The 1928 Alexander Racer NX7187 single/two-place open cockpit biplane was a modified-wing racer for the 1929 Nationals piloted by Reggie Sinclaire. Powered by a 150hp Curtiss C-6A, it came in second in the 50-mile free-for-all event, at 110 mph.
Sinclaire, an ex-Lafayette Escadrille SPAD pilot, was heir of the Corning Glass Co family.