Name: Projectile, 8 in: HE, M106
Availability: InStock

Item Type

Item State

Type

Action

Guidance

Weights projectile

Weights explosive

Charges 1 to 5, M1

Charges 5 to 7, M2

Lengths fuzed

Lengths without lifting plug

Lengths with lifting plug

Max body diameter

Diameter over drive band

M110

M110A2

Eastern Asia

South Korea

Southern Asia

Iran

Pakistan

Western Asia

Turkey

Southern Europe

Greece

Italy

Portugal

Western Europe

Belgium

<h2>Armament</h2><p>M2 and M2A1 Cannon used on M115 Towed Howitzer; M2A2 Cannon used on M110 Self-propelled Howitzer; M201A1 Cannon used on M110A2 Self-propelled Howitzer; NORINCO 203 mm Gun System.</p><h2>Development</h2><p>The 8 in HE M106 was originally developed during the 1930s for use with the 8 in (203 mm) M1 Towed Howitzer, replacing an earlier projectile with coastal defence gun origins known as the Mk 1A1. The 8 in M1 howitzer was later redesignated the M115 and, although this weapon is no longer in the US armed forces inventory it remains in service with other nations. A similar barrel to that mounted on the M115 was later selected as the M2A2 Cannon for use on the 8 in M110 Self-propelled Howitzer. The M110 has been updated by retrofitting the longer barrelled muzzle-braked M201A1 Cannon to create the 8 in M110A2 Self-propelled Howitzer standard. The 8 in HE M106 is used with all these weapons and it is still widely produced although, as the M110 series have been withdrawn from US Army service, it is no longer manufactured within the USA. It remains the most commonly used projectile for all NATO 8 in/203 mm howitzers. Known users of M110 series self-propelled howitzers include the following: Bahrain (13 M110A2); Greece (31 M110); Iran (38, some destroyed); Israel (48 M110); Italy (23 M110A2 - due to be replaced by MLRS ); Japan (201 M110A2); Jordan (102 M110A2); South Korea (99 M110); Pakistan (40 M110A2); Spain (48 M110A2); Taiwan (M110A2, estimated numbers between 75 and 150); Turkey (80 M110A2). The Projectile, 8 in: HE XM711 was under development to replace the HE M106 but development was terminated. No details are available. An 8 in chemical agent projectile which used the same external configuration as the 8 in HE M106 was known as the 8 in Projectile, Gas/GB/VX, M426. This projectile contained 6.58 kg of persistent nerve agent scattered by a 3.175 kg M83 Composition B-4 burster charge. Weight of the complete projectile was 90.26 kg and length 891.5 mm. Also produced were the generally similar 8 in Projectile Gas VX, M426, and the 8 in Projectile Gas VX2, M736. Any remaining examples of these projectiles have been withdrawn from service and are scheduled for destruction.</p><h2>Description</h2><p>The 8 in/203 mm HE M106 separate loading projectile uses a hollow steel forging with a streamlined ogive, a boat tailed base and a base cover welded to the base. A welded copper overlay drive band is normally protected by a metal, plastic or glass fibre grommet which is removed before firing. The nose of the projectile is fitted with an eyebolt lifting plug for storage, transport and handling and covers a shallow or deep cavity drilled into the bursting charge. Deep cavity projectiles are intended for use with deep intrusion proximity and other fuzes and when used a supplementary charge has to be removed. The supplementary charge, 136 g of TNT, is normally held in place beneath the lifting plug by a cardboard spacer. Loaded projectiles are zoned into one of five weight zones ranging from 86.82 kg (zone 2) to 92.67 kg (zone 6). The appropriate weight zone is marked on the ogive of each projectile by a system of painted squares and punch marks. The explosive filling of the 8 in HE M106 may be either 16.465 kg of TNT or 17.6 kg of Composition B. M2, M2A1 and M2A2 Cannon use a system of seven bagged charges. Charges 1 to 4 all use M1 green bag charges. Charge 5 may be either an M1 green bag or a M2 white bag. Charges 6 and 7 use M2 white bag charges. Charges 1 to 5 (M1) consist of 6.8 kg of single perforated M1 propellant. Charge 1 is the base section with the other four charges in unequal increments. They are assembled end-to-end in sequence and held together by four cloth straps. A red igniter pad containing 142 g of black powder is sewn to the base of the base charge, Charge 1. The complete charge is 533 mm long and 165 mm in diameter. Charges 5 to 7 (M2) consist of 12.927 kg of multi-perforated M1 propellant. Charge 5 is the base charge with two unequal increments (Charges 6 and 7) attached. The charges are assembled end-to-end in sequence and held together by four cloth straps. A red igniter pad containing 142 g of black powder is sewn to the base of the base charge Charge 5. A Flash Reducer M3 containing 453 g of a potassium sulphate and black powder mixture is added when the full Charge 7 is fired. The complete charge is 609 mm long and 197 mm in diameter. The longer 8 in M201A1 Cannon makes use of the same system of bagged charges as the M2, M2A1 and M2A2 but with the addition of the M118 or M118A1 bag charges to enhance performance. The M118, originally developed for the M201 Cannon (without a muzzle brake), is a single-increment white bag charge containing approximately 17.24 kg of high-energy M30A1 propellant in a cloth bag. A red igniter pad containing 142 g of black powder is sewn to the base of the charge and a central ignition core extends throughout the length of the charge. A cylindrical cloth jacket is placed over the entire length and tightly laced. The M118 is approximately 787 mm long and 203 mm in diameter. The M118A1 was developed for use in the M201A1 Cannon used on the M110A2 Self-propelled Howitzer. It is a two increment charge (Charges 8 and 9) containing 21.77 kg of high-energy M31A1 propellant. A red igniter pad containing 142 g of black powder (normally covered by a paper cap which has to be removed before firing), is sewn to the base of the charge and a central ignition core extends through most of the length of the charge. This core is a moulded nitrocellulose 355 mm diameter tube, containing a 142 g bag of black powder sewn to the igniter pad. An additive to reduce barrel wear is used to line the increment 9 charge bag. The increment 8 bag is lined with lead foil for decoppering and the bag is laced inside a cloth jacket. The Charge 9 increment is attached to the Charge 8 increment by four tie straps. The entire M118A1 charge weighs 22.7 kg, is 813 mm long and 203 mm in diameter. The Charge 8 increment weighs 19.05 kg and the Charge 9 2.72 kg. The percussion primer used with the M2 and M2A1 Cannon is the MK2A4. Other Cannon use either the M82 or the MK15. When the 8 in HE M106 is fired from M2, M2A1 and M2A2 Cannon the following results can be obtained: Charge 1 (M1 green bag) - MV 249.9 m/s - range  5,600 m Charge 2 (M1 green bag) - MV 274.3 m/s - range  6,600 m Charge 3 (M1 green bag) - MV 305 m/s - range  8,000 m Charge 4 (M1 green bag) - MV 350.5 m/s - range  9,700 m Charge 5 (M1 green bag) - MV 420.6 m/s - range  11,600 m Charge 5 (M2 white bag) - MV 420.6 m/s - range  11,600 m Charge 6 (M2 white bag) - MV 500 m/s - range  13,900 m Charge 7 (M2 white bag) - MV 594.3 m/s - range 16,800 m. When fired from the M201A1 Cannon the 8 in HE M106 can produce the following results: Charge 1 (M1 green bag) - MV 255.4 m/s - range  5,946 m Charge 2 (M1 green bag) - MV 280.4 m/s - range  7,099 m Charge 3 (M1 green bag) - MV 309.6 m/s - range  8,450 m Charge 4 (M1 green bag) - MV 353.8 m/s - range  10,435 m Charge 5 (M1 green bag) - MV 423.6 m/s - range  12,405 m Charge 5 (M2 white bag) - MV 445.9 m/s - range  12,987 m Charge 6 (M2 white bag) - MV 519.7 m/s - range  15,203 m Charge 7 (M2 white bag) - MV 606.9 m/s - range  17,901 m Charge 8 (M118) - MV 710.1 m/s - range 21,300 m. For training in handling the 8 in HE M106 the Projectile, 8 in: Dummy, M845 is used. This is an inert projectile that cannot be fired. It is fitted with an inert M51 nose fuze and a plastic drive band.</p><h2>Authorised fuzes</h2><p>Shallow cavity: PD M577, M51A5, M572, M739. MTSQ M564, M582, Prox M732 Deep cavity: PD M51A5, M577, M572, M739. MTSQ M564, M582. Prox M732, M728 (Supplementary charge must be removed before Prox M728 is used) Equivalent projectiles BELGIUM</p><p>BELGIUM</p><h2>Manufacturer</h2><p>PRB SA</p><p>Type: 203 mm HE NR-152</p><p>Description: Stated to be equivalent to 8 in HE M106 . No longer in production but in widespread</p><p>service</p><p>GREECE</p><h2>Manufacturer</h2><p>Hellenic Arms Industry (EBO)</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><h2>Manufacturer</h2><p>PYRKAL: Greek Powder & Cartridge Company</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><p>IRAN</p><h2>Manufacturer</h2><p>Defence Industries Organisation, Ammunition Industries</p><p>Type: 203 mm HE</p><p>Description: Based on US 8 in HE M106 . Weight given as 73.03 kg, of which 16 kg is HE filling.</p><p>Length 797.56 mm. Muzzle velocity given as 594.4 m/s and maximum range 16,800 m</p><p>ITALY</p><h2>Manufacturer</h2><p>Simmel Difesa SpA</p><p>Type: 203 mm HE</p><p>Description: Standard US specifications, filled with TNT. Charges also produced</p><p>KOREA, SOUTH</p><h2>Manufacturer</h2><p>Daewoo Corporation</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><h2>Manufacturer</h2><p>Korea Explosives Company</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><h2>Manufacturer</h2><p>Poongsan Corporation</p><p>Type: 8 in HE M106 Description: Standard US specifications NETHERLANDS</p><h2>Manufacturer</h2><p>Eurometaal NV</p><p>Type: 203 mm HE</p><p>Description: Available. Stated to be equivalent to 8 in HE M106 . M1 and M2 charges also produced</p><p>PAKISTAN</p><h2>Manufacturer</h2><p>Pakistan Ordnance Factories</p><p>Type: 8 in HE How M106</p><p>Description: Filled with 16.5 kg TNT. Otherwise standard specifications.</p><p>PORTUGAL</p><h2>Manufacturer</h2><p>Explosivos Da Trafaria SA</p><p>Type: 8 in HE M106 Description: Standard US specifications SPAIN</p><h2>Manufacturer</h2><p>EXPAL SA</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><h2>Manufacturer</h2><p>FOREX SA</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><p>TAIWAN</p><h2>Manufacturer</h2><p>Hsing Hua Company</p><p>Type: 8 in HE M106 Description: Standard US specifications</p><p>TURKEY</p><h2>Manufacturer</h2><p>Makina ve Kimya Endüstrisi Kurumu ( MKEK )</p><p>Type: 8 in HE M106 Description: Standard US specifications. Filled with TNT. Charges also produced</p>

The 8 in/203 mm HE M106 separate loading projectile uses a hollow steel forging with a streamlined ogive, a boat tailed base and a base cover welded to the base. A welded copper overlay drive band is normally protected by a metal, plastic or glass fibre grommet which is removed before firing. The nose of the projectile is fitted with an eyebolt lifting plug for storage, transport and handling and covers a shallow or deep cavity drilled into the bursting charge. Deep cavity projectiles are intended for use with deep intrusion proximity and other fuzes and when used a supplementary charge has to be removed. The supplementary charge, 136 g of TNT, is normally held in place beneath the lifting plug by a cardboard spacer. Loaded projectiles are zoned into one of five weight zones ranging from 86.82 kg (zone 2) to 92.67 kg (zone 6). The appropriate weight zone is marked on the ogive of each projectile by a system of painted squares and punch marks. The explosive filling of the 8 in HE M106 may be either 16.465 kg of TNT or 17.6 kg of Composition B. M2, M2A1 and M2A2 Cannon use a system of seven bagged charges. Charges 1 to 4 all use M1 green bag charges. Charge 5 may be either an M1 green bag or a M2 white bag.

The complete charge is 609 mm long and 197 mm in diameter. The longer 8 in M201A1 Cannon makes use of the same system of bagged charges as the M2, M2A1 and M2A2 but with the addition of the M118 or M118A1 bag charges to enhance performance. The M118, originally developed for the M201 Cannon (without a muzzle brake), is a single-increment white bag charge containing approximately 17.24 kg of high-energy M30A1 propellant in a cloth bag. A red igniter pad containing 142 g of black powder is sewn to the base of the charge and a central ignition core extends throughout the length of the charge. A cylindrical cloth jacket is placed over the entire length and tightly laced. The M118 is approximately 787 mm long and 203 mm in diameter. The M118A1 was developed for use in the M201A1 Cannon used on the M110A2 Self-propelled Howitzer. It is a two increment charge (Charges 8 and 9) containing 21.77 kg of high-energy M31A1 propellant.

In over a hundred years of continued operation, Simmel Difesa acquired comprehensive knowledge and expertise in the ammunition business, combining the experience of famous European players into a modern and agile company.
Today, Simmel Difesa supplies medium and large calibre ammunition to more than 40 countries worldwide.
Over the time, the company developed its know-how in all ammunition components, from propellants and explosives to metal parts and fuses. Thanks to its experience, Simmel Difesa is able to optimize the components’ integration in order to conceive first-class products.
Simmel Difesa gained a reputation as a leader in naval ammunition, and is now – after decades of successful cooperation – the preferred supplier for Oto-Melara guns. Its in-house capability to design and manufacture advanced proximity fuses led Simmel Difesa to become a world leader on the air defense ammunition market.
Equipped with a powerful and flexible manufacturing infrastructure, and benefitting from the dedication of its highly skilled workforce and a dependable supply chain, Simmel Difesa is able to quickly respond to its customers’ requirements with reliable and high-performance products.

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Projectile, 8 in: HE, M106

Projectile, 8 in: HE, M106

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