Design and Development
The LB-5 was a member of the family of closely related bomber designs that had debuted with the XLB-1 in 1923, and as such, was a large, single-bay, conventional biplane. Like most of the family, it was a twin-engine machine, with engines mounted in nacelles on the lower wing. The prototype XLB-5 had a single tail fin like the XLB-1, the 10 LB-5 production machines were designed with a triple-finned tail under the Huff-Daland name, but the final batch of 25 was redesigned with twin tails and designated LB-5A.
Read more about this topic: Keystone LB-5
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