A parasol-wing version (the Model 20 Fleetster) was also developed with the wing supported by four short struts. The open cockpit was moved to behind the passenger cabin and the space used as a cargo compartment. Three aircraft were built for NYRBA and a private Canadian customer.
In 1932 a carrier-borne dive bomber version (Model 18) was evaluated by the United States Navy as the XBY-1, it was not ordered but was the first stressed-skin aircraft; and the first aircraft with so-called "wet wing" integral fuel tanks in the wings; operated by the Navy.
One aircraft powered by a 575hp (429kW) Wright R-1820E Cyclone radial engine.
Two-seat carrier based bomber for US Navy with revised wing (50 ft (15.24 m) span) featuring an integral fuel tank. Fitted with an internal bomb-bay capable of carrying a 1,000 lb (450 kg) bomb and powered by 600 hp (448 kW) R-1820-78 engine. One built, evaluated as XBY-1 (BuNo 8921).
Parasol-wing version of the Model 17 for the NYRBA, 4 built.