ALLEN WILLIAM S· ICAO24 ac6c17· last seen 11d ago

N9SN is a Sonex Aircraft Sonex, a single-engine piston aircraft operated by ALLEN WILLIAM S. SkyMeter has tracked 50 flights totalling 24 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KLOU to KLOU. Service window in our records spans 408 days. The Sonex Aircraft Sonex has a maximum takeoff weight of 1,150 lb, light wake category.

About the Sonex Aircraft Sonex

The Sonex is a compact, all-metal sport aircraft designed by John Monnett and introduced by Sonex Aircraft in the early 2000s as an affordable kit for amateur builders. With its distinctive Y-tail, folding wings, and aerobatic capability, the Sonex carved out a niche in the experimental light-sport category, offering builders a relatively quick build time (typically 700 to 1,000 hours) and economical operation with engines ranging from 80 to 120 horsepower. The design emphasizes simplicity and performance, achieving cruise speeds around 140 knots on modest fuel burns, making it popular among sport pilots and budget-conscious aviators seeking genuine stick-and-rudder flying.

The Sonex family has expanded to include the stretched two-seat Waiex, the single-seat Onex, and even an electric variant, the e-Flight Sonex, which in 2013 became one of the first manned electric aircraft to complete sustained flight testing. Its low empty weight (under 600 pounds for some variants) and rugged construction have made it a favorite at fly-ins and air races, where Sonex aircraft regularly compete in Sport Class events. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
50
all time
FLOWN HOURS
24
tracked time
📍
AIRPORTS VISITED
18
unique
📡
CALLSIGNS
2
17 routes
📅
SERVICE PERIOD
06/01/2025 → 07/14/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

10
2
1
1
1
43KY 3R8
1
09KY 8I1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Sonex Aircraft Sonex

Engines
Single Piston
Vref (approach)
50 kt
MTOW
1,150 lb
Wake category
L

Recent flights

Newest 25 operations of N9SN

25
07/14/2026
9m
No alerts
07/14/2026
40m
No alerts
06/15/2026
47m
No alerts
06/15/2026
37m
No alerts
03/21/2026
13m
No alerts
03/21/2026
46m
No alerts
02/28/2026
47m
No alerts
02/01/2026
45m
No alerts
01/03/2026
12m
No alerts
01/03/2026
42m
No alerts
12/27/2025
44m
No alerts
10/11/2025
6m
No alerts
09/14/2025
2m
No alerts
09/14/2025
33m
No alerts
08/24/2025
40m
No alerts
08/24/2025
2m
No alerts
08/16/2025
26m
No alerts
08/16/2025
33m
No alerts
08/03/2025
52m
No alerts
08/03/2025
12m
No alerts
07/26/2025
28m
No alerts
06/28/2025
38m
No alerts
06/28/2025
12m
No alerts
06/01/2025
2m
No alerts
06/01/2025
29m
No alerts
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