Grigorovich M-24

The Grigorovich M-24 (Russian Григорович М -24) was a Soviet biplane flying boat in construction from the 1920s.

Development

Dmitry Grigorovich, this time in GAS plant No. 3 " Red Wings" in Saint Petersburg active, began with the development work in April 1922, where he was based on its successful M-9. In contrast to this, the M-24 was given at two aileron airfoil, even the hull surfaces and the total of changes. Was powered by a Renault engine with 220 hp.

1923 introduced the M- 24 by the flight test and was then produced in a quantity of 40 aircraft which were delivered from April 1924. The flight performance, however, were quite unsatisfactory, in addition, the pilots and maintenance personnel complained about many occurring defects so that Grigorovich the draft again revised. There were made some design improvements and built a stronger Renault engine with 260 hp.

Known as M- 24bis aircraft flew for the first time in autumn 1924. From their 20 copies were built, which were used until 1926 when the Soviet Navy as a coastal reconnaissance.

The M-24 was the last flying boat, designed by Grigorovich; he already changed during the redesign of the M - 24bis into GAS Plant No. 1, where he designed, among other things, the fighter I-2.

Technical data ( M- 24bis )

• Wingspan: 16.00 m
• Length: 9.00 m
• Wing area: 55,00 m²
• Mass: 1200 kg
• Take off weight: 1700 kg
• Drive: 8- cylinder V- engine from Renault with 194 kW ( 260 hp )
• Maximum speed: 140 km / h
• Ceiling: 4000 m
• Armament: a 7.62 mm machine gun
• 100 kg bomb load