When Boeing developed the B-29 Stratofortress during WW II, it was soon realized that it was the beginning of a new plateau of
aircraft technology. The B-29's wings, engines, and tail were mated with a completely new fuselage, whose dimensions at that time
looked fantastic. Pan American was very interested in the plane, but thought that it would be even better equipped with the new
Wasp Major engine, then in development for the B-29's successor, the B-50. The interior would feature a two-deck arrangement,
with luxurious furnishings and a spiral staircase to a downstairs bar / lounge. In June 1946 Pan American ordered 20 377's, now named
the Stratocruiser. Further orders came from Northwest, American Overseas, SAS, BOAC, and United. However, total production of the
Stratocruiser only came to 56, with most airlines shying away from the complex Wasp Major engines.
The Stratocruiser was typically used in first class transatlantic service.