155mm_T7

155 mm gun T7

155 mm gun T7

Tank gun

The 155mm L/40 T7 was an American rifled tank gun developed in 1945.[1] The T7 was to be the main armament for the T30 Heavy Tank, but only a handful were produced due to the T30 project being cancelled after trials in the late 1940s.

Quick Facts 155mm L/40 T7, Type ...

The T7 used two-part separated ammunition like the 105mm T5E1 gun on the T29 Heavy Tank.[2] It had a low velocity of only 701 m/s (2,300 ft/s) compared to the 120mm T53 on the T34 Heavy Tank (945 m/s) and the 105mm T5E1 on the T29 Heavy Tank (945 m/s).[3] However, the 43 kg (95 lbs) High-Explosive shell (HE) and high-velocity armour-piercing (HVAP) was demonstrated to have a powerful demolition effect. Testing concluded before completion when the T30 project was cancelled in the late 1940s.

Penetration comparison

More information Ammunition type, Muzzle velocity ...

Variants

  • T7 - Standard model
  • T7E1 - T7 modified for use with a power rammer and ejection equipment.

References

  1. [1]
    Hunnicutt, Richard P. (1988). Firepower: A History of the American Heavy Tank. Brattleboro, Vermont: Echo Point Books & Media. p. 228. ISBN 978-0891413042.
  2. [2]
    Hunnicutt, Richard P. (1988). Firepower: A History of the American Heavy Tank. Brattleboro, Vermont: Echo Point Books & Media. p. 88. ISBN 978-0891413042.
  3. [3]
    Hunnicutt, Richard P. (1988). Firepower: A History of the American Heavy Tank. Brattleboro, Vermont: Echo Point Books & Media. pp. 224–5. ISBN 978-0891413042.
  4. [4]
    Bird, Lorrin Rexford; Livingston, Robert D. (2001). WWII Ballistics: Armor and Gunnery. Overmatch Press. p. 61.
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