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Hirtenberg HS.9

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Top speed
  
190 km/h

Length
  
8.05 m

Wingspan
  
11 m

First flight
  
1930

Hirtenberg HS.9 httpsimgrcgroupscomhttpwwwairwarruimag

Manufacturer
  
Hopfner (aircraft manufacturer)

The Hirtenberg HS.9 was an Austrian two-seat touring or training aircraft of the late 1920s and early 1930s. A derivative of the Hopfner HS-5/28 via the Hopfner HS-8/29, it was a parasol wing monoplane with a fixed tailskid landing gear and room for two occupants in tandem open cockpits, and first flew as the Hopfner HS-9/32 in 1932, powered by a de Havilland Gipsy I engine. Production versions had Siemens Sh 14 engines with NACA cowlings. A single example of a refined version with an uncowled Siemens engine was flown in 1935 as the Hopfner HS-9/35, shortly before the Hopfner company went bankrupt.

Contents

When Hopfner's assets were purchased by Otto Eberhardt Patronenfabrik, production continued of both de Havilland- and Siemens-powered aircraft under the Hirtenberg brand.

Variants

  • HS-9/32 - Original version by Hopfner
  • HS-9/35 - developed version of HS-9/32
  • HS.9 - Production aircraft with a Siemens Sh 14a piston engine.
  • HS.9A - Production aircraft with a de Havilland Gipsy Major piston engine.
  • HS.16 - military trainer version of HS.9

    • Operators

     Austria
  • Austrian Air Force (1927-1938)

    • Specifications (HS.9A)

    Data from British Civil Aircraft since 1919 Volume 3,

    General characteristics

  • Crew: 2
  • Length: 8.05 m (26 ft 5 in)
  • Wingspan: 10.972 m (36 ft 0 in)
  • Empty weight: 568.8 kg (1254 lb)
  • Gross weight: 948 kg (2090 lb)
  • Powerplant: 1 × de Havilland Gipsy Major, 90 kW (120 hp)

    • Performance

  • Maximum speed: 190 km/h (118 mph)

    • References

    Hirtenberg HS.9 Wikipedia
    (Text) CC BY-SA