From Aero Digest, April, 1935:
Wiley Post Aircraft Corporation, Oklahoma City, Oklahoma
• President: Wiley Post. Vice-president: Mark Kleeden. Secretary and Treasurer: Thomas J. Ruddy. General Manager: J. H. Burke. Chief Engineer: Evert Stong.
Two-place open biplane. Straughan AL-1000 (Ford Model 1A) engine, 40 horsepower. A TC 561. Span upper wing 28 feet 6 inches, span lower wing 24 feet 6 inches. Length overall 19 feet 9 inches. Height overall 7 feet 8 inches. Wing area of upper wing 126.7 square feet. Wing area of lower wing 79.33 square feet. Chord 56 inches.
Power loading 25 pounds per horsepower. Wing loading 4.8 pounds per square foot.
Empty weight 581 pounds. Useful load 417 pounds. Payload 170 pounds. Gross weight 998 pounds. Fuel capacity 7 gallons. Oil capacity 1.25 gallons.
Maximum speed 80 miles per hour. Cruising speed 70 miles per hour. Landing speed 25 miles per hour. Service ceiling 10,000 feet. Rate of climb 600 feet per minute.
Fuselage: fabric covered fuselage of welded chrome molybdenum tubing construction with side-by-side seating arrangement, and dual controls. Wings are fabric covered; spruce and mahogany plywood construction; the top wing is carried above the fuselage on splayed out steel struts attached at the bot¬tom ends of the top fuselage longerons on either side of the fuselage; inset ailerons ate on the top wing; cut-away center section for improved visibility; wire braced N-type interplane struts between wings; radiator carried below center section. Tail group: fabric covered; chrome molybdenum tubing construction; fixed stabilizer; all surfaces wire-braced. The landing gear is of split type construction and is equipped with 16 X 7 X 3 airwheels and rubber cord shock absorbers; consists of Vee-type legs. The tail skid is of the leaf spring type.
Standard equipment includes a Stone wood propeller, tachometer, altimeter, oil temperature gauge, fire extinguisher, first aid kit, log book, dual controls.