First flown in 1934, the S.73P was a long-range commercial transport powered by three 522kW Piaggio Stella IXRC or other engines of similar output. Accommodation provided for 18 passengers. Deliveries to commercial operators began in 1935.
Many were impressed by the Regia Aeronautica as troop transports during World War II, although a specific military version was produced as the S.73M.
Sabena relied on a fleet of Fokker F.VIIb/3ms until they were replaced by Savoia--Marchetti S.73s.
Engine: 3 x Alfa Romeo 126 RC.10, 597kW
Max take-off weight: 10800 kg / 23810 lb
Loaded weight: 7300 kg / 16094 lb
Wingspan: 24.0 m / 79 ft 9 in
Length: 18.37 m / 60 ft 3 in
Height: 4.45 m / 15 ft 7 in
Wing area: 92.2 sq.m / 992.43 sq ft
Max. speed: 325 km/h / 202 mph
Ceiling: 7000 m / 22950 ft
Range: 1000 km / 621 miles