According to wikipedia he used his railroad experience in aviation after he retired:
https://en.wikipedia.org/wiki/Octave_ChanuteOctave Chanute began his training as a budding civil engineer in 1848.
He was widely considered brilliant and innovative in the engineering profession. During his career he designed and constructed the United States' two biggest stock yards, Chicago Stock Yards (1865) and Kansas City Stockyards (1871). He designed and built the Hannibal Bridge which was the first bridge to cross the Missouri River in Kansas City, Missouri, in 1869 and established Kansas City as the dominant city in the region. He designed many other bridges during his railroad career, including the Illinois River rail bridge at Chillicothe, Illinois,[3] the Genesee River Gorge rail bridge near Portageville, New York (now in Letchworth State Park), the bridge across the Missouri River at Sibley, Missouri, across the Mississippi River at Fort Madison, Iowa, and the Kinzua Bridge in Pennsylvania.
Pioneer in Wood Preservation[edit]
Chanute also established a procedure for pressure-treating wooden railroad ties with an antiseptic that increased the wood’s lifespan in the tracks. Establishing the first commercial plants, he convinced railroad men that it was commercially feasible to make money by spending money on treating ties to extend their service time and reduce replacement costs. As a way to track the age and longevity of railroad ties and other wooden structures, he also introduced the railroad date nail in the United States.
Chanute retired from the Erie Railway in 1883 to become an independent engineering consultant.
Aviation pioneer[edit]
Chanute first became interested in aviation watching a balloon take off in Peoria, IL, in 1856. When he retired from his railroad career in 1883, he decided to devote some leisure time to furthering the new science of aviation. Applying his engineering background, Chanute collected all available data from flight experimenters around the world and combined it with the knowledge gathered as a civil engineer in the past. He published his findings in a series of articles in The Railroad and Engineering Journal from 1891 to 1893, which were then re-published in the influential book Progress in Flying Machines in 1894.[6]