First flight of the Sonex Highwing on June 30, 2025 [Credit: Sonex Aviation]
Key Takeaways:
Sonex Aviation, which had previously announced its closure due to financial hardship, has been acquired by ON Capital Inc., led by Stephen Osborne, and is now back in business.
The new ownership is committed to revitalizing the brand through aggressive investment in R&D, accelerated product development, and scaled manufacturing to meet demand.
Production has resumed, with tail kits shipping this month and full kits expected by midsummer, and the acquisition has the endorsement of Sonex founder John T. Monnett Jr., with former lead designer Mark Schaible remaining in his role.
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)
