[1][2] RAC also operated facilities in Kansas City, San Antonio, Houston, New Orleans, and Fort Wayne.

William Robertson left the company in 1928 to form the Curtiss-Robertson division of Curtiss-Wright to produce aircraft such as the Curtiss Robin, which RAC sold.

Postal Service's Air Mail fleet two of which were lost in accidents in September and November, 1926, while being piloted by Lindbergh.

[6] By 1928 RAC was providing daily passenger and express service as well over the St. Louis - Chicago mail route flown in 12-passenger Stout Ford Tri-Motors.

[5] On August 1, 1943 an "all St. Louis-built" WACO CG-4A-RO military troop and cargo transport glider (S/N 42-78839) built under license by RAC suffered in-flight structural failure and crashed during a demonstration flight at Lambert Field in St. Louis before a Sunday afternoon air show crowd of over 5,000 people when its right wing separated shortly after it had been released at about 2,000 feet by its Army C-47 tow plane; all ten souls on board died.