Projectile, 8 in: HE, M106

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.