Huff-Daland_B-1
Huff-Daland XB-1
American bomber prototype
The Huff-Daland XB-1 was a prototype bomber aircraft built for the United States Army Air Corps.
The XB-1 was the first aircraft named using just a B- designation. Prior to 1926, the U.S. Army used LB- and HB- prefixes, signifying 'Light Bomber' and 'Heavy Bomber'. The first XB-1, called the Super-Cyclops by Huff-Daland,[1] was an extension of the earlier Huff-Daland XHB-1 'Cyclops'. It was essentially the same in size, but sported a twin tail and twin engines.