The Keystone LB-5 (originally ordered under the Huff-Daland name) was a bomber aircraft produced in the United States in the late 1920s. Its manufacturer nicknamed it the Pirate but this name was not officially adopted by the USAAC. 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.
Made by Keystone Aircraft.