Robertson Aircraft Corporation (RAC) was a post-World War I American aviation service company based at the Lambert-St. Louis Flying Field near St. Louis, Missouri, that flew passengers and U.S. Air Mail, gave flying lessons, and performed exhibition flights. It also modified, re-manufactured, and resold surplus military aircraft including Standard J, Curtiss Jenny/Canuck, DeHavilland DH-4, Curtiss Oriole, Spad, Waco, and Travel Air types in addition to Curtiss OX-5 engines.
RAC also operated facilities in Kansas City, San Antonio, Houston, New Orleans, and Fort Wayne. The company was owned and operated by brothers Maj. William B. Robertson (1893–1943) and Frank H. Robertson (1898–1938) who were both former U.S. Army aviators. 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.
Mail and air carrier operations
On April 15, 1926, Robertson Aircraft started Contract Air Mail (CAM) service over route CAM-2 from Lambert Field to Chicago, with stops in Springfield, Illinois, and Peoria, Illinois; Charles Lindbergh was employed as chief pilot for the service. RAC started service with four converted DH-4 aircraft (numbers 109–112) acquired from the U.S. Postal Service's Air Mail fleet, two of which were lost in accidents in September and November of 1926 while being piloted by Lindbergh. In 1927, Slonnie Sloniger was hired and took over Lindbergh's CAM-2 route. RAC added service over CAM-29 between St.Louis and Omaha, Nebraska, in May 1929.
By 1928, RAC was providing daily passenger and express service as well over the St. LouisChicago mail route flown in 12-passenger Stout Ford Tri-Motors.RAC Time Schedule August 20, 1928
During the Great Depression, Robertson's flight operations were merged into Universal Aviation Corporation along with Continental Airlines, Northern Air Lines, and Paul R. Braniff Inc., which became Braniff International Airways Universal Aviation became a component of The Aviation Corporation in 1930, merging many companies into American Airways in 1934, eventually becoming American Airlines. RAC's Sloniger became chief pilot and held pilot seniority no.1 at the newly created American Airlines.
Glider crash (1943)
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 an altitude of about by its United States Army Air Forces (USAAF) Douglas C-47 tow plane; all 10 souls on board died.
The glider was flown by Milton C. Klugh (pilot) and Jack W. Davis (co-pilot/mechanic) of the USAAF 71st Troop Carrier Command, and the eight passengers were St. Louis mayor William D. Becker, RAC president Maj William B. Robertson, RAC vice president and chief engineer Harold A. Krueger, deputy city comptroller Charles L. Cunningham, St. Louis Army Air Forces material command supervisor Paul H. Hazelton, director of public utilities Max H. Doyne, St. Louis County Court presiding judge Henry L. Mueller, and St. Louis Chamber of Commerce president Thomas N. Dysart. James Robertson, the 17-year-old son of Maj Robertson, had been a passenger on a successful test flight of the glider made immediately before the fatal flight."St. Louis Mayor William Becker and nine others were killed on Aug. 1, 1943, when a World War II glider they were riding in plunged and slammed nose first into the ground near the Lambert Airport runway." Eleven images from St. Louis Post-Dispatch, stltoday.com
The failed wing strut component, which had been manufactured by Robertson subcontractor Gardner Metal Products Company of St. Louis, a firm that normally built metal caskets, was found to be made of metal that was too thin for the purpose.Diehl, Alan E., PhD, "Silent Knights: Blowing the Whistle on Military Accidents and Their Cover-ups", Brassey's, Inc., Dulles, Virginia, 2002, Library of Congress card number 2001052726, , pages 81-82.Bowers, Peter M., "Breezing Along With The Breeze", Wings, Granada Hills, California, December 1989, Volume 19, Number 6, p. 19.
Aircraft Model name First flight Number built Type Waco CG-4 (license built) 1943 170 Combat glider
In popular culture The 1957 motion picture The Spirit of St. Louis featured an RAC DH-4 mailplane in flying sequences as well as Maj. Robertson (played by James Robertson Jr.) and company Air Mail pilots Lindbergh (James Stewart) and Harlan A. "Bud" Gurney (Murray Hamilton) among its characters.
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