First flight of the Sonex Highwing on June 30, 2025 [Credit: Sonex Aviation]
Key Takeaways:
Sonex Aviation, which had recently announced its closure due to financial hardship, has been acquired by ON Capital Inc., led by Stephen Osborne, and is officially back in business.
The new ownership plans to aggressively invest in R&D, accelerate product development, scale manufacturing, and enhance the builder experience, with tail kits resuming shipment this month.
The acquisition is endorsed by Sonex founder John T. Monnett Jr., and former owner Mark Schaible will remain as lead designer, committing to the brand's legacy and customer support.
Three weeks ago, the Oshkosh, Wisconsin-based company announced it was closing due to financial hardship. On May 1, Sonex announced all assets of Sonex Aircraft, including the Sonex Aerospace and AeroConversions lines, have been acquired by ON Capital Inc., led by Stephen Osborne.
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Meg Godlewski has been an aviation journalist for more than 24 years and a CFI for more than 20 years. If she is not flying or teaching aviation, she is writing about it. Meg is a founding member of the Pilot Proficiency Center at EAA AirVenture and excels at the application of simulation technology to flatten the learning curve. Follow Meg on Twitter @2Lewski.
![First flight of the Sonex Highwing on June 30, 2025 [Credit: Sonex Aviation]](https://www.flyingmag.com/wp-content/uploads/2026/05/Hignwing-First-Flight-063025-487A8192-e1751396186531.jpg)
