BRAND and MODEL
SIKORSKY S.42
TYPE
Long-range commercial flying-boat airliner
ORIGIN
United States of America
ENGINE
Four 492 kw (660 hp) Pratt & Whitney R-1690 Hornet nine-cylinder single-row supercharged air-cooled radial engines
SPECIFICATIONS
Wingspan: 34.79 m (114 ft 2 in)
Length: 20.62 m (67 ft 8 in)
Height: 5.28 m (17 ft 4 in)
Wing area: 123.55 m² (1,330 sq ft)
Max speed: 306 km/h (190 mph)
Cruising speed at sea level: 257 km/h (160 mph)
Cruising speed at 3,657 m (12,000 ft): 273 km/h (170 mph)
Stalling speed: 105 km/h (65 mph)
Rate of climb: 305 m/min (1,000 ft/min)
Service ceiling: 4,877 m (16,000 ft)
Range at cruising speed at sea level: 1,931 km (1,200 miles)
Range with 680 kg (1,500 lb) payload at cruising speed at 1,829 m (6,000 ft): 4,827 km (3,000 miles)
Fuel capacity: 4,693 litres (1,032 Imp gals)
Empty weight: 8,965 kg (19,754 lb)
Useful load: 8,272 kg (18,236 lb)
Loaded weight: 17,237 kg (38,000 lb)
PHOTO
Science Photo Library:Source of phothograph
