In January 1950, United began its Stratocruiser service ... both for airlines and manufacturer Boeing, which lost $7 million on the plane. The 377 Stratocruiser would go down in history as one ...

The Beluga's origins can be traced back to the European planemaker's rival across the pond, Boeing, and the 'Guppy' aircraft derived from Boeing's 377 Stratocruiser. These outsize cargo planes ...