Typical HE-T High-Explosive-Tracer Projectile

This type of projectile has been used in the following fixed ammunition 37-mm HE-T, SD M54 M54A1 for Automatic Guns (Ref 52, pp 2-7 to 2-9) 40-mm HE-T, SD MK11, 

Typical HE Projectile with Supplementary Charge, shown in Fig 1-3, has been used in one of the separated rounds, the 120-mm HE, M73 w/Suppl Chge for Gun Cannons (Ref 52, p 2-75) and in several separateloading rounds, which are described below  

Similar in appearance and in function are 155-mm HE, Ml07 Projectile w/Suppl Chge for use in howitzer cannons (Ref 52, pp 2-130 2-131) and 8-inch HE, M106 Projectile w/Suppl Chge for use in howitzer cannons (Ref 52, p 2-144) 

More streamlined in appearance are 175 mm and 280-mm projectiles, shown here in Figs l-4a and l-5a, respectively 

175-mm HE Projectile M437A2 w/Suppl Charge, used for fragmentation, blast or mining, is more streamlined in appearance than 155-mm and 8-inch projectiles. Its cutaway view is given in Fig 4a and its 

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