The Sonex, Waiex and Xenos are a family of  lightweight, metal, low-wing, two seat homebuilt aircraft.
Kits are produced and marketed by Sonex Aircraft, a small manufacturer based in Oshkosh, Wisconsin.
By 2014, 500 customer built aircraft had been completed.

The Sonex can also be built from plans.

Company founder, John Monnett was approached by an Italian business looking for an aircraft that would meet their Microlight category.
A variation of Sonerai was initially proposed to meet the 40 mph minimum flight speed requirement.
Eventually a clean-sheet design was built around a Jabiru or VW engine installation with similar all-aluminum box fuselage construction as the Monnett Moni.
The Sonex can accept various lightweight – less than 200 lb (91 kg) – engines of between 80 to 130 hp (60 to 97 kW).

The Sonex, Waiex and Xenos all qualify as American experimental light-sport aircraft (ELSA).
The Sonex, Waiex and Xenos are a family of  lightweight, metal, low-wing, two seat homebuilt aircraft. Kits are produced and marketed by Sonex Aircraft, a small manufacturer based in Oshkosh, Wisconsin. By 2014, 500 customer built aircraft had been completed.
The Sonex can also be built from plans.
Company founder, John Monnett was approached by an Italian business looking for an aircraft that would meet their Microlight category. A variation of Sonerai was initially proposed to meet the 40 mph minimum flight speed requirement. Eventually a clean-sheet design was built around a Jabiru or VW engine installation with similar all-aluminum box fuselage construction as the Monnett Moni. The Sonex can accept various lightweight – less than 200 lb (91 kg) – engines of between 80 to 130 hp (60 to 97 kW).
The Sonex, Waiex and Xenos all qualify as American experimental light-sport aircraft (ELSA).
Sonex Aircraft Sonex