|Role||Flying boat airliner|
|National origin||United States|
The Sikorsky S-45 was a proposed double-deck transoceanic flying boat originally designed in 1938 by Sikorsky Aircraft for Pan Am. The high wing monoplane featured a single-step hull with a triple-tail and was to be powered by six Wright R-3350 Duplex-Cyclone engines which were being developed at the time. The aircraft would have competed with the Boeing 314 but no examples of the S-45 were ever manufactured.
Data from Global Security
- Capacity: 100 passengers
- Length: 155.5 ft (47.4 m)
- Wingspan: 236 ft (72 m)
- Height: 25.75 ft (7.85 m)
- Wing area: 4,670 sq ft (434 m2) 
- Empty weight: 34,930 lb (15,844 kg)
- Gross weight: 87,000 lb (39,463 kg)
- Powerplant: 6 × Wright R-3350 Duplex-Cyclone Air-cooled 18-cylinder radial engines, 2,500 hp (1,900 kW) each 
- Cruise speed: 200 mph (322 km/h; 174 kn)
- Range: 5,000 mi (4,345 nmi; 8,047 km)
|Wikimedia Commons has media related to Sikorsky aircraft.|
- "Sikorsky S-45 Flying Boat". www.globalsecurity.org. 2017. Retrieved 19 May 2017.
- "The American Fixed Wing Era". www.sikorskyarchives.com. Sikorsky Archives. Retrieved 14 May 2017.
- Johnson, E.R. (2009). American Flying Boats and Amphibious Aircraft: An Illustrated History. Jefferson, North Carolina: McFarland & Company, Inc., Publishers. p. 340. ISBN 978-0-7864-3974-4.