high-explosive antitank
Quick Summary
High-explosive antitank (HEAT) ammunition is a type of shell designed to defeat enemy tanks. Developed in the 1950s, HEAT shells utilize a shaped charge with a conical cavity. This design concentrates the explosive energy into a high-velocity jet capable of piercing thick armor.1
While effective, HEAT rounds have been increasingly superseded by armor-piercing, fin-stabilized, discarding-sabot (APFSDS) ammunition since the 1970s. APFSDS projectiles feature long-rod penetrator cores and can be fired at velocities exceeding 1,650 meters per second, allowing them to perforate significantly thicker armor than earlier ammunition types.1
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
