Engineering:Grigorovich M-23bis
| Role | Biplane flying boat |
|---|---|
| National origin | USSR |
| Manufacturer | Grigorovich Design Bureau |
| Designer | Dmitri Grigorovich |
| First flight | Failed to fly |
| Primary user | Soviet Naval Aviation |
| Number built | 1 |
| Developed from | Grigorovich M-9 |
The Grigorovich M-23bis was a Soviet biplane flying boat built during the 1920s.
Design
Dmitri Grigorovich developing the M-23 as a derivative of the Grigorovich M-9 with a more powerful engine. The first M-23 design was abandoned after the revolution and transformed into an improved design, the M-23bis, in 1922. The aircraft was completed at GAZ-3 "Krasnyj Letchik" (The Red Pilot) in mid-Summer 1923, but the unsuccessful hull shape meant that it failed to take off. The M-23bis was sent back for modifications, but in late 1923 was destroyed by a flood at the Krestovsky Island hangar.[1]
Specifications (M-23bis)
Data from Aircraft of the Soviet Union : the encyclopaedia of Soviet aircraft since 1917,[2] Russian Aviation Museum : M-23[3]
General characteristics
- Crew: 2
- Length: 8.7 m (28 ft 7 in)
- Wingspan: 12.5 m (41 ft 0 in)
- Wing area: 45.8 m2 (493 sq ft)
- Empty weight: 1,165 kg (2,568 lb)
- Gross weight: 1,615 kg (3,560 lb)
- Powerplant: 1 × Fiat A.12 6-cylinder water-cooled in-line piston engine, 210 kW (280 hp)
- Propellers: 2-bladed fixed-pitch pusher propeller
Performance
- Maximum speed: 165 km/h (103 mph, 89 kn) estimated
- Wing loading: 35 kg/m2 (7.2 lb/sq ft)
References
- ↑ Shavrov, V.B. (1994) (in Russian). Istoriia konstruktskii samoletov v SSSR, 1938–1950 (gg. (3 izd.) ed.). Moscow: Mashinostroenie. p. 350. ISBN 978-5-217-00477-5.
- ↑ Gunston, Bill (1983). Aircraft of the Soviet Union : the encyclopaedia of Soviet aircraft since 1917. Osprey. p. 91. ISBN 085045445X.
- ↑ "M-23, D.P.Grigorovich". http://ram-home.com/ram-old/m-23.html. Retrieved 2 February 2019.
Bibliography
- Kulikov, Victor (December 1996). "Le fascinante histoire des hydravions de Dimitry Grigorovitch" (in French). Avions: Toute l'aéronautique et son histoire (45): 20–33. ISSN 1243-8650.
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