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Maintaining Your Aircraft: Steadfast and True

The Lycoming O-320 powers a significant fleet of airplanes.

A Lycoming O-320 powered American Champion Aircraft Citabria Explorer 7GCBC. [FLYING file photo]
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Key Takeaways:

  • Lycoming Engines, a long-standing industry leader based in Williamsport, Pennsylvania, has been a cornerstone of general aviation engine manufacturing since 1929.
  • Its iconic O-320 engine, first introduced in 1953, is a robust, four-cylinder powerplant widely used across certified aircraft, flight schools, and experimental kits.
  • Valued for its reliability, affordability, and versatility, the O-320 has been continually updated with innovations such as roller tappet technology and electronic ignition.
  • Maintaining O-320 engines, while generally straightforward, requires a thorough understanding of technical documents, and Lycoming offers a service school for comprehensive training.
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The town of Williamsport, Pennsylvania, may not be instantly recognizable to most. Some readers of FLYING Magazine may only fully understand its significance once I mention that it is the county seat of Lycoming County. Then it suddenly clicks. Yes, that Lycoming. Situated deep in the Pennsylvania Wilds Region, Williamsport is well known among the general public for hosting the Little League World Series each year. There is even a museum dedicated to Little League Baseball. Although the Lycoming factory may not make headlines, the company has quietly established itself as one of the cornerstones of general aviation. In an industry that has seen its fair share of entities rise and fall, the fact that Lycoming Engines not only still exists—but remains an industry leader—provides a testament to its brand.

The Lycoming factory has been producing aircraft engines in Williamsport, Pennsylvania, for the GA market since 1929. [Courtesy: Lycoming]

History

Founded in 1845 as the Demorest Manufacturing Company, Lycoming has called Williamsport home from the beginning. Charles Lindbergh’s transatlantic flight ignited the company’s aviation spark, and in 1929, Lycoming began producing aircraft engines. Since then,the company has delivered many variations of aircraft engines, but none are as iconic as the O-320.

Richard Scarbrough

Richard is a US Navy Veteran, A&P Mechanic, and Embry-Riddle Aeronautical University alumni. His experience ranges from general and corporate aviation to helicopters, business jets, and commercial airliners. Former owner of a 145 repair station, he currently has an aerospace product management role and is a member of the T-C-Alliance. Follow him on X (Twitter) at @RScarCo.

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