The S-37 was designed as a transatlantic aircraft for French ace René Fonck, following the crash of his even larger, three-engined S-35. The first S-37 airframe, NX1283, was built for Fonck, the second, as seen here, as a night bomber. Sikorsky teamed up with Consolidated at this time. The bomber was also known as the S-37B and was tested by the US Army with the test code (X)P-496, but rejected. In 1929 this machine was rebuilt as an airliner, becoming NC942M and NR942M - see other photos of this airframe by clicking on the constrution number link.