Su-39 trainer, P.O.Sukhoj

27k photo of the Su-39 (maquette?), courtesy of Yuri Sorokin (Aviation)
Primary trainer, designed to replace the Yak-52. Intended for training and skill maintaining of civil pilots and airforce cadets. Suitable also for airclubs, liaison and light transport duties.

The Su-39 is a tandem two seat aircraft with retractable tricycle landing gear, derived from the Su-26 and Su-29 aerobatic competition aircraft. Originally planned 400hp M-14PF engine was found unreliable and short on resource, and classic well-tested 360hp M-14P was fitted. Variety of navigation equipment may be custom-fitted, including GPS, long-range and short-range navigation and even automatic landing approach.
Expected resource is 10000hours. Airframe strength and power load allow to perform aerobatics in loads range +11/-10g. Both seats are equipped with SKS-94 emergency ejection system (same as on Su-31), developed by AOOT 'Zvezda', creator of the K-36 combat aircraft 0-0 ejection seat. Cost of one hour is 2 to 2.5 times less than for class aircraft in the other same.
Note that the recent upgrade of Su-25 attack plane is also designated Su-39. May be for confusion? See Su-39;

References Links
  • ...
  • Su-39, Sukhoi
  • Su-39 at Aviation
  • Technical data
    Type Su-39
    Function trainer
    Year 2001?
    Crew 2
    Engines 1*400hp Vedeneyev M-14PF
    or 1*360hp Vedeneyev M-14P
    Length 7.28m
    Height 2.60m
    Wingspan 8.5m
    Wing area 12.2m2
    Empty weight 850kg
    Loaded weight 1300kg
    Wing load 107kg/m2
    Power load 3.6kg/hp
    Maximum Speed 370km/h
    Dynamic load +11-8g
    Landing Speed 110km/h
    Landing Roll 350m
    Takeoff Roll 230m
    Range 1500km
    Fuel consumption 17g/km
    Ceiling 7000m
    at 0m 13.5m/sec
    Fuel 260kg
    Cargo ?kg

    Created December 10, 1996
    Modified June 28, 1999
    by Alexandre Savine