Shipborne Model Type 4 20cm Anti-ground Rocket Launcher

[Edit] Shipborne Model Type 4 20cm Anti-ground Rocket Launcher No.348 艦載型 四式20cm対地噴進砲
Anti-Ground Equipment Effects: -2 Scrap value: 1 3 1 1 (Unbuildable)
Card Fairy Equipment Combination
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

Equipment that consume Shipborne Model Type 4 20cm Anti-ground Rocket Launcher during improvement

• June 2019 Ranking reward for all tiers.
• Summer 2019 Event E-1 Hard, E-2 Easy/Medium/Hard reward.
• Fall 2019 Event E-1 Easy/Medium/Hard reward.
• Quest B139 offers this as a choice between two rewards.

Improvement

Shipborne Model Type 4 20cm Anti-ground Rocket Launcher[Edit]

Improvement Cost: 20 120 30 10	★			S	M	T	W	T	F	S	Helper Ship
Consumes: 1x Drum 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 12cm 30-tube Rocket Launcher	6	5/8	4/6
Consumes: 2x New Model Rocket Development Material 1x Shipborne Model Type 4 20cm Anti-ground Rocket Launcher Produces: 1x Type 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