Seeing the success of the Navy's NY-1 modification of a PT-1 airframe, the USAAC came to the conclusion that a radial engine was indeed ideal for a trainer.

Therefore, one PT-1 airframe was completed as XPT-2 with a 220 hp (164 kW) Wright J-5 Whirlwind radial engine.

The XPT-3 became the XPT-5 when fitted with the Curtiss Challenger R-600 two-row six-cylinder radial engine, but was soon converted to PT-3 standard.

[2] The PT-3 aircraft were superseded by the Boeing PT-13 Stearman starting in 1937, but a number were still operational with the Spartan Flying School in Tulsa Oklahoma into the middle of World War II.

[1] Data from "United States Military Aircraft Since 1908" by Gordon Swanborough & Peter M. Bowers (Putnam Newy York, ISBN 0-370-00094-3) 1977, 675 pp.General characteristics Performance Media related to Consolidated PT-3 at Wikimedia Commons