SIAI-Marchetti S.700 Cormorano

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 variable-pitch and reversible

Performance

• Cruise speed: 330 km/h (210 mph, 180 kn) at 3,000 m (9,800 ft)
• Range: 1,600 km (990 mi, 860 nmi)
• Service ceiling: 6,700 m (22,000 ft)
• Rate of climb: 7.1 m/s (1,400 ft/min)

Related lists

• List of seaplanes and amphibious aircraft