Model 40 (Passenger)

Model 40 (Mailplane)

Conceptually similar

Model 40B mailplane

Model 40B with Passengers

Boeing Model 40B in Flight Above Mountain

Model 40B with NACA Cowling

Model 40B-4 Mailplane Radio Ship Model

Passengers and Pilot with the Boeing Model 40B Transport

Model 40Y Special Order Model 40

Model 40B at Boeing Hangar

Model 40B-4 Mailplane Manufacturing

Model 40B-4 at Plant I Hangar

Model 40 on Ground

William Boeing with a Model 40

Boeing Model 40 with Special Passenger

Model 40A Soars over Nevada’s Ruby Mountains

Eddie Allen in the Cockpit of a Model 40B-4

Pacific Air Transport Hangar in Sandpoint, ID

Boeing Model 40C at Gorst's Field

Boeing Model 40A Mail Plane in Flight Above Nevada's Ruby Mountains

Model 40C in Boeing Factory

1930 Nothing Discourages a Boeing 40-B4 Ad

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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

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