Sonex Aircraft, LLC is an American kit aircraft manufacturer located in Oshkosh, Wisconsin, producing kits for four all-metal homebuilt monoplanes. The company was founded in 1998 by John Monnett, who has designed the Monnett Sonerai sport aircraft series, Monnett Monerai sailplane, Monnett Moni motorglider, and Monnett Monex racer. Monnett designs are displayed in the Steven F. Udvar-Hazy Center of the National Air and Space Museum near Washington D.C.
|Headquarters||Oshkosh, Wisconsin, United States|
|John Monnett (founder)|
Jeremy Monnett (CEO until his death in 2015)
Number of employees
In June 2018, John Monnett announced that he will retire and sell the company.
In 2013, the FAA National Kit Evaluation Team (NKET) approved fast-build "51% rule" versions of the Sonex, Waiex, and Onex.
|Model name||First flight||Number built||Type|
|Sonex||2000 (customer built)||500 by 2014||the original aircraft design, incorporating a low-wing design, seats two, and has a fast build time.|
|Waiex||almost identical to the Sonex, but features a Y-tail.|
|Xenos||2003||a motor-glider development of the Waiex with longer wings and the same engine selection as the other two Sonex models.|
|Onex||2011||a single seat aircraft with similar construction to a Sonex that will feature folding wings that allow the aircraft to be stored in a standard garage.|
|ESA||the Electric Sport Aircraft is a modified Xenos.|
|SubSonex JSX-1||Single seat, single engine jet protype|
|SubSonex JSX-2||2011||Single seat, single engine jet|
The Hornet's Nest is the research and development arm of Sonex LLC.
At AirVenture 2007, Sonex Aircraft announced a project to work on innovative technologies in aviation. The E-flight projects includes using an electric motor, ethanol-based fuels, and other power plant alternatives. In December 2010, an all-electric Waiex was test flown from Wittman field in Oshkosh, Wisconsin. The aircraft was flown with a 54 kW (72 hp) brushless DC electric motor, managed by a newly designed controller. Power is from a collection of 14.5 kW-hour lithium polymer batteries, giving the aircraft an endurance of one hour at low-speed cruise or 15 minutes of aerobatics. This was the beginning of the development of the Sonex Electric Sport Aircraft.
- O'Connor, Kate (6 June 2018). "Sonex For Sale". AVweb. Retrieved 8 June 2018.
- "Sonex Offers Quick-Build Kits Featuring Prebuilt Major Assemblies". Retrieved 22 July 2013.
- "Sonex reports 500th completion". Sport Aviation: 14. January 2015.
- Sonex Aircraft (2008). "Sonex - the Original Reality Check". Archived from the original on 2005-11-25. Retrieved 2008-10-09.
- Sonex Aircraft (2010). "Specifications - Tail Configuration: Y-tail". Archived from the original on 2006-04-05. Retrieved 2010-01-06.
- Xenos Archive, Xenos
- Sonex Aircraft (2008). "Xenos". Archived from the original on 2006-04-05. Retrieved 2008-10-09.
- E-Flight ESA
- "Sonex Aircraft and Navmar Applied Sciences to Collaborate on UAV Design". Retrieved 26 June 2015.
- "Another Secret Is Out". Retrieved 2007-07-24.
- "Sonex electric-powered Waiex makes first flight". Retrieved 6 December 2010.
- Pew, Glenn (December 2010). "Sonex Flies Electric Airplane". AvWeb. Retrieved 6 December 2010.
- "Sonex Aircraft Hornet's Nest Research and Development". Retrieved 2011-10-21.