[11] This is also different from some artillery field guns: (1) The projectile is hand rammed into the chamber with a ramrod until its rotating band is seated in the bore's rifling. ^ Most surviving 5,500 ton cruisers lost two of their stern 14 cm/50 (5.5") Type 3 guns in 1942-43 in order to fit a twin 12.7 cm/40 (5") mounting and additional 25 mm AA guns. It was backfitted to many of the World War I-era battleships during their wartime refits, usually replacing 5"/25 guns that were fitted in the 1930s. [25] When rammed in the chamber with the projectile, the Full and Reduced charge cases are designed to completely fill the volume of the chamber from the breechblock face to the base of the projectile when its rotating band is jammed into the bore's rifling. Barrel connected to the housing with a bayonet joint that allowed for its replacement by. It was intended that this gun would be a replacement for the 12 cm (4.7") 10th Year Type used on escort vessels. The Mark 42 5"/54 caliber gun (127mm) is a naval gun (naval artillery) mount used by the United States Navy and other countries. The 38 caliber barrel was a mid-length compromise between the previous United States standard 5"/51 low-angle gun and 5"/25 anti-aircraft gun. PomPom02 lwo: $99. This is because it looked like a small, leather-covered garden spade—and it was what rammed the round into the chamber. OR. It’s primarily advertised to turkey hunters, and it’s best for open-field hunting where shot distance can be hard to estimate. $5. For instance, 5"/38 MK 21 is a single-barrel open pedestal mount widely used on amphibious ships, auxiliaries, and merchant ships. All sat on a base ring stand, and had an ammunition handling room, called the Upper Handling Room, below the mount. There were two modes of mount operation that the crew was trained and expected to know. As a result, she was reduced to three 5" (12.7 cm) guns in order to allow for additional light AA guns. The Rammer Control is pushed to the up position by a cam on top of the rearward moving Housing. American bombing raids, however, avoided Kugayama after the incident and as a result the guns had no subsequent chance to fire.[4][5]. Graph showing the engagement envelope of the 15 cm gun compared with other Japanese anti-aircraft guns. A medium penetrating shell with a mechanical time fuze and a base detonating fuze. However, they had no chance to fire after that, because B-29 avoided to fly over Kugayama. Both weapons had power ramming, which enabled rapid fire at high angles against aircraft. The weight of the entire system was about 17,962.2 kg and the maximum range was 20,500 meters. Light cruiser Isuzu was further modified by converting her to an anti-aircraft cruiser in 1944. Sakura Empire AA Gun. Ultimately, it became the "rammer spade" as shown in the rammer tray illustration. By “reverse engineering” as close copy was designed and went into production in 1943. Japanese Artillery; Weapons and Tactics, Articles containing Japanese-language text, Articles incorporating text from Wikipedia, https://military.wikia.org/wiki/Type_5_15_cm_AA_Gun?oldid=2302787. The 5"/38 MK 30 is a single enclosed base ring mount widely used on destroyer escorts. [20], The Fuse detonates the projectile to cause maximum damage to the target. It is loaded from the left side. Variations to the basic design are called Modifications (or its abbreviation Mod). As the spade moves forward, it pushes the projectile and powder case into the chamber. Firing tests of these guns were conducted at Yokosuka Naval Arsenalin 1935. Even this advanced system required nearly 1000 rounds of ammunition expenditure per aircraft kill. Millions of rounds of ammunition were produced for these guns, with over 720,000 rounds still remaining in Navy storage depots in the mid-1980s because of the large number of Reserve Fleet ships with 5"/38 cal guns on board. The safety requirements of a fuze are that... [5]:33. It is used to confuse enemy radar. Two powered, fuze setting, projectile hoists. CriticalPast 1,609,293 views Originally designed for use on ships, the Type 89 was also placed in … (3) The powder bags are then rammed in. This gun uses semi-fixed ammunition. 45 groove rifling with a full uniform right hand twist in 30 Calibers (150 inches (380 centimetres)). The powder case is a brass or steel alloy cylinder closed at one end. Note: This category should be empty. IJA captured some M29 guns during Second-Sino Japanese War. The gun was installed into Single Purpose[1] and dual purpose mounts used primarily by the US Navy. ), smokeless or flashless (used at night) powder, "United States of America 5"/38 (12.7 cm) Mark 12", "United States of America 5"/38 (127 mm) Mark 12", "Definitions and Information about Naval Guns: Part 2 – Ammunition, Fuzes, Projectiles and Propellants", Detailed description and history 5"/38 including ammunition and Mark data, Illustrated descriptions of MK 30 & MK 38, list of ammunition for all Marks, Illustrated Operating Instructions for MK XXI model, Naval Ordnance and Gunnery, 1957 Volume 1 Naval Ordnance NavPers 10797-A, https://en.wikipedia.org/w/index.php?title=5%22/38_caliber_gun&oldid=992602541, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Mk 12 Gun Assembly: 3,990 lb (1,810 kg). Pulls the projectile out of the waist high projectile hoist. [3], At the "LOAD" command, or if the mount is executing "RAPID" loading: (NOTE: Rapid loading means that, when the gun fires, the gun crew immediately reloads the gun without command until "CEASE FIRE" or "CHECK FIRE" is given. However, except for the barrel length and the use of semi-fixed ammunition, the 5"/38 gun was derived from the 5"/25 gun. In 1935 the Imperial Japanese Navy decided to replace the earlier 40 mm Vickers "pom-pom" guns with a 25 mm Hotchkiss design. Flyhawk FH700041 1/700 WWII USN 20mm Oerlikon Machine Gun. It was originally designed as a naval gun that was to be mounted on I.J.N. Design. When the fuze fires, a small black powder charge expels the flare and parachute out the back. [5], The body is basically a machined steel tube with an ogive shape at one end. $9.98 + $3.50 shipping . The opened valves port high pressure hydraulic fluid to the. Depending on the mount, a 5"/38 caliber gun could have a crew of 15 to 27 personnel in the gun room and upper handling room. This weapon was used on almost every major USA and UK warship of World War II and was a very potent AA gun. Navweaps. Slips the "Butterfly" primer protector off the base of the powder case that is sticking knee high out of powder hoist on the deck. The Type 88 number was designated for the year the gun was accepted, 2588 in the Japanese imperial year calendar, or 1928 in the Gregorian calendar. The Type 4 75 mm AA gun had a single piece gun barrel with sliding breech, mounted on a central pedestal. These two guns were deployed to Kugayama, Suginami ward in the outskirts of Tokyo. [3] The Mark 12 Gun Assembly was introduced in 1934, where it was first used in single pedestal mounts on the Farragut-class destroyers,[9] but by the time of World War II they had been installed in single and twin mounts on nearly every major warship and auxiliary in the US fleet. A thin walled shell with a mechanical time fuze. There are several models of the 5"/38, differentiated by the word Mark (or its abbreviation MK) and a number. Designed to be used on either aircraft or lightly armored ships. Packed inside is a flare attached to a parachute. Image not available. This category is located at Category:Type 5 15cm AA Gun. [3] See also the 8"/55 caliber Mark 71 gun. It forms a gas seal between the projectile and the bore. On Betio the Japanese had emplaced four of these guns. blend Sale. [2], Coming into service at the end of the war, the two Type 5s completed were retained on the home islands as part of the bolstering of Japan's defenses against Allied air raids and against the perceived threat of Allied invasion. Comments Required. A thick walled penetrating projectile with a base detonating fuze. Mounts varied from 29,260 lb (13,270 kg) to 170,653 lb (77,407 kg), 190 in (4.83 m) bore, 157.2 in (3.99 m) rifling, Some 1930s built combatants, auxiliaries, merchant ships, Destroyers, auxiliaries, USCG high endurance cutters, Destroyer escorts with the upper rear edge of the Mark 38 blast shield beveled to clear, A high capacity fragmenting shell with a nose mechanical time fuze. The Military Press (1884) ISBN 0-517-42313-8. When the powder case clears the top of the breech block, the block automatically rises. But if the fire control system was damaged, or if the ship's power was out; the mount could continue the action in "local control". Verifies that the powder case is in the rammer tray. was a large caliber anti-aircraft gun developed by the Imperial Japanese Army during the final days of World War II. On these 5" mounts, single purpose (SP) means that the mount is limited to 35° elevation with no provision for AA shell fuze setters, and is designed to fire at surface targets only. (2) The ramrod is retracted. 1/700 Five Star Models IJN 8cm/40 3rd Year Type AA Gun (4 set) Rating Required. #battlefield #pacific #iwo-jima #aa-gun. A high capacity fragmenting shell with a VT (proximity) fuze. In a single engagement on 1 August 1945 they brought down two B-29 Superfortress bombers. [3], The major Mk12 Gun Assembly characteristics are:[5]:158[3]. Mayer, S.L. Free shipping . The Type 5 15cm is the largest anti-aircraft gun ever deployed in combat. Coming into service at the end of the war, the two Type 5s completed were retained … ... it remains unarmed in the bore, and until the projectile is well clear of the firing ship to protect exposed personnel. An emergency project was initiated in December 1943 to address this issue. Two guns of Type 5 were deployed at Kugayama in the suburbs of Tokyo in August, 1945, just before the end of WWII. For example, each of the nine 8"(203 mm)/55 caliber Rapid-Fire guns installed on the Des Moines-class cruiser used auto-loaded semi-fixed ammunition and had a firing rate of 10 to 12 rounds a minute. One exception to this was on ships with a Marine Detachment, where the Marines manned one of the mounts, usually decorated with the Marine emblem (see the USMC emblem on USS New Jersey's Mk 28, Mod 2 mount picture above). Some older ships were rearmed with these guns during the war. Type 5 is the biggest AA gun that the Japanese has developed. The spade's time of travel, from the rear of the tray to the breech, is one second. It consisted of the Mark 18 gun and Mark 42 gun mount. The Mark 12 5"/38 caliber gun was a United States naval gun. Its anti-aircraft fire capabilities can now be relied on. USA Twin 20mm/70 AA Cannon blend: $30. $99. Flyhawk FH700131 1/700 WWII German Naval 2cm C/30 AA MG. $8.99. This is an interesting load that mixes #5, 6, and 7 shot into one shell. The charge is held packed around the primer by a wad, distance piece (not in clearing charge), and plug. The comparatively high rate of fire for a gun of its caliber earned it an enviable reputation, particularly as an anti-aircraft weapon, in which role it was commonly employed by United States Navy vessels. The powder case completely fills the volume of the chamber, and its length seats the projectile's rotating band into the bore's rifling. : It will not arm if dropped, rolled, or shaken.). Also, as the projectile travels down the barrel, the band grips the rifling to impart spin to the projectile. In US service, most gun crews were US Navy personnel. 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