Heavy bombers are large military aircraft designed to carry and deliver significant payloads of bombs over long distances. They are typically used in strategic bombing missions to target enemy infrastructure, military installations, and other critical assets. Heavy bombers can operate at high altitudes and are equipped with advanced navigation and targeting systems. Examples of heavy bombers include the Boeing B-17 Flying Fortress and the Northrop Grumman B-2 Spirit. These aircraft often have long ranges and can be armed with various types of munitions, including conventional bombs and precision-guided weapons. Their role has evolved over time, adapting to modern warfare needs.