The Macchi M.9 was a flying boat bomber produced in Italy close to the end of World War I, and shortly afterwards. It was a conventional design for its day, with unstaggered biplane wings of unequal span and a single engine mounted pusher-fashion on struts in the interplane gap, close to the underside of the top wing. The pilot and observer sat side by side in an open cockpit. While earlier Macchi flying boats had conventional interplane struts, the M.9 introduced the Warren truss-style struts that would become characteristic of this manufacturer's designs.
|A M.9 of the Argentine Naval Aviation, circa 1920s|
|Role||Flying boat bomber|
|Number built||ca. 30|
Around 16 examples were delivered to the Italian Navy prior to the Armistice, and around another 14 were assembled after the end of hostilities. A small number of postwar aircraft were built with four seats under the designation M.9bis and were used in Switzerland for carrying passengers and mail.
- Polish Navy (Naval Aviation Base in Puck)
Data from Jane's All the World's Aircraft 1919, p. 390.
- Crew: 2, pilot and observer
- Length: 9.40 m (30 ft 10 in)
- Wingspan: 15.40 m (50 ft 6 in)
- Height: 3.25 m (10 ft 8 in)
- Wing area: 48.5 m2 (521 ft2)
- Empty weight: 1,250 kg (2,750 lb)
- Gross weight: 1,800 kg (3,960 lb)
- Powerplant: 1 × Fiat A.12, 208 kW (280 hp)
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Related lists List of seaplanes and flying boats
- Taylor 1989, 617
- Jane's All the World's Aircraft 1919, 391
- Angelucci 1983, p. 90.
- Angelucci, Enzo. The Rand McNally Encyclopedia of Military Aircraft, 1914-1980. San Diego, California: The Military Press, 1983. ISBN 0-517-41021-4.
- Grey, C.G. Jane's All the World's Aircraft 1919. London: Sampson Low Marston, 1969 (reprint). ISBN 978-0715346471.
- Taylor, Michael J. H. Jane's Encyclopedia of Aviation. London: Studio Editions, 1989. ISBN 0-517-69186-8.