Savoia-Marchetti SM.77

The Savoia-Marchetti SM.77 was an Italian transport seaplane developed by Savoia-Marchetti in the 1930s. It represented the latest development of the "double hull" formula started with the Savoia-Marchetti S.55 and continued with the Savoia-Marchetti S.66.

Role Flying boat airliner
National origin Italy
Manufacturer Savoia-Marchetti
First flight 1937
Number built 1
Developed from Savoia-Marchetti S.66

It differed from the previous S.66 in having 3x 800 hp (600 kW) (take-off) Alfa Romeo 126 R.C.10 radial engines driving 3-bladed variable pitch propellers, in place of the 3x Fiat A.24R V-12s of the S.66. The wing resumed the one developed for S.M.79 and presented several improvements to hulls and empennage.[1]


  1. AA.VV. (1985). "L'Aviazione - Grande Enciclopedia Illustrata" (in Italian). XII. Agostini: 34. Cite journal requires |journal= (help)
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