N20SX - 2023 Sonex Aircraft LLC Sonex B Aircraft Registration

SONX

2023 SONEX AIRCRAFT LLC SONEX B

Aircraft Description

N20SX is a 2023 Sonex Aircraft LLC SONEX B, a single-engine reciprocating (piston) aircraft registered to Sonex Aircraft LLC in Oshkosh, WI. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on September 25, 2023. The registration certificate was issued on March 19, 2016. The registration is set to expire on March 31, 2029. Powered by a Aerovee 2.1 TURBO engine producing 100 horsepower, N20SX is. The aircraft's Mode S transponder code is A19150 (hex), used for ADS-B identification and flight tracking. N20SX was last tracked by AviatorDB at coordinates 43.9844, -88.5570 on June 14, 2025. The FAA registry record for N20SX was last updated on July 21, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Sonex is a popular homebuilt sport aircraft that democratized all-metal kit construction for amateur builders worldwide. First flown on February 28, 1998, it is a low-wing, two-seat monoplane powered by engines ranging from 80 to 130 horsepower. With a maximum speed of 170 mph and construction time of 800 to 1,000 hours, the aircraft can be completed for as little as $25,600. Manufactured by Sonex Aircraft of Oshkosh, Wisconsin, over 1,600 kits have been delivered since introduction. AviatorDB tracks 4 Sonex Aircraft LLC aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is SONX.

AviatorDB has found no NTSB accident or incident reports involving N20SX. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
2023
Manufacturer
SONEX AIRCRAFT LLC
Model
SONEX B
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
SONXSonex
Weight Class
Up to 12,500 lbs
Airworthiness Date
September 25, 2023
Classification
Experimental 3 Category
Type Registration
LLC
Status
Valid Registration
Cert Issue Date
March 19, 2016

Registered Owner

Name
SONEX AIRCRAFT LLC
Address
511 AVIATION RD
City
OSHKOSH
State / Zip Code
Wisconsin54902-7145
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
AEROVEE
Engine Model
2.1 TURBO
Horsepower
100 HP
Mode S Code (Oct)
50310520
Mode S Code (Hex)
A19150

Additional Details

Registration
N20SX
Serial Number
001
Number of Engines
1
Number of Seats
2
Expiration Date
March 31, 2029
Last Action Date
July 21, 2023
Last Update Date
January 19, 2026
Unique ID
01205969

Last Known Position

Date
June 14, 2025 (UTC 19:02:49)
Airport
Latitude
43.984402
Longitude
-88.556999

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-05-01 01:32:20 UTC