Sikorsky XPBS
As the US Navy was beginning to receive the first prototypes of the aircraft that would become the PBY Catalina, it simultaneously began to solicit proposals for the eventual replacement of this flying boat. The […]
sikorsky
Sikorsky S-42
In 1931 Pan Am president Juan Trippe solicited designs from six different companies for an aircraft to fly long distance, transoceanic passenger and airmail routes. Of the six companies, only Martin with their ambitious M-130 […]