Security Airster S-1

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Airster S-1
Role Two-seat light monoplane
National origin United States
Manufacturer Security National Aircraft Corporation
American Aircraft Corporation
Designer Bert Kinner
First flight 1933
Number built 19

The Security Airster S-1 is an American two-seat single-engined monoplane designed by Bert Kinner and built by his Security National Aircraft Corporation later named the American Aircraft Corporation.[1]


The Airster S-1 appeared in 1933 after the designer Bert Kinner had started the Security National Aircraft Corporation to build it.[1] The Airster S-1-A was a side-by-side two-seat single-engined low-wing braced monoplane, it had folding wings and a fixed tailwheel landing gear.[1] The aircraft was powered by one of Kinners engines the 100 hp (75 kW) Kinner K-5 radial.[1] A coupe option was available to enclose the open cockpit.[1] The economic situation in the United States of the early 1930s was not a good time to launch a light aircraft and only 15 were built when production of the S-1A stopped in January 1935.[1] One of the purchasers of the aircraft turned out to be Edgar Rice Burroughs, author of the Tarzan series.[2][3]

In 1939 with the company renamed the American Aircraft Corporation, Kinner attempted to restart production with a revised Airster S-1-B, again powered by his own engine a 125 hp (93 kW) Security S5-125 radial.[1] Times were no better and only about five were built before the factory and assets were bought in 1942 by the National Airplane & Motor Company.[1]


Airster S-1
Prototypes powered by 100hp (75kW) Kinner K-5 radial engine, two built.[4]
Airster S-1-A
Production version, 12 built.[4]
Airster S-1-B
Revised 1939 variant with a 125hp (93kW) Security S5-125 radial engine, five built.[4]

Specifications (S-1-A)[edit]

Data from [4]

General characteristics

  • Crew: 2
  • Length: 23 ft 11 in (7.29 m)
  • Wingspan: 40 ft 0 in (12.19 m)
  • Empty weight: 1,197 lb (543 kg) [5]
  • Gross weight: 1,775 lb (805 kg) [5]
  • Powerplant: 1 × Kinner K-5 radial piston engine, 100 hp (75 kW)


  • Maximum speed: 100 mph (160 km/h, 87 kn)
  • Cruise speed: 88 mph (142 km/h, 76 kn)
  • Range: 300 mi (480 km, 260 nmi)
  • Service ceiling: 14,000 ft (4,300 m)



  1. ^ a b c d e f g h Orbis 1985, p. 2899
  2. ^ "A Plane-Crazy America". AOPA Pilot. May 2014.
  3. ^ "Joan Burroughs". Retrieved 14 February 2014.
  4. ^ a b c d "American airplanes - Sa - Si". 7 April 2009. Retrieved 2010-01-01.
  5. ^ a b Flight 24 May 1934, p. 522.