AIRPLANE FACTORY INC· ICAO24 ab1e34· last seen 4d ago

N815ZF is a Sling TSi, a single-engine piston aircraft operated by AIRPLANE FACTORY INC. SkyMeter has tracked 560 flights totalling 487 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KVAY to KVAY. Service window in our records spans 346 days. Of those flights, 26 (4.6%) 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
560
all time
FLOWN HOURS
487
tracked time
📍
AIRPORTS VISITED
34
unique
📡
CALLSIGNS
2
45 routes
📅
SERVICE PERIOD
8/30/2025 → 8/11/2026
first → last
INCIDENT RATE
4.6%
26 flagged

Top routes

By flight count

10
122
44
16
8
6
3
3
3
2
KOQN 7N7
2

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 N815ZF

50
8/11/2026
38m
△ Low approach-stability score
8/11/2026
1h 1m
No alerts
8/11/2026
51m
No alerts
8/10/2026
1h 14m
No alerts
8/10/2026
20m
No alerts
8/10/2026
2m
No alerts
8/10/2026
27m
No alerts
8/10/2026
19m
No alerts
8/9/2026
1h 13m
No alerts
8/9/2026
22m
No alerts
8/7/2026
36m
No alerts
8/7/2026
1h 15m
No alerts
8/7/2026
1h 3m
No alerts
8/6/2026
1h 7m
No alerts
8/6/2026
49m
No alerts
4/10/2026
1h 30m
△ Low approach-stability score
4/10/2026
1h 6m
No alerts
4/9/2026
1h 6m
No alerts
4/9/2026
24m
No alerts
4/9/2026
14m
No alerts
4/9/2026
18m
No alerts
4/9/2026
25m
No alerts
4/9/2026
38m
No alerts
4/9/2026
56m
No alerts
4/8/2026
1h 13m
No alerts
4/8/2026
48m
No alerts
4/8/2026
33m
No alerts
4/8/2026
1h 25m
No alerts
4/8/2026
1h 18m
No alerts
4/7/2026
2h 26m
No alerts
4/6/2026
1h 27m
No alerts
4/6/2026
1h 13m
No alerts
4/4/2026
20m
No alerts
4/4/2026
1h 22m
No alerts
4/4/2026
41m
No alerts
4/4/2026
43m
No alerts
4/3/2026
1h 12m
△ Low approach-stability score
3/30/2026
1h 13m
No alerts
3/29/2026
1h 3m
No alerts
3/29/2026
12m
No alerts
3/29/2026
42m
No alerts
3/29/2026
1h 20m
No alerts
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