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Model 40 (Passenger)
Model 40 (Passenger) 
Model 40 (Mailplane)
Model 40 (Mailplane) 
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Conceptually similar
Model 40B mailplane
Model 40B mailplane 
Model 40B with Passengers
Model 40B with Passengers 
Boeing Model 40B in Flight Above Mountain
Boeing Model 40B in Flight Above Mountain 
Model 40B with NACA Cowling
Model 40B with NACA Cowling 
Model 40B-4 Mailplane Radio Ship Model
Model 40B-4 Mailplane Radio Ship Model 
Passengers and Pilot with the Boeing Model 40B Transport
Passengers and Pilot with the Boeing Model 40B Transport 
Model 40Y Special Order Model 40
Model 40Y Special Order Model 40 
Model 40B at Boeing Hangar
Model 40B at Boeing Hangar 
Model 40B-4 Mailplane Manufacturing
Model 40B-4 Mailplane Manufacturing 
Model 40B-4 at Plant I Hangar
Model 40B-4 at Plant I Hangar 
Model 40 on Ground
Model 40 on Ground 
William Boeing with a Model 40
William Boeing with a Model 40 
Model 40A Soars over Nevada’s Ruby Mountains
Model 40A Soars over Nevada’s Ruby Mountains 
Boeing Model 40 with Special Passenger
Boeing Model 40 with Special Passenger 
Pacific Air Transport Hangar in Sandpoint, ID
Pacific Air Transport Hangar in Sandpoint, ID 
Eddie Allen in the Cockpit of a Model 40B-4
Eddie Allen in the Cockpit of a Model 40B-4 
Boeing Model 40A Mail Plane in Flight Above Nevada's Ruby Mountains
Boeing Model 40A Mail Plane in Flight Above Nevada's Ruby Mountains 
Boeing Model 40C at Gorst's Field
Boeing Model 40C at Gorst's Field 
Model 40C in Boeing Factory
Model 40C in Boeing Factory 
Model 40A on Ground
Model 40A on Ground 
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Boeing Model 40B flying over mountain

The four-passenger-Model 40B-4 was the major production model of the first Boeing mailplane. It had extra cabin windows and could carry four people as well as 500 pounds of mail. The first Model 40 was redesigned as the Model 40A in 1927 using an air-cooled engine. This engine was about 200 pounds lighter than the water-cooled engines used by competitors for the airmail contract, so the Model 40A won and became the first Boeing-built airplane to carry paying passengers as well as mail. The Model 40 series (A, B, and C) flew under the banner of Boeing Air Transport, a new company subsidiary. Models 40X and Y were custom-built for oil companies.
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Unique identifier BI232656 
Boeing ID 2760b 
Type Image 
Size 5383px × 4175px   64MB 
License type RM 
Keywords
1920s
biplanes
day
exteriors
flying
gray
historic production status
historic significance
innovation
mail planes
mountains
obsolete / old-fashioned
photos
right side views
silhouettes
snow
vintage / retro
virtual reality
white
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