Boeing 80

Boeing 80
Pays	Usa
Rôle	avion de ligne
Premier vol	27 juillet 1928
Construit	16

Lla Boeing 80 était un avion de ligne américain des années 1920. Un biplan trois-moteurs, le Modèle 80 a été construit par la Boeing Airplane Company pour Boeing’sa propre compagnie aérienne, Boeing Air Transport, transportant avec succès à la fois la poste aérienne et les passagers sur les services réguliers.

Source: Boeing 80 sur Wikipedia

Boeing Model 80A-1 Walk Around
Photographe	Vladimir Yakubov
Localisation	Musée du vol, Seattle
Photos	177

Boeing modèle 80A-1 01

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Boeing Model 80A-1 10

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Boeing Model 80 Walk Around
Photographe	Michael Benolkin
Localisation	Inconnu
Photos	24

Boeing Modèle 80 01

Boeing Modèle 80 02

Boeing Modèle 80 04

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Boeing Modèle 80 08

Boeing Modèle 80 09

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General Characteristics and Role

The Boeing Model 80A-1 was a major milestone in the early history of American air transport. It was a large, three-engine biplane designed and built by the Boeing Company in the late 1920s specifically for carrying passengers and mail. The original Model 80 was Boeing’s first passenger airliner, but the upgraded 80A-1 featured more powerful engines and increased seating capacity, allowing it to carry 18 passengers—a significant number for the era. The aircraft was primarily operated by Boeing Air Transport (BAT), an early component of what would eventually become United Airlines, on routes along the U.S. West Coast and Rocky Mountains. Its enclosed cabin, lavatory, and presence of the first U.S. flight attendants marked a substantial improvement in passenger comfort.

Property	Typical Value (Model 80A-1)
Rôle	Airliner, Passenger/Mail Transport
National Origin	États-Unis
Fabricant	Boeing Airplane Company
First Flight (Model 80A)	12 September 1929
Crew	2-3 (Pilot, Co-pilot/Radio Operator, Flight Attendant)
Capacité	18 passengers + Mail
Length	16.89 m (55 ft 5 in)
Envergure	24.38 m (80 ft 0 in)
Height	4.75 m (15 ft 7 in)
Empty Weight	4,560 kg (10,050 lb)
Max Takeoff Weight	7,938 kg (17,500 lb)

Powerplant and Performance

Engines: 3 x Pratt & Whitney Wasp C 9-cylinder air-cooled radial engines.
Power Output (Each): 313 kW (420 hp).
Maximum Speed: 222 km/h (138 mph; 120 kn).
Cruise Speed: 201 km/h (125 mph; 108 kn).
Range: 740 km (460 mi; 400 nmi).
Service Ceiling: 4,270 m (14,000 ft).

Key Features and Legacy

Three-Engine Configuration: Provided a crucial safety feature, allowing the plane to continue flight if one engine failed, essential for crossing mountainous regions.
Flight Attendants: The Model 80 introduced the world’s first air hostesses (flight attendants) in 1930, all of whom were registered nurses.
Survivability: Only one original Boeing Model 80A-1 survives today. It was restored and is on display at The Museum of Flight in Seattle, Washington.