What is "schnellbomber"

A Schnellbomber (German; literally "fast bomber") is a high-speed bomber. The concept developed in the 1930s when it was believed that a very fast bomber could simply outrun its enemies. Omitting defensive armament allowed for significant reduction in drag (there would be no turrets, gondolas or gun barrels protruding from the fuselage) as well as weight (no guns, ammunition or manning crew members would be required on board), resulting in improved performance.