Savoia-Marchetti S.73

File:SM S.73.jpg

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 name = S.73
 type = Airliner
 manufacturer = Savoia-Marchetti
 caption = Czech Airlines S.73
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 first flight = 1934
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The Savoia-Marchetti S.73 was a three engine airliner that flew during the 1930s and early 1940s. The first prototype flew in 1934. The S.73 flew in passenger service with airlines such as Sabena, Ala Littoria, Czech Airlines and Avio Linee Italiane. At the outbreak of World War II, some of these planes were pressed into military transport duty with Italy and Belgium.

Specifications (S.73)

crew = 4-5 and 18 passengers
length main = 17.45 m
length alt = 57 ft 3 in
span main = 24.0 m
span alt = 78 ft 9 in
height main = 4.95 m
height alt = 15 ft 1 in 
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loaded weight main = 10,430 kg
loaded weight alt = 22,933 lb
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engine (prop) = Piaggio Stella X.RC 9
type of prop = air cooled radial engine
number of props = 3
power main = 522 kW 
power alt = 700 hp
max speed main =
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cruise speed main = 280 km/h
cruise speed alt = 174 mph
range main = 1,020 km
range alt = 633 mi
ceiling main = 7,400 m
ceiling alt = 24,278 ft
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