[1] The Challenger was a conventional mixed-construction biplane with a fixed tailskid landing gear.

It had two open tandem cockpits for a pilot (at the rear), and passenger (forward) and was powered initially by a 90 hp (67 kW) Curtiss OX-5 inline engine.

[citation needed] In 1930, the KR-34CA, a military version of the Fairchild KR-34 based on the Kreider-Reisner C-4C Challenger design, was built in Farmingdale, New York.

A light attack craft, it had two .30 caliber Browning machine guns mounted on the nose, firing through the propellers.

Fairchild type numbers in brackets[1] Data from The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 1674.General characteristics Performance