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SIAI-Marchetti S.700

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Title: SIAI-Marchetti S.700  
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SIAI-Marchetti S.700

S.700 Cormorano
Role General-purpose amphibian
National origin Italy
Manufacturer SIAI-Marchetti
Designer Stelio Frati
Status Not built
Developed from SF.600 Canguro

The SIAI-Marchetti S.700 Cormorano was an Italian proposal for a twin-engined amphibian based on the SF.600 Canguro.[1]


The S.700 was designed to use as much of the SF.600 as possible to build a twin-engined amphibian, changes required included a stronger wing due to the increased all-up weight.[1] The S.700 was a high-wing cantilever monoplane with the ability to land on water or use a retractable tricycle landing gear.[1] The hull and floats were to be made of composite materials and the engines were to be fitted on the upper surface of the wings to protect against spray.[1] It was planned that the aircraft could use the Italian Alfa Romeo AR-318 turboprop with three-bladed tractor propellers.[1] As well as use as a freighter or general utility aircraft with 12 seats it was also proposed to use it as a water bomber with a capacity for 1,300 l (343 US gal) of water or retardants.[1]


Data from [1]

General characteristics
  • Crew: 1 or 2
  • Capacity: 12-seat cabin
  • Length: 12.15 m (39 ft 10 in)
  • Wingspan: 15 m (49 ft 3 in)
  • Height: 3.6 m (11 ft 10 in)
  • Wing area: 24 m2 (260 sq ft)
  • Empty weight: 2,250 kg (4,960 lb)
  • Max takeoff weight: 4,200 kg (9,259 lb)
  • Powerplant: 2 × Alfa-Romeo AR-318 turboprop, 430 kW (580 hp) each
  • Propellers: 3-bladed


  • Cruise speed: 333 km/h; 207 mph (180 kn) at 10000 ft
  • Range: 1,600 km (994 mi; 864 nmi)
  • Service ceiling: 6,700 m (21,982 ft)
  • Rate of climb: 7.1 m/s (1,400 ft/min)

See also

Related lists



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