problems lie in terrible map design (and the stock grind grind, oh god the grind). the answer is therefore fixing maps (and the grind, oh god the grind).

 

Yeah I tend not to grind past 120,000RP (BR 6.3) unless I'm really into the Tier 5 stuff, but generally speaking, GF grinding starts getting ridiculous after 61,000-89,000RP (BR 5.3/5.7). 

Edited January 24, 2017 by Results45

[*AllahHuAirlines 4,789]

1 hour ago, Optical_Ilyushin said:

 

I feel while small close quarters maps work for low tiers and as a "hook" for a larger audience in low-mid tiers, top tier needs a huge map overhaul, and increasing map size (like, full scale) would definitely work in line with top end players, who are already dedicated enough either by time or finances to invest in WT at a top tier level. full scale maps are therefore a logical design choice if not the immediate next step to fixing T5; T5 vehicles were historically designed for longer engagement distances, most T5 problems lie in terrible map design (and the stock grind grind, oh god the grind). the answer is therefore fixing maps (and the grind, oh god the grind).

No argument there; a lot of my own tanks are best used at range & on flanks and so few maps allow me to successfully carry out that role. 

[Admiral_Aruon 2,264]

at face value alone: i'm for the type 75 SPH but not the MRLS.

 

i'm against the MRLS as these vehicles... just don't make sense. both as ingame vehicles and IRL. now if those missiles were guided that'd be different (though it'd still be shot down)... but as seen with the soviet katyusha/T-60 hybrid tank and how much of a joke it is, and the panzerwerfer which is slightly less comical and a tad bit more usable, purely MRLS vehicles just don't work in WT.

 

as for the SPH... does it have any kind of anti-tank ammunition? HEAT-FS? APFSDS? APHE? anything like that? because it just can't work if it can't fit as a REALLY beefed up Ferdinand.

 

ammo issues aside, something i gotta point out to my fellow forumites: check that vertical/horizontal traverse. (-5/+65 and 360 degree rotation) if it can blow your brains out from point plank range, it can be a direct fire vehicle, and this beast can even rotate it's doomsday cannon so it's not just even a ferdi/elefant-style casemate TD.

 

(though in all fairness this is moot point if the type 75 SPH lacks any kind of dedicated anti-tank shells)