High Explosive Squash Head
A type of projectile developed by Dennis Burney in WW2 as a "wall buster" for use against concrete pillboxes and the like. The HESH projectile is usually a very thin-walled shell filled with plastic high explosive.
The shell is fired at the wall, where the explosive spreads out like a cow pat onto the surface. The explosive then detonates, creating extreme stresses in the wall which cause a scab to fly off the far side causing grief for anyone in the room.
- 76mm as used on Scorpion
- 105mm Light Gun
- 105mm as used on Centurion
- 120mm Wombat
- 120mm as used on Chieftain and Challenger
- 165mm as used on AVRE
Due to the increasing use of anti-spall liners on armour, HESH has become less effective.