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The STAL Dovern was a Swedish turbojet design of the early 1950s, named after a lake in Finspång municipality in Östergötland, Sweden.[1] Intended to power the Saab 35 Draken, this aircraft was powered by the Rolls-Royce Avon instead. The Dovern did not enter production.

Dovern
Type Turbojet
Manufacturer Svenska Turbinfabriks AB Ljungström
First run 1951
Major applications Saab 35 Draken (intended)

Design and development


The STAL company had been designing steam turbine engines and in the 1940s begun designing gas turbine engines. Their first running engine was the Skuten, ground tested in 1949 but not flown.[2] The Dovern was the next design, featuring a nine-stage axial compressor and single-stage turbine. First run in 1951, the engine was flight tested during 1953 using an Avro Lancaster provided by Air Service Training. The engine was installed underneath in a nacelle faired-in to the Lancaster's bomb bay. After several thousand hours of ground running and more than 300 hours of flight testing the engine was not selected, the Rolls-Royce Avon being preferred.[3]


Applications



Variants


Dovern
Base variant.
Dovern IIA
Basic engine without de-icing
Dovern IIB
Compressor bleed air system added for ice protection.
Dovern IIC
Afterburning version producing 45 kN (10,200 lbf) thrust.

Specifications (Dovern IIB)


Data from Flight.[4] Jane's 1955-56[2]

General characteristics

Components

Performance


See also


Comparable engines

Related lists


References


Notes
  1. "Sjöareal och sjöhöjd" (.pdf) (in Swedish). Swedish Meteorological and Hydrological Institute. Retrieved 12 April 2014.
  2. Bridgman, Leonard (1955). Jane's all the World's Aircraft 1955-56. London: Jane's all the World's Aircraft Publishing Co. Ltd.
  3. Gunston 1989, p. 165.
  4. Aero engines 1954 - Flight - 9 April 1954, p. 467 Retrieved: 6 June 2012
Bibliography



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