Air Force Museum
VB-1 Azon Guided Bomb
The VB-1 (VB for vertical bomb) was a 1,000-pound bomb fitted with a tail assembly containing radio-controlled movable rudders. These permitted the bombardier to attain greater accuracy by steering the bomb to the right or left (referred to as azimuth, hence the name Azon) after its release from the carrier aircraft. A bright flare was installed in the tail so the bombardier could watch the trajectory of the VB-1 as it fell earthward.
In depth
History & service
The Azon was used during World War II with moderate success in the European and Mediterranean Theaters and with greater success in the China-Burma-India Theater where B-24 crews knocked out 14 bridges in seven missions. The Azon was the only radio-guided bomb to reach operational use with the U.S. Army Air Forces during WWII.
Aircraft change the battlefield
In the First World War, aircraft became valuable because they could see beyond the front line. Reconnaissance and artillery observation affected decisions on the ground. Once that information mattered, opposing forces had reason to attack the aircraft gathering it. Fighters, defensive armament, and increasingly specialized missions developed around this contest over observation and freedom of movement.
The aircraft were fragile by later standards, but their crews worked inside a rapidly expanding military system. Training, maintenance, replacement aircraft, photography, communications, and weather reporting supported each sortie. Improvements in engines and armament changed tactics, while the pressures of combat exposed weaknesses that might have taken much longer to discover in peacetime.
Personal stories should be read alongside those systems. A uniform or a named aircraft connects the war to an individual, but the individual depended on many others and operated under constraints that skill could not eliminate. Aircraft from opposing sides show how designers answered similar problems in different ways. The later military collections in Dayton and at Udvar-Hazy reveal what endured: the need to gather information, protect friendly forces, move people and supplies, and coordinate action across distance. The scale changed enormously; the relationship between an aircraft's design and the job it had to perform remained fundamental.
