However, by the end of the decade, the industry was heading towards a new era as Pan Am began operating its fleet of Boeing 307s, which featured the first-ever pressurized cabin.
During the 1940s, the onset of WWII meant commercial aviation developments slowed considerably. However, by the end of the decade, the industry was heading towards a new era as Pan Am began operating its fleet of Boeing 307s, which featured the first-ever pressurized cabin.