AIRPLANE FACTORY INC· ICAO24 a9e663· last seen 1d ago

N737PT is a Sling TSi, a single-engine piston aircraft operated by AIRPLANE FACTORY INC. SkyMeter has tracked 1,906 flights totalling 1,613 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KLGB to KLGB. Service window in our records spans 442 days. Of those flights, 190 (10.0%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Sling TSi has a maximum takeoff weight of 2,050 lb.

About the Sling TSi

The Sling 4 is a South African-designed four-seat light aircraft that has carved out a distinctive niche in the experimental and kit-built market since its introduction in 2013. Manufactured by The Airplane Factory (TAF) in Johannesburg and marketed globally by Sling Aircraft, it represents one of the few modern all-metal kit planes optimized for both amateur construction and factory-built Light Sport or Experimental certification. Powered by a 115-horsepower Rotax 914 turbocharged engine, the Sling 4 delivers respectable cruise speeds around 140 knots while maintaining docile low-speed handling characteristics with a stall speed under 50 knots in landing configuration.

The aircraft's aluminum construction and relatively spacious cabin have made it popular among builders seeking a capable cross-country tourer that can be assembled in a home workshop, typically requiring 1,200 to 1,500 hours of build time. Its high-wing predecessor, the Sling 2, established the brand's reputation for straightforward construction and good flying qualities, but the Sling 4's low-wing configuration and four-seat capacity opened the design to family and small-group travel missions. The type has gained particular traction in the United States experimental market, where its combination of modern avionics compatibility, fuel efficiency, and relatively affordable kit pricing appeals to owner-builders.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
1,906
all time
FLOWN HOURS
1,613
tracked time
📍
AIRPORTS VISITED
66
unique
📡
CALLSIGNS
2
159 routes
📅
SERVICE PERIOD
5/28/2025 → 8/14/2026
first → last
INCIDENT RATE
10.0%
190 flagged

Top routes

By flight count

10
208
192
86
35
21
15
14
14
13
11

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Sling TSi

Engines
Single Piston
Vref (approach)
60 kt
MTOW
2,050 lb
Wake category
Light

Recent flights

Newest 50 operations of N737PT

50
8/14/2026
21m
No alerts
8/14/2026
1h 0m
No alerts
8/13/2026
1h 1m
No alerts
8/13/2026
1h 10m
No alerts
8/13/2026
1h 8m
No alerts
8/11/2026
1h 23m
No alerts
8/11/2026
1h 15m
No alerts
8/11/2026
4m
No alerts
8/11/2026
59m
No alerts
8/10/2026
55m
No alerts
8/10/2026
1h 10m
No alerts
8/10/2026
51m
No alerts
8/10/2026
2h 46m
No alerts
8/9/2026
46m
△ Low approach-stability score
8/8/2026
37m
No alerts
8/8/2026
3m
No alerts
8/8/2026
41m
No alerts
8/7/2026
1h 2m
No alerts
8/7/2026
52m
No alerts
8/7/2026
1h 16m
No alerts
8/6/2026
1h 10m
No alerts
8/6/2026
47m
No alerts
8/6/2026
18m
No alerts
8/6/2026
22m
No alerts
8/6/2026
1h 4m
No alerts
8/6/2026
1h 12m
△ Low approach-stability score
8/5/2026
1h 7m
No alerts
8/5/2026
1h 27m
△ Low approach-stability score
8/5/2026
1h 3m
No alerts
8/4/2026
1h 22m
No alerts
8/4/2026
1h 8m
No alerts
8/3/2026
17m
No alerts
7/31/2026
51m
No alerts
7/31/2026
52m
No alerts
7/31/2026
31m
No alerts
7/31/2026
38m
No alerts
7/31/2026
56m
No alerts
7/31/2026
18m
No alerts
7/31/2026
1h 19m
No alerts
7/30/2026
11m
△ Low approach-stability score
7/30/2026
18m
No alerts
7/29/2026
2h 39m
No alerts
7/29/2026
3h 4m
No alerts
7/28/2026
1h 2m
△ Low approach-stability score
7/28/2026
49m
△ Low approach-stability score
7/28/2026
57m
No alerts
7/27/2026
1h 21m
△ Low approach-stability score
7/27/2026
2h 43m
No alerts
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