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Kit Pricing Details


See the new Sonex and Waiex B-Models!

Sonex Legacy "A-Model" is Discontinued: If you already own Sonex plans, you may still purchase sub-kits to finish your build. See Legacy "A-Model" Sonex Sub-Kits on our Web Store.



The Original Reality Check

About the Aircraft
SONEX is a basic and economical all metal two place monoplane. Designed to meet the needs of the European and Domestic sport aircraft markets, it can incorporate various light weight contemporary engines of 80 to 120 hp (engine package weight of less than 200 lbs.), and is perfectly suited to the new US Sport Pilot/LSA regulations. The three recommended powerplants include the 2180cc Volkswagon, 2200 Jabiru, and 3300 Jabiru. Outstanding performance is achieved through its clean aerodynamic shape and simple, light weight construction.

The Sonex Plans contain many options, including a tailwheel or tricycle landing gear along with a center or dual stick. Motor Mount drawings are supplied for all three recommended powerplants.

Sport Trainer
The Sonex is now available in a center-control Sport Trainer configuration.

Find out more about the Sonex Sport Trainer!

Sport Acro
Sonex Aircraft, LLC is currently developing the Sonex Sport Acro configuration for entry-level aerobatic competition.

Find out more about the Sonex Sport Acro!

About the Kit
The Sonex can be built from scratch using plans, or using our complete kit, which includes many pre-fabricated precision parts.

Find out more about the complete Sonex kit!

18' 1"
Wing Span:
Wing Area:
98.0 sq. ft.
Tail Configuration:
Tail Height (Std Gear): 56"
Tail Height (Tri-Gear): 74"
Tail Width--with tail tips:
(interior width required for enclosed trailer)
Main Gear Width: 71" (with wheel pants)
Air Foil:
Primary Structure:
6061 aluminum
Cockpit Width:
40 in. More Info
Fuel Capacity:
16 US Gal.
Stall Speed (full flaps):
40 mph [64 km/h]
Stall Speed (clean):
46 mph [74 km/h]
Max Flap Extended Speed (Vfe):
100 mph [161 km/h]
Maneuvering Speed:
125 mph [201 km/h]
Never Exceed Speed (Vne):
197 mph [317 km/h]
Performance 80 hp 2180 AeroVee 80 hp Jabiru 120 hp Jabiru

Empty Weight

620 lbs. 620 lbs. 620 lbs.
Range 550 miles 550 miles 400 miles
Cruise Speed @ Sea Level* 130 mph 130 mph 135 mph
Cruise Speed @ 8000 ft (TAS) 150 mph 150 mph 170 mph
Power Loading (GW/HP) 13.125 13.125 9.583
T.O. Distance 400 ft 400 ft 250 ft
Landing Distance 500 ft 500 ft 500 ft
Service Ceiling (calculated) 16,000 ft 16,000 ft 23,000 ft
Utility Category 80 hp 2180 AeroVee 80 hp Jabiru 120 hp Jabiru
Gross Weight 1100 lbs 1100 lbs 1150 lbs
Baggage (Max) 40 lbs 40 lbs 40 lbs
Useful Load 480 lbs 480 lbs 530 lbs
Rate of Climb 500-900 fpm 500-900 fpm 1000-1400 fpm
Positive Load Factor +4.4 Gs +4.4 Gs +4.4 Gs
Negative Load Factor -2.2 Gs -2.2 Gs -2.2 Gs
L/D 11:1 11:1 11:1
CG Limits 20-32% Wing Chord 20-32% Wing Chord 20-32% Wing Chord
Aerobatic Category 80 hp 2180 AeroVee 80 hp Jabiru 120 hp Jabiru
Gross Weight - Aerobatic 950 lbs 950 lbs 950 lbs
Baggage (Max) 10 lbs 10 lbs 10 lbs
Rate of Climb 800-1100 fpm 800-1100 fpm 1500-2000 fpm
Positive Load Factor +6.0 Gs +6.0 Gs +6.0 Gs
Negative Load Factor -3.0 Gs -3.0 Gs -3.0 Gs
CG Limits 23-29% Wing Chord 23-29% Wing Chord 23-29% Wing Chord

 *Note: All Models meet FAA Sport Pilot Regulations at maximum continuous power at Sea Level, as required. Read More...

Sonex Aircraft, LLC Supported Engines include AeroVee 2180 (80hp), Jabiru 2200 (80hp), and Jabiru 3300 (120hp). Read More...

Available Sonex Configurations
Landing Gear:
  • Standard Gear (tail dragger)
  • Tricycle Gear
  • Center Stick
  • Dual Stick
  • AeroVee 80hp
  • Jabiru 2200 80hp
  • Jabiru 3300 120hp

Sport Trainer:

  • AeroVee Engine
  • Tricycle Gear
  • Dual Stick
  • Center Control Column

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