SINGLETON ADDISON· ICAO24 abf40e· last seen 12d ago

N87AS is a Sonex Aircraft Sonex, a single-engine piston aircraft operated by SINGLETON ADDISON. SkyMeter has tracked 96 flights totalling 33 hours of airtime via ADS-B. The most frequent segment is 5MA4 to KPYM. Service window in our records spans 338 days. Of those flights, 4 (4.2%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. 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
96
all time
FLOWN HOURS
33
tracked time
📍
AIRPORTS VISITED
33
unique
📡
CALLSIGNS
1
39 routes
📅
SERVICE PERIOD
08/08/2025 → 07/12/2026
first → last
INCIDENT RATE
4.2%
4 flagged

Top routes

By flight count

10
3
3
2
2
1
1
1
1
07MA 28M
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Sonex Aircraft Sonex

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

Recent flights

Newest 48 operations of N87AS

48
07/12/2026
9m
No alerts
07/12/2026
10m
No alerts
04/16/2026
12m
No alerts
04/16/2026
11m
No alerts
02/13/2026
5m
No alerts
02/13/2026
20m
No alerts
02/13/2026
13m
No alerts
02/13/2026
7m
No alerts
02/13/2026
58m
No alerts
02/10/2026
46m
No alerts
02/06/2026
25m
No alerts
01/14/2026
10m
No alerts
01/14/2026
19m
No alerts
01/14/2026
1h 12m
No alerts
01/14/2026
42m
No alerts
01/14/2026
42m
No alerts
01/14/2026
5m
No alerts
01/10/2026
59m
No alerts
01/05/2026
42m
No alerts
01/05/2026
7m
No alerts
12/28/2025
9m
No alerts
12/28/2025
17m
No alerts
12/26/2025
10m
No alerts
12/26/2025
19m
No alerts
12/20/2025
32m
No alerts
12/07/2025
14m
No alerts
11/20/2025
45m
No alerts
11/20/2025
34m
No alerts
11/20/2025
5m
No alerts
11/07/2025
30m
△ Low approach-stability score
11/07/2025
57m
No alerts
11/02/2025
17m
No alerts
10/25/2025
10m
No alerts
10/24/2025
8m
No alerts
10/24/2025
17m
No alerts
10/23/2025
3m
No alerts
10/23/2025
2m
No alerts
10/23/2025
7m
No alerts
10/19/2025
3m
No alerts
10/19/2025
4m
No alerts
10/15/2025
11m
No alerts
10/07/2025
24m
No alerts
10/07/2025
6m
No alerts
09/04/2025
20m
No alerts
09/03/2025
6m
No alerts
08/08/2025
18m
No alerts
08/08/2025
5m
No alerts
08/08/2025
21m
△ Low approach-stability score
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