Spartan Aircraft Company, Tulsa, Oklahoma
Specifications from Aero Digest, April, 1935:
• Vice-president and General Manager: E. W. Hudlow. Chief Engineer: James B. Ford.
Four-place high-wing monoplane. Pratt and Whitney Wasp Junior engine, 320 horsepower. ATC 389.
Span 50 feet. Length overall 32 feet 7.75 inches. Height overaIl 8 feet 11 inches. Wing area 299 square feet. Chord 80 inches. Power loading 13.04 pounds per horsepower. Wing loading 13.96 pounds per square foot.
Empty weight 2632 pounds. Useful load 1543 pounds. Payload 805 pounds. Gross weight 4175 pounds. Fuel capacity 85 gaIlons. Oil capacity 7.75 gallons.
Maximum speed 145 miles per hour. Cruising speed 124 miles per hour. Landing speed 57.5 miles per hour. Service ceiling 14,600 feet. Rate of climb 940 feet per minute. Cruising range 648 miles.
Fuselage: fabric covered; welded steel tube construction; double tandem seating arrangement. Wing: fabric covered; spars and ribs of spruce; attached to top fuselage longerons and are braced to the bottom of the fuselage by parallel steel tube struts; outer ends of bracing struts are anchored to a cross-braced structure of steel tubes; inner end of front strut is anchored to a steel tube pyramid on the side of the fuselage to which the main leg of the landing gear is also attached; main fuel tanks carried in the wings, one on either side 9f the fuselage. Tail group: fabric covered; adjustable stabilizer; spruce spars, metal ribs in fin; elevators and rudder have duralumin tube spars and duralumin ribs. Fixed divided-type landing gear equiped with 9.50 X 12 tires. Bendix wheels and brakes, Cleveland Pneumatic Aerol shock absorbers; swivel-type tail wheel equipped with pneumatic tires. BaIl and plain bearing equipped.
Standard equipment includes navigation lights, Hamilton Standard metal prop eIler, Exide battery.
Instruments: altimeter, tachometer, air speed indicator, bank and turn indicator, oil pressure gauge, oil temperature gauge, compass, fuel gauge.