M-24, M-24bis by D.P.Grigorovich

60k b/w photo of M-24 "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.351

B
iplane flying boat, modification of the M-9. Aircraft was ordered by the Management of Naval Aviation. Project started on April 12, 1922 at GAZ-3 factory. Pre-production aircraft was factory-tested in Spring 1923 and rushed into production.
In 1924 first batch of 40 M-24's was transferred to naval aviation. Soon factory was swamped with pilot's complains about shortcomings and defects of the flying boat. Special panel investigated those complains, and decision was in the air to withdraw M-24 from service. Aircraft was rescued by crash of Junkers Ju-20 (major competitor for M-24).
production of M-24 continued with several improvements under designation M-24bis. Engine was boosted to 260hp by replacing iron pistons with aluminum ones. M-24bis was put into production (Spring 1924) actually without D.P.Grigorovich, who at the time working at Aviazavod (Aircraft Works) No.1.
20 M-24bis were built on the GAZ-3 factory. Those were the last of the 'M'-line. Design based on the 1915 successful M-9 was completely obsolete in 1924.
PredecessorsModifications

M-9		 Last of the 'M'-line
ReferencesLinks
  • "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.350-351;
    		•
  • M-24, Grigorovich
  • M-24 at Virtual Aircraft Museum
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    		Technical data
    Type M-24 M-24bis
    Function Naval reconnaissater
    Year 1923 1924
    Crew 2
    Engines 1*220hp Renault V-8 1*260hp modified Renault V-8
    Length 9.0m 9.0m
    Wingspan 16.0m 16.0m
    Wing area 55.0m2 55.0m2
    Empty weight 1200kg 1200kg
    Loaded weight 1650kg 1700kg
    Wing load 30.0kg/m2 31.0kg/m2
    Power load 7.5kg/hp 6.6kg/hp
    Speed at 0m 130km/h 140km/h
    Ceiling 3500m 4000m
    Armament
    Guns 1*mg7.62mm
    Bombs 100kg
    Created January 25, 1996
    Modified July 17, 1997
    by Alexandre Savine;    		 Back to
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