Sonex is excited to announce first flight of the Sonex Highwing! The flight took place on the evening of Monday, June 30 2025, piloted by Sonex Advisory Board member Joe Norris. The flight was kept brief due to a passenger-side door latch issue, however, all engine temperatures were in the green and the aircraft handled as-expected with only slight rigging adjustments needed. Weight & balance for the prototype is on-target with the aircraft currently at 816 lbs. empty. More flights will take place soon (with wheel pants and gear leg fairings installed) and we will be collecting and reporting performance numbers in the coming weeks. Stay Tuned via the Sonex Highwing Mailing List!

 

 

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Sonex Highwing
Kit Reservation Deposit: $500.00
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Deposits are refundable less a $50 Cancellation Fee.

Get yourself in line for a kit by placing a $500 Kit Reservation Deposit today. These deposits not-only get you a place in line amongst your fellow future Highwing builders, but also helps Sonex to plan for kit inventory needs. Kit Reservation Deposit Holders will be given the opportunity to turn their reservations into firm orders following the first flight tests of the prototype aircraft. Deposits are refundable minus a $50 cancellation fee. If you have any questions, please reach-out to us via our Contact Form.

Joe Norris gives a “thumbs up” after first flight of hte Sonex Highwing!

Mark Schaible and Joe Norris share a hearty designer/test pilot handshake.

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Sonex Highwing Estimated Specifications

Subject to change without notice

Specifications
Seats 2
Length 19′ 3.5″
Wing Span 26′ 2.4″
Wing Area 117.9 sq. ft.
Aerobatic (2-place) Wing Span 23′ 1.3″
Aerobatic (2-place) Wing Area 104 sq. ft.
Tail Height (Taildragger) 61.5″
Tail Height (Tricycle Gear) 80.5″
Tail Width w/Wing Tips 92.75″
Inboard Wing Section Width 89.5″
Main Gear Width with Wheel Pants 73.75″
Air Foil 64-415
Primary Structure 6061-T6 Aluminum
Maximum Fuel Capacity 30 US Gal.
Cockpit Width (Interior) 42″
Engines (100-130 hp)
  • AeroVee
  • Jabiru 3300
  • UL Power
  • Rotax 9-series
Estimated Stall Speed (clean) 50 mph
Design Cruise Speed (Vc) 159 mph
Estimated Maneuvering Speed (Va) 125 mph
Never Exceed Speed (Vne) 200 mph
Utility Category
Empty Weight (full span*) 820 lbs
Max Gross Weight 1500 lbs
Baggage (Max) 90 lbs
Useful Load (Including Fuel) 680 lbs
Wing Loading 12.7 lbs./sq. ft.
Power Loading
  • 100 hp: 15 lbs./hp.
  • 120 hp: 12.5 lbs./hp.
  • 130 hp: 11.5 lbs./hp.
Limit Load Factors +4.4 / -2.2 G
CG Limits 20-32% Wing Chord
Aerobatic Category
Empty Weight (short span*) 800 lbs
Max Gross Weight 1230 lbs
Baggage (Max) None
Useful Load (Including Fuel) 430 lbs
Wing Loading 11.8 lbs./sq. ft.
Power Loading
  • 100 hp: 12.3 lbs./hp.
  • 120 hp: 10.25 lbs./hp.
  • 130 hp: 9.5 lbs./hp.
Limit Load Factors +6 / -3 G
CG Limits 23-29% Wing Chord
Aerobatic Category (Limited)
Empty Weight (short span*) 800 lbs
Max Gross Weight 1340 lbs
Baggage (Max) 40 lbs. (or BRS installation)
Useful Load (Including Fuel) 540 lbs
Wing Loading 12.9 lbs./sq. ft.
Power Loading
  • 100 hp: 13.4 lbs./hp.
  • 120 hp: 11.2 lbs./hp.
  • 130 hp: 10.3 lbs./hp.
Limit Load Factors +5.5 / -2.5 G
CG Limits 23-29% Wing Chord

* Sonex Highwing features easily interchangeable wing tips for different span configurations.

Sonex Highwing is designed to take advantage of the new FAA MOSAIC rules for Light Sport Aircraft!

Specifications & Performance Subject to Change Without Notice.