Security National Aircraft Corporation, Van Nuys, California
Specifications from Aero Digest, April, 1935:
• President and General Manager: W. B. Kinner. Vice-president: A. C. Essig. Sales Manager: Hugh H. Green. Chief Engineer: Max B. Harlow.
Two-place open low-wing monoplane. Security S-5 engine, 120 horsepower. ATC 521.
Span 40 feet. Length overall 23 feet 11 inches. Height overall 7 feet 9 inches. Wing area 240 square feet. Chord 84 inches. Power loading 17.75 pounds per horsepower. Wing loading 6.75 pounds per square foot.
Empty weight 1197 pounds. Useful load 578 pounds. Payload 244.5 pounds. Gross weight 1775 pounds. Fuel capacity 25 gallons. Oil capacity 3 gallons.
Maximum speed at 1900 r.p.m. 110 miles per hour. Cruising speed at 1800 r.p.m. 100 miles per hour. Landing speed 35 miles per hour. Service ceiling 14,000 feet. Rate of climb 1000 ft. per min. Cruising range 300 miles.
Fuselage: fabric covered; welded 4130 tubing; side-by-side seating arrangement, dual controls; coupe enclosure optional equipment; baggage compartment in fuselage aft of seats; engine mount can be swung around at 90°. Wing: fabric covered; wood construction; folding wings; outer panels attach to short stub center section braced to fuselage by a strut intended to transmit the oleo leg loads directly into the fuselage structure. Tail group: fabric covered; welded 4130 tubing; adjustable stabilizer. Fixed divided type landing gear equipped with Goodrich 6.50 X 10 tires, Autofan wheels and brakes, oleo shock absorbers; fully swivelling tail wheel with solid rubber tires. Also adaptable for installation of twin float equipment. Engine controls plain and roller bearing equipped.
Standard equipment includes Story or Hamilton Standard metal propeller, battery, navigation lights, electric starter, switch, hand fire extinguisher.
Instruments: tachometer, altimeter, oil pressure gauge, oil temperature gauge. Also see data in July, 1933, AERO DIGEST.