Sonex -- The Sport Aircraft Reality Check!
AeroConversions Accessories


Our Mission at Sonex Aircraft:

Sonex Aircraft, LLC is committed to providing the recreational aviation community innovative, cost-effective and efficient aircraft kits, powerplants, and accessories and supporting them with industry-leading customer service.

In addition, Sonex provides leadership to the grass-roots homebuilt community to protect the experimental-amateur built rules and cultivates new pilots and airplane builders through educational efforts.

Our Vision:

To continue the Sonex Aircraft heritage of Product Innovation, Affordability, Simplicity, Versatility, Performance, Engineering, and Quality and to expand these themes into a broader aviation marketplace.


Sonex Aircraft News | Sonex Builder News
Sonex Aircraft News:

New Insurance Option for Sonex Aircraft

Sonex Aircraft is pleased to announce that First Flight Insurance Group has approved Sonex, Waiex and Onex aircraft models for their USUA Insurance Program!

The USUA insurance program offers 3rd party liability insurance and accepts orientation flight time in-type with regular pilots (no requirement for flight time with a CFI), or time in similar handling aircraft. The program has an affordable fixed annual premium, there is no charge for a second pilot on the policy, and no charge for adding additional insured landowners.

First Flight Insurance Group's USUA program is a great option to serve many of our customers’ insurance needs in our most-popular aircraft models, especially during Phase I of kit aircraft operating limitations.

Learn More About Insurance for Sonex Aircraft!

AirVenture 2017 A Record-Breaking Show!

AirVenture 2017 is in the books as a record-setting year for EAA in-terms of attendance, aircraft activity and attractions. The show didn't disappoint for Sonex Aircraft either!

Sonex enjoyed great attendance for it's Open House and Homecoming Fly-In and throughout the week at the Sonex AirVenture exhibit booth.

AirVenture 2017 kicked-off on Sunday (a day early) for the traditional Sonex Aircraft Open House and Homecoming Fly-In event. Many customer aircraft were in attendance, along with drive-in traffic with both current and prospective Sonex Aircraft builders and pilots. As is tradition, the event wrapped-up on Sunday afternoon with a mass taxi "arrival" of Sonex aircraft across the airport to AirVenture grounds. In addition to the customer aircraft that arrived for the Homecoming Fly-In, many more customer Sonex aircraft arrived throughout the week, parked either in the homebuilt display parking area adjacent to the Sonex exhibit booth, or in the homebuilt camping area.

A record number of Onex aircraft were flown-in to AirVenture 2017, with five customer Onex's on-display at the show. The Onex was also a very popular model for prospective customers this year. AirVenture 2017 also marked the first customer-built SubSonex Personal Jet to ever be displayed at AirVenture Oshkosh. John Corneal's beautiful SubSonex was exhibited in the Homebuilders Hangar at AirVenture and took home a Kit Champion - Bronze Lindy award. Congratulations to John!

Sonex-B, Waiex-B Onex, Xenos and SubSonex factory prototype aircraft were all on-display in the Sonex exhibit booth# 622 in the North Aircraft Display Area, along with AeroVee and AeroVee Turbo engines. The factory prototype Sonex-B made it's public debut, showing off the Sonex tail configuration and tricycle gear congiruation with all of the popular new B-Model features. The Sonex-B factory prototype also sports the dual screen Dynon Skyview HDX Quick Panel system. Interest in the new Xenos-B configuration was also high at the show. Customers also stopped-in to see the new AeroConversions Rotax Engine Mount Attach Bars, available for Rotax installation on any aircraft.

In addition to activies in the Sonex exhibit booth, Sonex factory tours held all week were very well attended, and several forum presentations were given by Sonex staff in the AirVenture forum buildings. Bob Carlton of Vertigo AirShows performed two afternoon airshows in the SubSonex JSX-2, along with the SubSonex Fire & Lights night pyro airshow on Wednesday night. Bob's Super Salto jet powered sailplane also made a return to AirVenture with a night show on Saturday night.

Our sincere thanks go to all current and prospective customers, Sonex staff and EAA staff & volunteers for making AirVenture Oshkosh 2017 such a huge success for Sonex Aircraft, LLC!

The crowd of Sonex Open House and Homecoming Fly-In pilots, staff and families pose for the annual AirVenture group picture.

Factory and customer aircraft line-up for the mass-taxi "arrival" from the Homecoming Fly-In to AirVenture grounds on Sunday before the show.

The Sonex exhibit booth at AirVenture 2017!

Bob Carlton of Vertigo Airshows in-action with the SubSonex Personal Jet!

Congratulations to SubSonex s/n JSX0006 builder John Corneal for taking home a Kit Champion - Bronze Lindy Award!

See you at AirVenture 2018!

See the Sonex Events Calendar!

Sonex Offers Rotax 912-Series Engine Mounts for Legacy Aircraft; Rotax Attach Bars Available from AeroConversions Products!

Sonex Aircraft Rotax
Engine Mounts:

See All Pricing and

Due to popular demand, Sonex Aircraft is now offering Rotax engine mounts for legacy Sonex, Waiex and Xenos aircraft! Orders are now being accepted for engine mounts in both standard and tricycle gear configurations.

Additionally, machined Rotax Attach Bars are being offered by AeroConversions Products for use with custom Rotax 912 engine mounts on any aircraft. The AeroConversions Rotax Attach Bars were developed for B-Model and now in Legacy Sonex Aircraft, and eliminate the need for expensive and complex Rotax ring mounts and Rotax mount rubbers. As a bed mount system, AeroConversions Rotax Attach Bars bolt directly to Rotax 912-series engines and are designed to use simple AeroConversions AeroVee Shock Mount Rubbers, eliminating the complex shock mount geometry found in other Rotax bed mount systems.

Sonex Aircraft builders wishing to install a Rotax 912-series engine will need our new engine mounts, AeroConversions Rotax Attach Bars, AeroVee Rubber Shock Mounts, and a 1-3/8" prop hub extension (Sonex recommends Saber Mfg. PN 1.375x5 Rotax 912 or equivalent.)

See Our Official Press Release!

New: Xenos-B Conversion Kits Available!

Sonex Aircraft is excited to announce that Xenos B-Model Conversion Kits are now available! With Xenos-B Conversion Kits, owners of legacy Xenos kits can convert their projects to the new B-Model configuration for under $10,000 (base price).

The Xenos-B combines all of the great enhancements of the Sonex and Waiex B-Models with the outstanding motorglider performance and value of the Xenos:

  • More Room and Comfort
  • More Panel Space
  • More Fuel
  • More Engine Choices
  • More Standard Features
  • Less Build Time!
  • Same Great Flight Characteristics!

Xenos B-Model
Conversion Kits:

See All Pricing and

PDF Order Form

Learn More about the Xenos B-Model!

See SubSonex Assembly with Vertigo Airshows!

Did you know: the SubSonex Personal Jet can be packaged in a trailer for easy transport? In this video from OnBoard Images, watch a time lapse of Bob and Laurie Carlton of Vertigo Airshows unpack and assemble the SubSonex for their aerobatic performance at the Travis AFB Open House Air Show.

You can see the SubSonex perform day and night airshows on our YouTube channel, and at an air show near you!

Learn More About the SubSonex!

Introducing Sonex Aerospace, LLC: UAS Mfg Company to Debut at XPONENTIAL 2017

Sonex Aircraft, LLC is excited to unveil its newest business unit at the AUVSI XPONENTIAL 2017 convention in Dallas, TX this week: Sonex Aerospace, LLC. Sonex Aerospace is a design, development and manufacturing firm focused on the UAS marketplace and the exploration of other new market opportunities in aerospace. Via a Business Collaboration Agreement with Navmar Applied Sciences Corp. (NASC), Sonex Aerospace is currently developing the Teros Group 4 UAS, the Tigershark Block 4, and the SubSonex Twinjet UAS. The Teros prototype is being displayed at XPONENTIAL 2017, while renderings of the Tigershark Block 4 and SubSonex TwinJet UAS are being displayed in the NASC exhibit booth.

AUVSI XPONENTIAL 2017 is the largest trade show for the unmanned systems and robotics industry. More than 7,000 industry leaders and professionals from more than 55 countries are expected to attend XPONENTIAL at the Kay Bailey Hutchison Convention Center in Dallas from May 8 to 11.

Read Today's Official Press Release!


Sonex Aircraft in the News:
B-Models Featured in EAA Sport Aviation

The Sonex Aircraft B-Models are featured in the May issue of EAA Sport Aviation Magazine! "Bigger and Better: The B-Model is Sonex's Answer" by Megan Esau discusses the features and rationale behind the latest versions of our popular Sonex and Waiex aircraft designs, and also covers the new Xenos-B Motorglider, which is now available for shipping. Read the Article online Now!

EAA has also released a video about the B-Model featuring John Monnett. See our complete B-Model video playlist on the Sonex Aircraft YouTube channel!

The Sonex Aircraft B-Models offer many enhancements over the original legacy designs and are available in Sonex-B and Waiex-B configurations, along with the newly available Xenos-B Motorglider! B-Model features include:

  • More Room and Comfort
  • More Panel Space
  • More Fuel
  • More Engine Choices (engine mounts available for AeroVee/AeroVee Turbo, Jabiru 3300, UL Power and Rotax 912-series)
  • More Standard Features
  • Less Build Time!
  • Same Great Flight Characteristics!

Learn More about the B-Models!

Learn about the New Xenos-B!

Read More Sonex Aircraft News!

Sonex Aircraft News | Sonex Builder News
Sonex Builder News:

Onex First Flight: Stephen Nelson

Congratulations to Stephen Nelson of Springfield, South Australia, whose Standard-Gear, VW Powered Onex (S/N ONX0138) flew for the first time on September 8th! This is Stephen's second Sonex Aircraft, following Xenos S/N X0035, which he still owns and flies. "Performance better than expected and handling delightful," writes Stephen. "Nice to get back into an aircraft where you sit on the centreline!" Gold Wings are on the way!

View the Latest Sonex Aircraft Completions

Sonex First Flight: Jason Flint

Congratulations to Jason Flint of West Lakeland Minnessota, whose Standard-Gear Sonex (S/N 1655) flew for the first time on September 8th! "N513CF was nearly flawless in her first flight," writes Jason. "Many thanks to Sonex Aircraft for making available a kit that's so easy (and fun!) to build and fly." Gold Wings are on the way!

View the Latest Sonex Aircraft Completions

Onex First Flight: Tobie Erasmus

Congratulations to Tobie Erasmus of Thabazimbi, Limpopo South Africa, whose Tri-Gear, VW powered Onex (S/N ONX0144) flew for the first time on August 26th! "The first flight was uneventful and the aircraft performed great," writes Tobie. "One turn up-trim was dialed in to cruise. She is easy to fly and land. I would like to thank my mentors Dudley Foster and Jonathan Low for always being there to advise, support and encourage me. Morrie, Stan and Conrad thanks for your assistance and tips. WOW WHAT A RUSH." Gold Wings are on the way to Tobie!

View the Latest Sonex Aircraft Completions

Sonex Builder Events: 9th Annual Northeast Sonex Fly-In Coming-up September 9th!

The organizers of the Northeast Sonex Fly-In are busy preparing for their 9th Annual event, coming up soon on September 9th!

If you have an interest in the Sonex aircraft; if you just like airplanes and enjoy hanging around airports; if you live in the New England/Northeast area, then this event is for you!

This event was conceived because there are now nearly a dozen or more flying Sonex/Waiex/Xenos/Onex aircraft in the area, and even more active builders, as well as those considering building.

Some Sonex owners may be willing to give rides, which is a great opportunity for current and would-be builders to try out the ride!

See the official event web site!

Find More Sonex Builder
Organizations and Events!

Xenos First Flight: Larry Taylor

Congratulations to Larry Taylor of Penticton, British Columbia Canada, whose AeroVee powered, Xenos Motorglider (S/N X0063) flew for the first time on July 24th! This is the first Xenos to be reported to Sonex as having been completed in Canada! Gold Wings are on the way to Larry!

View the Latest Sonex Aircraft Completions

Sonex First Flight: Joseph Nelsen

Congratulations to Joseph Nelsen of Gunter, Texas, whose AeroVee powered, standard gear Sonex (S/N 1510) flew for the first time on July 20th! "Initial lift off was spectacular!" writes Joseph of the AeroVee powered aircraft's performance on his 2,700 foot grass runway, "Both takeoff and landing were described by my ground crew of Clint Murphy, Bob Demunck, Steve Rief, and Jimmy Finney as Non events! Thanks guys!!! It is a great honor to finally understand that this very nimble aircraft is going to be so much fun to get to know better, and I too, now have 'Big Johns' Sonex grin as shown so often in the ads!" Gold Wings are on the way to Joseph!

View the Latest Sonex Aircraft Completions

Onex First Flight: Jonathan Low

Congratulations to Jonathan Low of Westmead, Durban, KwaZulu-Natal South Africa, who caught-up with us recently about the December 27th first flight of his Jabiru 3300 powered, standard gear Onex (S/N ONX0142)! "This was my second Onex build," writes Jonathan. "A Jabiru 3300 was installed and flies great. Squeezed in without cowl modification. Cruises 150 mph TAS at 2650 RPM (170 mph @ 2950 rpm) with 54” x 64” Sensenich propeller. Climbs at 2450 ft AGL, 100 MPH at 1100 fpm. Fuel consumption at cruise 17L/hour." Gold Wings are on the way!

View the Latest Sonex Aircraft Completions

Read More Sonex Builder News!

Complete Info Pack:


Onex Kit (base price):

Build and Fly for $28,699*

Sonex B-Model Kit (base price):

Build and Fly for $36,506*

Waiex B-Model Kit (base price):

Build and Fly for $36,827*

Xenos B-Model Kit (base price):

Build and Fly for $40,266*

AeroVee Engine Kit:


Financing Available!

*View Our Complete Cost Worksheet!


Build a Sonex Aircraft in Your School!

Through the Sonex Education Initiative, your school, EAA chapter or community organization can receive 10% discount incentives on any Sonex Complete Airframe Kit or AeroVee Engine Kit! Aviation metalworking "Starter Kit" packages are also available.

To find out more, see the official Sonex Education Initiative web site:





© Copyright Sonex Aircraft, LLC -- All Rights Reserved

Subscribe to Sonex and AeroConversions Mailing Lists and News Feeds  


B-Model Home AeroConversions Home Sonex Home Sonex Home