Prior to the com¬pany reorganization, Huff Daland had com¬pleted a prototype XLB 5, with triple rudders and two 420 hp Liberty engines mounted on the lower wings, and this was adopted as the initial production configuration. Ten similar LB 5s were delivered in 1927 28, followed by 25 twin tailed Keystone LB 5As delivered in 1928.
Standard armament consisted of five 0.30 in (7.62 mm) machine guns and the maximum bombload was 910 kg (2000 lb).
LB 5A
Span: 20.42 m (67 ft)
Length: 13.61 m (44 ft 8 in)
Gross weight: 5526 kg (12184 1b)
Maximum speed: 172 km/h (107 mph).
All Aero 