A single engined biplane, one example was built and evaluated by Latvia, but was not accepted for service.

Shackleton produced a wooden single-bay biplane, powered by a Rolls-Royce Eagle engine.

The slab-sided fuselage was of hexagonal section, with the crew of two seated in separate cockpits.

[3] While it proved to be manoeuvrable,[4][5] it was underpowered, and performance was poor, with the Latvians unwilling to pay for replacement of the Eagle with a more powerful Napier Lion engine.

[6] Data from Limited Editions Part 4: Beardmore W.B.XXVI[4]General characteristics Performance Armament