From Aero Digest, April, 1935:
National Airplane and Motor Company, Billings, Montana
• President and General Manager: A. B. Green. Vice-president: R. J. O’Malley. Chief Engineer: Hugh Thompson.
Two-place open high-wing monoplane. National 35 engine. 35 horsepower. Approval 2-465. Span 36 feet. Length overall 20 feet. Height overall 8 feet. Wing area 175 square feet. Chord 59 inches. Aileron area 22.5 square feet. Fin area 5.68 square feet. Rudder area 7.51 square feet. Stabilizer area 11.65 square feet. Elevator area 8.65 square feet. Power loading 25.7 pounds per horsepower. Wing loading 5.14 pounds per square foot.
Empty weight 450 pounds. Useful load 450 pounds. Payload 200 pounds. Gross weight 900 pounds. Fuel capacity 10 gallons. Oil capacity 1.5 gallons.
Maximum speed 85 miles per hour. Cruising speed 78 miles per hour. Landing speed 27 miles per hour. Service ceiling 14,000 feet. Rate of climb 490 feet per minute. Cruising range 312 miles.
Fuselage: fabric covered; steel tubing; side-by-side seating arrangement; Pyralin
windshield; short nacelle-type fuselage with single outrigger tail boom wire-braced to wings and faired into the nacelle; metal covered forward of the cockpit; nacelle structural members are disposed so as to permit easy access to cockpit. Wings: fabric covered; two sections; spars solid spruce; ribs spruce; wire braced to bottom fuselage longerons, to inverted Vee-type cabane strut above wing and to tail post. Tail group: fabric covered; braced by means of wires from the cabane strut as well as from a point on the nacelle after the tail skid, and from the rear wing beams inboard of the ailerons. Fixed split type landing gear equipped with 16 X 7 X 3 airwheels and cord ring shock absorbers; solid tube tail skid at rear of nacelle, permitting easy ground maneuvering.
Standard equipment includes Hartzell wood propeller.
Instruments: tachometer, oil pressure gauge, oil temperature gauge, and an altimeter.