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.


Learn More About the B-Models!

Sonex Aircraft News | Sonex Builder News
Sonex Aircraft News:

B-Model Kits and Xenos Quick Build Kit Added to FAA NKET Eligible Kit List

Sonex Aircraft is pleased to announce that FAA National Kit Evaluation Team (NKET) checklists for the new Sonex and Waiex B-Model kits, and the new Xenos Motorglider Quick Build Kit have been added to the FAA's online list of eligible kits! Listing on the FAA's kit list signifies that an aircraft kit may allow an amateur builder to meet the major portion, or "51 percent rule," requirement of 14 CFR section 21.191(g) for experimental/amateur-built aircraft.

More information about the NKET process, along with links to our current kit checklists may be found on our Aircraft Certification Page.

Builders use these checklists to simplify the airworthiness inspection process for their completed aircraft. NKET checklists are especially important for kit sales in many foreign markets, where U.S. Experimental Amateur Built rules are often used as boilerplate definitions of their own regulations.

Read More about the B-Models

Learn More About Xenos Quick Build Kits

Jabiru 2200 Mounts Fit UL-260-Series Engines!

Jabiru 2200/UL-260 Engine Mounts:

Did you know: Sonex Aircraft Jabiru 2200 engine mounts for Legacy Sonex and Waiex airframes also fit the popular UL Power UL-260 series of engines? A study conducted with UL Power representatives and Sonex engineers during AirVenture 2016 confirmed that Sonex engine mounts for the Jabiru 2200 engine will fit UL-260 series engines without interference.

During the conclusive study, engine mounts (both standard gear and tricycle gear) were fitted to demo engines from the UL Power AirVenture exhibit at Sonex factory headquarters. Further study revealed that the installation weight of UL-260 engines fit perfectly within the structural capabilities of existing Jabiru 2200 engine mounts.

Because AeroVee and AeroVee Turbo engines have won favor over the Jabiru 2200 in the Sonex fleet in recent years, we have several 2200 engine mounts available at clearance prices while supplies last:

  • SNX-P11-08 Std-Gear Jabiru 2200 Engine Mount: $1,200 (regularly $1,919.50)
  • SNX-P12-08 Tri-Gear Jabiru 2200 Engine Mount: $1,000 (regularly $1,579.50)

We only have Qty 5 each available, so Order Today!

Learn More About UL Power Engines!

New AeroConversions Accessories Available!

New Hollow Spinner/Crushplates:

ABS Molded Fairings:

ESF Foam Cubes:

Sonex Aircraft is excited to announce three new accessories from our AeroConversions product line that can be used in Sonex Aircraft, or any other experimental!

Hollow Spinner/Crushplates:
Sonex Aircraft's trademark machined Spinner/Crushplates are now manufactured with a new hollow design, cutting weight in half! Our spinners double as propeller crushplates and are machined from solid aluminum billet. Available in two prop hub pattern options fitting AeroVee, Jabiru/CAMit, Rotax, UL Power engines and more, AeroConversions Spinner/Crushplates can be used on a wide variety of experimental aircraft.

ABS Molded Fairings:
A new feature in B-Model and SubSonex kits, AeroConversions ABS Molded Fairings are made from .063" thick white ABS plastic, are durable, lightweight, can be installed easily and can accept paint with high-quality results. AeroConversions ABS Fairings can be used on any experimental aircraft. Cable, pushrod, counterweight and other fairings available and prices start at only $3.90!

ESF Foam Cubes:
Used primarily in the SubSonex Personal Jet, we are making Explosion Suppressant Foam (ESF) Cubes available for any experimental aircraft builder interested in reducing fuel sloshing/surging and improving fire/explosion resistance. Watch the ESF Video! Approximately 2.52 cubes are used per gallon and ESF Cubes are sold per cube at $1.50 each!

All of these great new accessories and more can be found on the AeroConversions Accessories page!

Learn More About AeroConversions Products!

AirVenture 2016 a Great Show for Sonex!

The new B-Model was the star of the Sonex Aircraft booth at AirVenture 2016!

Many took the opportunity to try-on the new B-Model and experience its enlarged cockpit space!

The AeroVee, AeroVee Turbo and other AeroConversions products were also popular items at AirVenture 2016.

As-always, the SubSonex Personal Jet attracted a lot of attention at AirVenture.

Sonex Aircraft, LLC once again exhibited at EAA AirVenture Oshkosh at our home base, Wittman Regional Airport in Oshkosh, WI! The 2016 event was a great show for Sonex Aircraft!

Events kicked-off with the annual Sonex Open House and Homecoming Fly-In at the Sonex Aircraft factory. Although weather hampered early AirVenture arrivals this year, several customer aircraft still made it to the Sunday event.

The Waiex B-Model prototype was on-display for the first time at AirVenture, while the tri-gear Sonex B-Model prototype could be seen in-progress at the Sonex Factory. Response to the new B-Model design continues to be tremendous. Many attendees got a chance to try-on the enlarged cockpit and check-out the enhanced B-Model features. Just like the B-Model's Sun 'n Fun debut, feedback from many prospective builders at AirVenture indicated that B-Model design changes addressed everything they wished the Sonex line of aircraft had in the past, renewing their interest in a Sonex or Waiex project.

The SubSonex Personal Jet was once again very popular at AirVenture 2016, with many new prospective jet builders stopping by to check-out this amazing aircraft. Bob Carlton flew the SubSonex in airshow performances at AirVenture again this year, including the Wednesday and Saturday night airshows. His outstanding performances drove large numbers of people to the Sonex booth spaces to see the SubSonex. Our special thanks to Bob and Laurie Carlton of Vertigo Airshows for once again showing-off the SubSonex and all of its capabilities so spectacularly.

Daily Sonex factory tours were held at AirVenture again this year with capacity crowds, and forums were presented on all subjects Sonex and AeroConversions during the week. Sonex held its annual Hangar Party on Monday night of the show again this year as a "Thank You" to all Sonex Aircraft customers, supporters and family members.

Sonex Aircraft held a joint press conference with Uniworld, LLC at AirVenture, announcing plans for expanded sales to China and efforts to make kit aircraft a larger part of the growing general aviation infrastructure in the country. The announcement received a lot of attention from attendees and press at the show!

AirVenture attendees also had an opportunity to see new Sonex Aircraft hardware kits provided by WBParts. With WBParts SmartKits, hardware will now be a part of Sonex Aircraft kit packages!

If you missed us at AirVenture 2016, be sure to visit our factory anytime, and make plans to visit AirVenture next summer!

Despite weather, the Sonex Aircraft Open House and Homecoming Fly-In was well-attended again in 2016.

Francis Chao of Uniworld, LLC, a trailblazer of GA growth in China, speaks to the AirVenture 2016 press corps about Sonex Aircraft's developing role in the emerging market.

A factory prototype Sonex Sport Trainer was on-display Uniworld's China Pavilion all week, celebrating and promoting our new efforts in the Chinese aviation marketplace.

Whether looking at kit aircraft or watching airshow, the view is always best at the Sonex Aircraft booth!

John Monnett speaks to visiting Wisconsin legislators about the role of Wisconsin businesses like Sonex in the GA economy.

Sonex Factory Tour attendees got to see the inside operations at Sonex, and on Saturday they even got to see Bob and Laurie Carlton rack pyro for the SubSonex Fire & Lights Night Airshow!

Photographer Jerry Cummings once again captured a stunning time-lapse photo of the SubSonex Fire & Lights Night Airshow, performed by Bob Carlton!

During the Tuesday afternoon Airshow, Bob Carlton performed his full aerobatic display with the SubSonex. It was a spectacular show, and smooth air allowed Bob to exceed 295 mph on his high-speed pass!

Read More about the B-Models!

Read More about the SubSonex Personal Jet!

Sonex Provides Kit Hardware with WBParts!

WBParts Hardware Kits
for Sonex Aircraft:

Sonex Aircraft, LLC is excited to announce a new relationship with aircraft hardware distributor WBParts to provide the company’s SmartKits hardware packages with Sonex Aircraft airframe kits! WBParts SmartKits are provided in sturdy impact-resistant plastic toolbox drawer assemblies that are organized, labeled and filled by hardware type and include QR codes for easy re-ordering.

SmartKit hardware packages are available for Onex, Xenos and legacy model Sonex and Waiex aircraft in standard gear and tri-gear varieties. Quick Build Kit hardware packages are also available (Xenos Quick Build hardware coming soon). SmartKits for the new Sonex and Waiex B-Models will be available upon completion of B-Model hardware lists. Effective July 14th, applicable Complete Airframe Kit, Kit-Minus-Tail Package and Quick Build Kit prices will include WBParts SmartKit hardware packages, and SmartKits can also be purchased separately from the Sonex Web Store.

SmartKits bring Six-Sigma / Lean Manufacturing principles to the kit builder's hangar. SmartKits save time and organization, and shortens overall time to completion. Genuine component parts are in each SmartKit and provide manufacturing trace. SmartKits will keep your parts more organized, giving a more enjoyable and fulfilling kit-building experience. Best of all SmartKits can increase the ease of FAA Airworthiness inspection because they incorporate FAA Safety Values.

See Today's Official Press Release!

Read More Sonex Aircraft News!

Sonex Aircraft News | Sonex Builder News
Sonex Builder News:

Great Southern Sonex Gathering Now a 3-Day Camping Event at Critter's Lodge!

Exciting News:  This year the 14 Annual Great Southern Sonex Gathering will be part of a three day campout, November 4th through 6th at Critter’s Lodge (Dillard Ranch) near Centerville, Texas. Don’t miss this one. It will be fun! Download Event Flyer

Find More Sonex Builder Events!

Sonex First Flight: William Allen

Congratulations to William Allen of Louisville, Kentucky, whose VW powered, tri-gear Sonex (S/N 1359) flew for the first time on July 10th! "Plane and VW performed great!" writes William. "Transition training in June also made the first flight less tense with a special thanks to Bob Helm for all of the coaching from the right seat during my training/flight review over a weekend; with thanks to Kerry and Joe [Sonex Tech Support] also for all those questions answered during the build. Big thanks to my wife for lending the sometimes needed additional hand - she is now fully cleco and pop rivet qualified - and for making my upholstery. And special thanks also to all the members of EAA Chapter 110 in Louisville for all of their help along the path of this journey." Gold Wings are on the way to William!

View the Latest Sonex Aircraft Completions

Onex First Flight: Carl Eldridge

Congratulations to Carl Eldridge of Wharton, Texas, whose UL350is powered, standard gear Onex (S/N ONX0172) flew for the first time on February 2nd! "Just completed 52 hours of flight time on my Onex," writes Carl. "This is one great flying aircraft, fast, quick and fun. N-326-X is just out of the paint-shop and looking great. The engine is UL Power, [130 hp UL350is] so it is one of the first of it's kind." Gold Wings are on the way!

View the Latest Sonex Aircraft Completions

New Events Added to Builders' Events Calendar!

New Events have been added to the Sonex Builders' Events Calendar on our web site!

Grass roots Sonex builder events are a great way to network and see other builders' projects.

Submit your own event!

Read More Sonex Builder News!

Complete Info Pack:


Onex Kit (base price):

Build and Fly for $28,380*

Sonex B-Model Kit (base price):

Build and Fly for $36,329*

Waiex B-Model Kit (base price):

Build and Fly for $36,329*

Xenos Kit (base price):

Build and Fly for $36,400*

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:





Click to verify BBB accreditation and to see a BBB

| Home | Choosing Sonex | Company | Kits | Support | Builder Network | Sport Pilot | Ordering | Press Room |

© 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