Shipborne Model Type 4 20cm Anti-ground Rocket Launcher
No.348 艦載型 四式20cm対地噴進砲
Agat c.png Anti-Ground Equipment
Effects: Armor-2
Scrap value: Fuel 1 Ammo 3 Steel 1 Bauxite 1 (Unbuildable)

Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 348 Card.png

Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 348 Character.png

Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 348 Equipment.png

Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 348 Full.png

Refittable Class
Coastal Defense Ship Destroyer
Light Cruiser Torpedo Cruiser
Heavy Cruiser Training Cruiser
Aviation Cruiser Fast Battleship
Battleship Aviation Battleship
Light Carrier Standard Aircraft Carrier
Armored Carrier Seaplane Tender
Submarine Aircraft Carrying Submarine
Submarine Tender Fleet Oiler
Repair Ship Amphibious Assault Ship

Introduction

地対地ロケット兵装として、日本陸軍によって開発された試製四式噴進砲。圧倒的な火力を集中的に投射して、敵の地上戦力や陣地を破壊制圧する目的で整備され、防御戦にも実際に投入されました。本兵装は、同地対地噴進砲を艦載し、集中運用することで、敵地上兵力を叩く艦艇用対地if装備です。※本兵装は集中運用することで、さらに能力を発揮します。

The prototype Type 4 Rocket was developed by the Japanese Army as a surface-to-surface weapon. It was designed to suppress and destroy enemy ground forces and encampments using a concentrated projection of overwhelming force, and also saw use in defensive engagements. This is a hypothetical shipborne version of that weapon, to be installed in high densities on ships to strike enemy ground forces. *This equipment will display improved performance when used in high concentrations.

Notes

Unbuildable

Category Ships with Shipborne Model Type 4 20cm Anti-ground Rocket Launcher as stock equipment not found

Improvement

Agat c.pngShipborne Model Type 4 20cm Anti-ground Rocket Launcher[Edit]
Improvement Cost: Fuel 20 Ammo 120 Steel 30 Bauxite 10 Development Material Improvement Material S M T W T F S Helper Ship
Consumes: 1x Supply Transport Container Icon Simple.pngDrum Canister (Transport Use) 0 5/4 3/3  
Ar
O
Ak
Ar
O
Ak
Ar
O
Ak
Ar
O
Ak
Ar
O
 
Ar
O
 
Ar
O
Akitsushima Kai
Arashio Kai Ni
Ooshio Kai Ni
Consumes: 1x Anti-Aircraft Gun Icon Simple.png12cm 30-tube Rocket Launcher 6 5/8 4/6
Consumes: 2x Item Icon New Model Rocket Development Material.pngNew Model Rocket Development Material
1x Anti-Ground Equipment Icon Simple.pngShipborne Model Type 4 20cm Anti-ground Rocket Launcher

Produces: 1x Anti-Ground Equipment Icon Simple.pngType 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment)
10 20/36 7/13

Trivia

Although introduced late in the war, Japanese development in rocket technology was rapidly advancing with the assistance of German experiments and rocket designs influencing developments. First evidence of clear influence was in the rockets themselves featuring spin-stabilizers that greatly increased accuracy instead of the previous fin stabilizers. The Army also developed a more proper launching mechanism, a crude tube that improved the rocket's initial accuracy and direction instead of the Navy's frame ramp version. Although it looked visually like a mortar, rockets had to be loaded from the side by opening the hatch and it also used typical mortar equipment like a bipod and base plate. It was also found to be pretty accurate even among conventional mortars, consisting hitting the same 100 yard area from 3000 yards away enough to start fires. It was deployed in 1943 successfully during the Battle of Iwo Jima and Okinawa and was being prepared to be used in the defense of the home islands.

  • The rockets themselves could actually be launched from almost anything, including makeshift ramps, hollowed out wood cylinders, pipes, gutters and slopes on the ground.
  • The infighting between the IJN and IJA was getting so ridiculous, both developed pretty much the same rocket for double the cost. Only the IJA rocket was slightly longer for better range.
  • The rocket launcher required a crew of 10 men to operate.
  • It was considered a heavy mortar type by the IJA.
  • The base plate in the card art is positioned backwards just like it appears in a few historical pictures.

See also

Type 4 20cm Rocket Launcher

[Edit]List · Gallery · By Stats · Development · Improvement · Overweight / Fit Gun · Visible Bonuses
Main Gun Small QF 4.7inch Mk.XII Kai · 12cm Single (Kai 2· 120mm/50 Twin · 12.7cm Single · 12.7cm Twin (Model A (Kai 2· Model B · Model C · Model D (Kai 3)) · 130mm B-13 Twin
AA 10cm Twin HA · 12cm Single HA · 12.7cm HA LM (Single · Twin· 12.7cm HA K2 (Single · Twin· 5inch Single Mk.30 (Kai)
AAFD 10cm Twin HA + AAFD · 12.7cm Twin Model A Kai 3 + AAFD · 12.7cm Twin Model B Kai 4 + AAFD · 5inch Single Mk.30 Kai + GFCS Mk.37
Medium 14cm Single · 14cm Twin (Kai· Bofors (15cm Twin 1938 (Kai· 15.2cm Twin 1930· 15.2cm Twin (Kai· 152mm/55 Triple (Kai· 6inch Twin Mk.16 (mod.2· 6inch Twin Mk.XXI · 15.5cm Triple (Kai· 20.3cm Twin ((No.2) · (No.3)· SKC34 20.3cm Twin · 203mm/53 Twin · 8inch Triple Mk.9 (mod.2)
AAFD 5inch Twin DP (+ GFCS Mk.37)
Large 30.5cm Triple (Kai· 35.6cm Twin (Dazzle Camo · Kai · Kai 2· Proto 35.6cm Triple (Kai Dazzle Camo) · 38cm Twin (Kai· 38cm Quad (Kai· 381mm/50 Triple (Kai· 38.1cm Twin (/N Kai· 41cm Twin (Kai 2· 41cm Triple Kai (Proto 41cm · Kai 2· 46cm Triple (Proto 46cm · Kai)
16inch

16inch Twin (Mk.I · Mk.V · Mk.VIII Kai· 16inch Triple Mk.6 (mod.2 · + GFCS· 16inch Triple Mk.7 (+ GFCS)
16inch Mk.I Triple (+ AFCT Kai · + FCR Type 284)

Large (II) 51cm Twin (Prototype)
Secondary Gun 15cm Twin · 15.2cm Single · OTO 152mm Triple · 15.2cm Triple · 15.5cm Triple (Kai)
AA 8cm Twin HA (Kai + Add. Machine Guns· 10cm Twin HA (Carriage) · 10.5cm Twin · 12.7cm Twin HA · 5inch Single HA
AAFD 90mm Single HA · 10cm Twin HA Kai + Add. Machine Guns · 12.7cm HA + AAFD · 5inch Twin Mk.28 mod.2
Anti-Air Machine Gun 7.7mm · 12.7mm Single · 2cm Flakvierling 38 · 25mm Single (Twin · Triple· 3.7cm FlaK M42 · Bi Type 40mm Twin · 12cm 30-tube Rocket Launcher (Kai 2· 20-tube 7inch UP Rocket Launchers
C.D. 25mm Triple (Concentrated Deployment) · Bofors 40mm Quad · QF 2-pounder Octo
Fire Director Type 91 Anti-Aircraft Fire Director · Type 94 Anti-Aircraft Fire Director
Torpedo Weapon Torpedo 53cm Twin · 53cm Oxygen Bow · 533mm Triple · 533mm Quint (Initial Model · Late Model· 61cm (Triple · Quad· 61cm Oxygen (Triple (Late Model· Quad (Late Model· Quint · Proto Sext)
Sub Submarine 53cm Bow (8 tubes) · Prototype FaT Type 95 Oxygen Torpedo Kai · Late Model Bow Torpedo Mount (6 tubes) (+ Skilled Sonar Personnel· Late Model 53cm Bow Torpedo Mount (8 tubes)
Midget Sub Kouhyouteki (Type A · Type C · Type D)
Carrier-based Aircraft Fighter Type 96 Fighter (Kai· Zero (Model 21 (Skilled · Iwamoto· Model 32 (Skilled· Model 52 (Skilled · 52A Iwamoto · 52C 601 · 52C Iwai· Model 53 (Iwamoto)) · Shiden (Kai 2 · Kai 4· Reppuu (Proto Late Model · Model 11 · 601 · Kai (Prototype) · Kai 2 (CarDiv 1/Skilled)) · Shinden Kai
Foreign

German: Bf 109T Kai · Focke-Wulf (Fw 190T Kai · Fw 190 A-5 Kai)
Italian: Reggiane (Re.2001 OR Kai · Re.2005 Kai)
American: Wildcat (F4F-3 · F4F-4· Hellcat (F6F-3  · F6F-5)  · XF5U
British: Fulmar · Seafire Mk.III Kai

Night Reppuu Kai 2 Model E (CarDiv 1/Skilled· Hellcat (F6F-3N · F6F-5N)
Torpedo Bomber Type 97 (Skilled · 931 (931/Skilled· Tomonaga · Murata· Tenzan (931 · 601 · Model 12A · Model 12 Tomonaga · Model 12 Murata· Ryuusei (601 · Kai (CarDiv 1 · CarDiv 1/Skilled)) · Re.2001 G Kai · Swordfish (Mk.II · Mk.III· TBD · TBF
Night TBM-3D · Type 97 Kai Model E (Skilled· Tenzan Model 12A Kai (Skilled)
Dive Bomber Type 99 (Skilled · Egusa· Suisei (Model 12A (634 w/Cluster Bombs · w/ Photo Fuze Bombs· Model 22 (634 (634/Skilled)) · Egusa · 601· Type 0 Fighter-bomber (Model 62 (Iwai· Model 63· Prototype Nanzan · Ju 87C Kai (Kai 2 (Skilled)) · SBD · F4U-1D · FM-2 · Skua · Re.2001 CB Kai · SB2U
Recon Saiun (Eastern Caroline · 4th Recon Squad· Type 2 Recon · Prototype Keiun
Seaplane Flying Boat Type 2 Large Flying Boat · PBY-5A Catalina
Recon Type 0 Recon (Model 11B · (Skilled)) · Type 0 Observation · Shiun · Type 98 Night Recon · Ar196 Kai · Ro.43 Recon · OS2U · S9 Osprey · Swordfish Mk.II Kai (Recon) · Fairey Seafox
Bomber Zuiun (Model 12 (634)) · Kai 2 (634 (634/Skilled)) · 631 · 634 (634/Skilled)) · Seiran (Prototype Seiran · 631· Laté 298B · Swordfish (Seaplane) (Mk.III Kai (Skilled))
Fighter Ro.44 Seaplane Fighter (bis· Type 2 Seaplane Fighter Kai (Skilled· Kyoufuu Kai
Land-based Aircraft Attack Type 96 · Type 1 (Nonaka · Model 22A · Model 34· Ginga (Egusa)
Patrol Toukai (Prototype · 901)
Fighter Interceptor Raiden · Shiden (Model 11 · Model 21 (Kai (343) 301st Sq.)) · Reppuu Kai (352 Air Group/Skilled· Shuusui (Prototype)
IJA/Foreign Type 1 Fighter Hayabusa (Model II (64th Sq.· Model III A (54th Sq.)) · Type 3 Fighter Hien (244 · Model 1D· Type 4 Fighter Hayate · Spitfire (Mk.I · Mk.V · Mk.IX· Fw 190 D-9 · Me 163B
LBAA-IJA Bomb-carrying Type 1 Fighter Hayabusa Model III Kai (65th Squadron)
Recon Type 2 LB Recon (Skilled)
Jets Fighter-Bomber Jet Keiun Kai · Kikka Kai
Anti-submarine Warfare Patroller Ka Type Observation Autogyro · O Type Observation Autogyro Kai (Kai 2· S-51J (Kai· Type 3 Command Liaison Aircraft (ASW)
Depth Charge Projector Type 94 Depth Charge Projector · Type 3 Depth Charge Projector
Racks Type 95 Depth Charge · Type 2 Depth Charge
Other Type 3 Depth Charge Projector (Concentrated Deployment) · Type 2 12cm Mortar Kai (Concentrated Deployment· 15cm 9-tube ASW Rocket Launcher · RUR-4A Weapon Alpha Kai · Lightweight ASW Torpedo (Initial Test Model)
Sonar Type 93 Passive Sonar · Type 3 Active Sonar · Type 0 Passive Sonar · Type 4 Passive Sonar · ASDIC (Type124 ASDIC · Type144/147 ASDIC · HF/DF + Type144/147 ASDIC)
Shell Type 3 Shell (Kai· Type 91 Armor Piercing Shell · Type 1 Armor Piercing Shell (Kai)
Anti-Ground WG42 (Wurfgerät 42) · Type 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment)
Amphibious and Transport Landing Craft Daihatsu Landing Craft ((Type 89 Medium Tank & Landing Force)· Toku Daihatsu Landing Craft (+ 11th Tank Regiment· M4A1 DD
Tank Special Type 2 Amphibious Tank
Drum Drum Canister (Transport Use)
Material Saiun (Disassembled for Transport)
Radar Small Air Type 13 Air Radar (Kai· SG Radar (Initial Model) · GFCS Mk.37
Large Air Type 21 Air Radar (Kai· Type 42 Air Radar · 15m Duplex Rangefinder + Type 21 Radar Kai 2 · FuMO25 Radar · SK Radar (+ SG)
Small Surface Type 22 Surface Radar (Kai 4 (Calibrated Late Model)) · Type 33 Surface Radar
Large Surface Type 32 Surface Radar (Kai)
Submarine Submarine Radar (& Waterproof Telescope · & Passive Radiolocator ((E27) · Late Model))
Engine Turbine Improved Kanhon Type Turbine
Boiler Enhanced Kanhon Type Boiler · New Model High Temperature High Pressure Boiler
Bulge Anti-torpedo Bulge (Medium · Large· New Kanhon Design (Medium · Large· Pugliese Underwater Protection Bulkhead · Arctic Camouflage (+ Arctic Equipment)
Night Battle Aid Searchlight · Type 96 150cm Searchlight · Star Shell
Support Item Emergency Repair Personnel (Repair Goddess· Combat Ration ((Special Onigiri) · Canned Saury· Underway Replenishment
Personnel and Facility Fleet Command Facility (Striking Force· Ship Repair Facility · Skilled Carrier-based Aircraft Maintenance Personnel · Night Operation Aviation Personnel (+ Skilled Deckhands· Skilled Lookouts
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