International Air-Coach
The International F-18 Air Coach was a 1920s American biplane transport that was designed and manufactured by the International Aircraft Corporation in Long Beach, California. The company stopped manufacturing F-18's by 1928 and sold its rights to the aircraft in 1931.
Only six F-18's were ever built. One these aircraft, Miss Hollydale, was entered to fly in the 1927 Dole Air Race between Northern California and Hawaii, but the pilot withdrew from the competition before it began.
The F-18 had a cabin for four passengers and an open cockpit with side-by-side seating for a pilot and a fifth passenger.