title: Savoia-Marchetti S.57
text: # Savoia-Marchetti S.57
  
  The Savoia-Marchetti S.57 was an Italian single-engine biplane flying boat intended for aerial reconnaissance, built by Savoia-Marchetti for Regia Aeronautica after World War I.
  
  ## Design and development
  
  Of wooden construction with a single-step hull, with pilot and observer/gunner in tandem open cockpits in the bow, the S.57 was powered by a single 186 kW (249 hp) Isotta-Fraschini V.6. The observer had a single ring-mounted 7.7 mm (0.303 in) machine gun.
  
  Eighteen S.57s were accepted by Regia Aeronautica in 1925 and used as trainers.
  
  A sole S.57bis (improved) was built, with a 224 kW (300 hp) Hispano-Suiza Type 42 engine.
  
  ## Operators
  
  ### Kingdom of Italy
  
  * Regia Aeronautica
  
  ## Specifications
  
  Data from The complete encyclopedia of world aircraft
  
  General characteristics
  
  * Crew: 2
  * Wingspan: 11.25 m (36 ft 11 in)
  * Gross weight: 1,605 kg (3,538 lb)
  * Powerplant: 1 × Isotta Fraschini V.6 6-cylinder water-cooled, in-line piston engine, 186 kW (249 hp)
  
  Performance
  
  * Maximum speed: 215 km/h (134 mph, 116 kn)
  
  Armament
  
  * Guns: 1 × 7.7 mm (0.303 in) machine gun mounted on a Scarff ring for the observer
  