09/30/2015. Remarks by Johan Visschedijk: "During summer 1918 and the immediate postwar period, several designs based on the basic S-4 concept were completed. The S-4E was an aerobatic trainer with an 110 hp Le Rhône engine, tapered wings and redesigned tail surfaces similar to the SPAD, and a new landing gear. Possessing a marked tail-heaviness and inadequate propeller ground clearance, it was sold engineless to Basil L. Rowe.

For the 1925 National Air Races, Rowe modified the S-4E with an 135 hp Aeromarine 737 eight-cylinder liquid-cooled V-engine. Named Space-Eater, it won first place in the Free-for-All race at Mitchel Field, New York, averaging 102.9 mph (165.6 kmh). With Space-Eater Rowe also won the B.B.T. Trophy race at Philadelphia in 1927."