CARTRIDGE, 90 MILLIMETER HE-T, M71A1, AND HE, M71
No Image Available Filler and Weight
Composition B,
Body and Overall Weight
Steel, 38.8-39.54 lb
Color
Olive drab w/yellow marking
Type of Round, DODIC
HE-T, 1315-C280
Description:
The hollow steel forged projectile has a boat-tailed base and a streamlined ogive. Fuze cavity may be a normal or a deep cavity type. The projectile is loaded with 2.15 pounds (1.68 lb, deep cavity) of Composition B or TNT. A tracer is threaded into the projectile base (M71A1). A point-detonating fuze is assembled to the projectile. Loaded projectile weights fall into one of three weight zones. M71A1 has a tracer; M71 does not. M71A1 has M1 propellant resulting in lower velocity; M71 has M6 or M15 propellant.
Use:
This cartridge is used in 90mm guns against personnel and materiel, producing blast and fragmentation at the target.
Functioning:
When the weapon is fired, the burning propellant ignites the tracer and creates gases which propel the projectile out of the gun tube. The tracer burns for a minimum of three seconds. Upon impact, the fuze functions on superquick or delay, as preset, and detonates the high-explosive filler producing Mast and fragmentation.
Munition Components:
  • Cartridge case M19, M19B1
  • Propelling charge M1 5.33 lb, M6 or M15, 7.31 lb
  • Tracer XM10 (M71A1)
  • Fuze PD, M51A5, M557, MTSQ, M520 Series, M564
  • Cartridge case M19, M19B1
  • Propelling charge M1 5.33 lb, M6 or M15, 7.31 lb
  • Tracer XM10 (M71A1)
  • Fuze PD, M51A5, M557, MTSQ, M520 Series, M564
  • Cartridge case M19, M19B1
  • Propelling charge M1 5.33 lb, M6 or M15, 7.31 lb
  • Tracer XM10 (M71A1)
  • Fuze PD, M51A5, M557, MTSQ, M520 Series, M564
Data Source:
TM 43-0001-28 April 1977
Munitions Tech Data Sheet:
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