Keystone_XLB-3
Keystone XLB-3
Prototype Biplane Bomber
The Keystone XLB-3 (originally built under the Huff-Daland name) was a prototype bomber biplane developed in the United States in the late 1920s. It was a twin-engine development of the single-engine LB-1, brought about by a change in policy by the United States Army Air Corps (USAAC).
This article includes a list of general references, but it lacks sufficient corresponding inline citations. (April 2017) |