HE Rockets
HIGH-EXPLOSIVE ROCKETS
High-explosive (or HE) rockets detonate upon impact with a target, driving shards and fragments of metal deep into the target and igniting anything flammable (fuel tanks, for example).

Given the strength of modern aircraft armor, HE rockets are most effective when fired at portions of a target that have already been torn up by other ordnance, allowing the explosion to take place in the aircraft's interior.