A bomber is a military aircraft designed to attack ground and sea targets, primarily by dropping bombs on them. Classifications of bombers Strategic bombers are primarily designed for long-range strike missions with bombs against strategic targets such as supply bases, bridges, factories, shipyards, and cities themselves, in order to damage an enemy's war effort. Examples include the: Avro Lancaster, Heinkel He-111, Junkers Ju 88, B-17 Flying Fortress, B-24 Liberator, B-29 Superfortress, B-36 P… (More on Bombers)