All rights reserved. A short or long liner version of the supplementary charge is contained in the deep fuze cavity. Its intended replacement is the M795, manufacture of which began in 1999. DESCRIPTION: The projectile is a hollow steel shell. DESCRIPTION: The M795 projectile consists of TNT explosive loaded into a body assembly. protective lifting plug at the nose and a flexible rotating band cover which protects the rotating band during shipping and handling. It is a separate-loading projectile—propellant bags or MACS charges are loaded separately. The Army has selected the M795 projectile to eventually replace the standard M107 projectile. USE: The M795 projectile is utilized to provide conventional support fire for division/corps elements.
It is a bursting round with fragmentation and blast effects. The projectile is fitted with a
ammunition for the U.S. Army and other State Department approved customers. Although the current M795 offers extended range over the old M107 (22.5 km vs. 17.5 km), it falls short of the Army's other extended-range projectiles (28–30 km range). The M795 ballistic data resulted in a muzzle velocity of 700 m/s for the baseline projectile and the M549A1 data gave a corresponding muzzle velocity of 754 m/s. The M107 is manufactured by several nations, sometimes with variations in the fill and or filling method, or other details, and is given a national designation. USE: This projectile is fired from 155mm howitzers and is used for blast effect, fragmentation and mining. The M795 155mm projectile is the US Army and US Marine Corps' standard 155mm High Explosive (HE) projectile for howitzers. The complete projectile weighs 43.2 kg, is 800 mm long and contains 15.8% explosive by weight. The plug is removed and replaced with a fuze for firing. The M114 howitzer can fire an M107 up to 18.5 km using M4A2 "White Bag" propellant. ammunition for the U.S. Army, Marines and other State Department approved customers. The M107 was approved for use in 1958 and issued to the army from 1959. Using the production M795 HE Projectile as a baseline, designers began optimizing ballistic configurations and incorporating an improved drag reduction system, based on the successful 155mm M864 Extended Range DPICM Base Burner Projectile. For example, those produced to UK requirements are designated L21, not M107; German examples were designated DM21. United Defense developed this new system together with Bofors Defence, Rockwell Collins and BT Fuze Products. The M795 155mm projectile is the US Army and US Marine Corps' standard 155mm High Explosive (HE) projectile for howitzers. It is a bursting round with fragmentation and blast effects. M795 Projectile 155mm High Explosive HE This program is an effort to support the Program Executive Office for Field Artillery Systems to begin production of the M795 projectile. The M795 projectile provides an increased effectiveness against major ground force threats at greater ranges for anti-personnel and anti-materiel targets when compared to the old M107 projectile. However, the M107 was retained for training purposes, because it was cheap and, being less lethal, had a smaller peacetime safety area, an important consideration given the small European training areas. A welded band replaces the swaged rotating band of the M107, allowing the M795 to be fired with M119 or M203 propelling charges, increasing range by 6,000 meters. The M107 can be fired more than 13 miles and on detonation it produces approximately 1,950 fragments. The M107 155mm projectile was the standard 155mm high explosive (HE) projectile for howitzers of the US Army and US Marine Corps. The M107 is a development of the M102 155 mm shell that was developed in the 1930s from the French Schneider 155 mm projectile for the Model 1917 Howitzer.
List of crew served weapons of the US Armed Forces, https://en.wikipedia.org/w/index.php?title=M107_projectile&oldid=973747219, Creative Commons Attribution-ShareAlike License, Explosive content: TNT 6.86 kilograms (15.1 lb), PD M51A5, M728 family, M557, M572, M739, M564, M577, M582, M732, Manufacturer: American Ordnance LLC & Scranton Army Ammunition Plant, This page was last edited on 19 August 2020, at 00:42. Ready M795 rounds with fuzes fitted for M777 howitzer. The CCF is GPS-based so as to provide high accuracy. Projectile Assembly; Pallet (Alternate) Packing and Marking for 155MM Projectile Pallet; Cavitation (see 3.3. A gilding metal rotating band encircles the high fragmentation steel HF-1 body near its base.
The M795 is a 155mm, High Explosive (HE), Projectile Body made from high fragmentation steel alloy, HF-1, has a finished weight of approximately 75 lbs, is approximately 30 … An extended-range version of the M795 projectile is desirable. The M795 is designed to …
A bursting round with fragmentation and blast effects, the M107 is being superseded in the US military by the M795 Development. PROJECTILE M795. A bursting round with fragmentation and blast effects, the M107 is being superseded in the US military by the M795. USE: The M795 projectile is utilized to provide conventional support fire for division/corps elements. American Ordnance LLC, operator of the Iowa Army Ammunition Plant, produces the projectile 155mm High Explosive ammunition for the U.S. Army, Marines and other State Department approved customers. Extending the range of the M795 HE projectile provides the ability to engage at an even greater distances and provides for a munitions which is compatible with current and developmental delivery systems and their associated propellants. An eyebolt lifting plug is screwed into the fuze well to assist in transportation.
By the 1970s, the M107 was an out-of-date design, and some European armies started replacing their war stocks with modern designs such as L15. The powder is retained in the case by a fiberglass closing
Except 3.32) Metal Parts Defects; Determination of Projectile Cavitation; Check of Sensitivity of Radiographic Technique; Check of Photographic Density of Film; Figure 2. at the nose of the projectile for handling and storage. Two different projectiles were used. The shape is ogival with a boat-tail for aerodynamic efficiency.
DOD 5000.2- R requires that munitions and weapons can withstand a certain unplanned stimuli criteria. The currently approved M795 Operational Requirement Document (ORD) establishes the need for an extended-range version of the M795 to support anticipated warfighting scenarios. The body consists of a hollow steel shell containing high explosive (either TNT or Composition B) painted olive drab with yellow markings. W/ SUPPL CHG [lot number] g. Zone weight markings - squares with prick-punches around the mouth of the projectile - match zone weight recorded on ADC.
It can be employed on all types of U.S. 155mm and 105mm projectiles in the U.S. Field Artillery inventory. Modified M107 rounds with base bleed and new aerodynamics can extend this range to around 32 km. As the Army's M864 Base Burner Assembly development and production source, Talley delivered nearly one million production base burner assemblies.
A steel plate is welded over the base to prevent entry of hot propellant gases into the projectile interior. DESCRIPTION: The blank cartridge consists of a shortened cartridge case containing a black powder charge and primer. M795 155mm - High Explosive. charge contained by the cartridge case with a press fit percussion primer. The development of the M795 IM projectile, a 155mm artillery round is an exceptional engineering achievement that addresses the Insensitive Munitions (IM) compliance of munitions items IAW DOD 5000.2 -R to improve the warfighter survivability. The US Army has identified a need to provide extended-range 155mm HE projectiles for both current and future artillery systems. A rotating band encircles the shell casing near the base and is protected by a grommet before loading. The shortened cartridge case is either brass, steel, or aluminum.
The projectile is packaged on a metal pallet with a shock-attenuating lifting plug and flexible rotating band cover. The M107 155mm projectile was the standard 155mm high explosive (HE) projectile for howitzers of the US Army and US Marine Corps. The high-fragmentation steel body is encircled by a gilding metal rotating band, making it compatible with 3W through 8S (M3A1 through M203A1) zone propelling charges across all current 155mm howitzers. In mid-2005, United Defense demonstrated a cost-effective system to improve cannon artillery accuracy with the successful firing of inert M795 155mm projectiles equipped with a two-directional Course Correcting Fuze (CCF). The M795 projectile is ballistically similar to the M483A1 family of cargo projectiles and may be used as a registration round for the M483A1 family. United Defense successfully fired M795 rounds equipped with the CCF from an M109A6 Palladin to ranges of 14.5 kilometers at Yuma Proving Ground. American Ordnance LLC, operator of the Iowa Army Ammunition Plant, produces the projectile 155mm High Explosive
Designated the M795E1, this projectile will provide a significantly larger HE, high fragmentation warhead and improved lethality over the aging M549A1 HE Rocket Assisted Projectile, and will maintain an extended range capability to counter the longer range artillery threat of potential adversaries. wad and a polystyrene closing cup glued in place with epoxy. Leveraging advanced ballistic design technology from two key stockpile projectiles, the 155mm M795E1 Extended Range HE Base Burner Projectile will extend maximum range capability for the delivery of enhanced HE payload. Its limited effectiveness also make it a useful option in peace support operations.
The maximum range when fired from a Crusader type system (52 caliber tube) would be 34 km (threshold) to 36 km (objective). The M795 is a 155mm high-fragmentation, steel (HF1)-body projectile filled with 10.8 kilograms (23.8 lb) of TNT and weighing approximately 47 kilograms (103 lb). i. Shock-attenuating lifting plug cannot be removed. The M107 differs from the M102 mainly in having a wider rotating or driving band. The M795 is designed to be a more lethal, longer range version of the M107. © 2018 American Ordnance LLC. Despite relatively lackluster performance (Jane's describes it as having "an indifferent charge to weight ratio", "unsophisticated aerodynamic shape", "erratic fragmentation") compared to more modern high explosive rounds, it continues to be used by many countries, in particular in training exercises because of its low cost, high availability and smaller danger area than more modern designs.
A threaded lifting plug closes the fuze cavity
When fired from the M198 155mm towed howitzer (39 caliber tube) with the M203A1 propelling charge, the maximum range would be between 26.5 km (threshold) and 28.5 km (objective). The explosive payload was also improved, as was the fragmentation pattern, giving 30% higher lethality.[1]. The obturator is plastic. Preliminary analysis from the demonstration confirmed United Defense's laboratory analysis and the projectiles equipped with the CCF achieved a precision error of less than 50 meters - three times more accurate than the control rounds.
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