First Customer-Built Onex Flies

Sonex Aircraft announced that the first customer-built example of its new Onex single-place, folding-wing, aerobatic sport aircraft has flown. Bill Fisher of Jackson, Tennessee, piloted his AeroVee powered, standard gear Onex for the first time on May 10. Fisher received the fourth Onex kit from the company, shipped last summer.

The Onex is designed to offer an economical way to build and fly a sport aircraft. The folding-wing design means the plane can fit into a garage or share a T hangar with other aircraft, and can be trailered on local roads. The wing panels are easily removed for trailering at highway speeds.

The Onex follows Sonex design and engineering principles in offering a simple, robust kit aircraft capable of squeezing performance out of lower powered engines, the company says. Like all other Sonex aircraft, the Onex is designed for use with the AeroConversions AeroVee engine, which is a perfect fit for the Onex, offering both performance and economy.

The Onex complete airframe kit and sub-kits are the most advanced yet produced by Sonex, the company says, offering more pre-fabricated parts and matched-hole tooling. Onex kit builders can get their aircraft flying for as little as $25,299.

For more information, visit or call 920/231-9297.


KITPLANES Editor Mary Bernard began her career in aviation journalism in 1998 and has worked in publishing for more than 15 years.

One Reply to “First Customer-Built Onex Flies”

  1. I am interested in the folding wing concept and I would like to see it incorporated in more kit build plans. Also, I wonder about a folding wing mod to existing kits or older factory built small aircraft. It seems the manufacturers are missing something perhaps.

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