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"I think John Monnett and company have nailed it with this aircraft design."


Kit Pricing Details

Xenos Motorglider
The Motor Glider Reality Check

About the Aircraft
The XENOS follows in the Monnett tradition of bringing the cost of motor gliding to a highly affordable level. Using the same cost-effective and easy-to-build construction techniques and materials of the Sonex and Waiex, the Xenos offers another Reality Check for the soaring world. The Xenos comes standard with utility wing tips that can be easily removed to fit inside a 40 foot hangar, and can be quickly interchanged with optional aerobatic wingtips.

The Xenos can either be flown as a Sport Pilot/LSA, or it can be flown by pilots that hold a glider rating with a self-launch glider endorsement. The Xenos can be flown as a powered aircraft, a self-launched glider that soars with the engine off, or it can motor-soar over great distances with incredible fuel economy.

About the Kit
The Xenos is only available in kit form. The Xenos complete kit includes many pre-fabricated precision parts.

Find out more about the complete Xenos kit!

Available Configurations
Landing Gear:
  • Standard Gear (tail dragger)
  • Dual Stick
Engine Options:
  • AeroVee (80 hp)
  • Jabiru 3300 (120 hp)

Xenos Development Archive
The long-awaited Xenos motorglider has been developed over a period of years by Sonex Aircraft, LLC and the progress of Xenos development, including Wing Load Test Documentation, has been preserved in this archive.

Read the Xenos Development online Archive

Flight Test Data

Read the Xenos Stall/Spin Flight Test Data by professional test pilot Roger Tanner.

Xenos Certification Tips from EAA
Find out how to properly register your Xenos as a motorglider with the FAA.

 Buy Your Xenos Kit Today!

Xenos Kits:
See All Pricing and

PDF Order Form

The Bottom Line: What will my project cost?

19' 9"
Wing Span (Utility):
45' 8"
Wing Span (Aerobatic, solo):
39' 4"
Wing Area (Utility):
158 sq ft
Wing Area (Aerobatic, solo):
144 sq ft
Tail Configuration:
Tail Height: 59"
Tail Width--with tail tips:
(interior width required for enclosed trailer)
Main Gear Width: 71" (with wheel pants)
Primary Structure:
6061 Aluminum
Cockpit Width:
40 in. More Info
Fuel Capacity:
16 US Gal
Stall Speed (clean):
44 mph [71 km/h]
Maneuvering Speed:
115 mph [185 km/h]
Never Exceed Speed (Vne):
150 mph [241 km/h]
Performance 80 hp 2180 AeroVee 120 hp Jabiru

Empty Weight

750 lbs 760 lbs
Baggage (Max) 40 lbs 40 lbs
Range 400 miles 350 miles
Cruise Speed @ Sea Level* 100 mph 120 mph
Cruise Speed @ 8000 ft (TAS) 120 mph 140 mph
Power Loading (GW/HP) 15.938 10.625
T.O. Distance 300 ft 250 ft
Landing Distance 300 ft 300 ft
Service Ceiling (Calculated) 29,000 ft 34,000 ft
Utility Category 80 hp 2180 AeroVee 120 hp Jabiru
Gross Weight 1275 lbs 1275 lbs
Useful Load 525 lbs 515 lbs
Rate of Climb 800-1000 fpm 1200-1400 fpm
Positive Load Factor +4.4 Gs +4.4 Gs
Negative Load Factor -2.2 Gs -2.2 Gs
L/D 24:1 24:1
CG Limits 25-36% Wing Chord 25-36% Wing Chord
Aerobatic Category 80 hp 2180 AeroVee 120 hp Jabiru
Gross Weight - Aerobatic 1050 lbs 1050 lbs
Rate of Climb 1000-1250 fpm 2000+ fpm
Positive Load Factor +6.0 Gs +6.0 Gs
Negative Load Factor -3.0 Gs -3.0 Gs
CG Limits 25-32% Wing Chord 25-32% 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 for the Xenos include AeroVee 2180 (80hp) and Jabiru 3300 (120hp). Read More...

Xenos Polar
(click to enlarge)

Xenos Polar Comparison
(click to enlarge)

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