GAZ-5, Passenger biplane by E.E.Groppius

Photo (37k b/w) from "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.348

assenger biplane with very bulky fuselage, 'filling' all the space between upper and lower wings. Engine compartment was followed by roomy passenger cabin. Crew (pilot and mechanic) occupied open cockpit next to the passenger cabin.
Front section was covered with aluminum, passenger section with plywood and tail with fabric. E.E.Groppius developed special radiator to fit under the fuselage without adding much drag. Aircraft was built at GAZ-5 factory.
Aircraft was ready in early 1924, flown by pilot Efremov in Summer-Fall same year. Small ceiling, slow climb and long Takeoff Roll killed the project.
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  • "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.348-349;
  • Not found
    Technical data
    Type GAZ-5
    Function Passenger
    Year 1924
    Crew 2
    Engines 1*300hp Hispano-Suiza
    Length 8.5m
    Wingspan 11.2m
    Wing area 35.0m2
    Empty weight 1118kg
    Loaded weight 1849kg
    Wing load 53kg/m2
    Power load 6.2kg/hp
    Speed at 0m 165km/h
    Ceiling 300m
    Seats 4
    Modified February 16, 1998
    by Alexandre Savine
    and Sergey Andreev;
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