· ICAO24 ae61d2· last seen Jan 2026

761557 is a Northrop F-5E/F Tiger II, a twin-engine jet. SkyMeter has tracked 74 flights totalling 55 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KNQX to KNQX. Service window in our records spans 196 days. The Northrop F-5E/F Tiger II has a maximum takeoff weight of 24,722 lb, light wake category.

About the Northrop F-5E/F Tiger II

The Northrop F-5 Tiger II is a lightweight supersonic fighter that became one of the most widely exported combat aircraft of the Cold War era, serving over 30 air forces from the 1970s onward. Designed as an affordable, easy-to-maintain alternative to heavier American fighters like the F-4 Phantom, the F-5E featured twin General Electric J85 turbojets, leading-edge root extensions for improved maneuverability, and a top speed exceeding Mach 1.6. Its small radar cross-section, tight turning radius, and modest operating costs made it ideal for air defense and dissimilar air combat training, roles it continues to fill decades after production ended in 1987.

While most F-5s have been retired from frontline military service, a significant number remain active in the United States under civilian contract operators providing adversary support to the Department of Defense. Companies like Tactical Air Support and ATAC operate ex-military F-5E/F airframes to simulate threat aircraft during training exercises, flying against Navy, Air Force, and Marine Corps squadrons. These aggressor missions exploit the F-5's nimble performance and small size to replicate the flight characteristics of Russian-designed fighters like the MiG-21. The aircraft's Mach 1.6+ capability and sustained turn performance at 15,000-25,000 feet make it a credible surrogate for fourth-generation adversaries, and its relatively low fuel burn keeps operating costs manageable for high-tempo training sorties.

The F-5's enduring presence in the adversary role reflects both its inherent design strengths and the scarcity of supersonic platforms available to civilian contractors. With a service ceiling above 50,000 feet and a combat radius of roughly 500 nautical miles, the Tiger II remains capable of realistic threat replication across a wide range of training scenarios. Its twin-engine layout provides redundancy for over-water operations, and the type's long service history means maintenance expertise and spare parts remain accessible despite the airframe's age.

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

FLIGHTS
74
all time
FLOWN HOURS
55
tracked time
📍
AIRPORTS VISITED
9
unique
📡
CALLSIGNS
2
13 routes
📅
SERVICE PERIOD
6/25/2025 → 1/7/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

6
5
2
2
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Northrop F-5E/F Tiger II

Engines
Twin Jet
Vref (approach)
155 kt
MTOW
24,722 lb
Wake category
L

Recent flights

Newest 39 operations of 761557

39
1/7/2026
19m
No alerts
1/7/2026
19m
No alerts
1/7/2026
19m
No alerts
1/6/2026
45m
No alerts
1/6/2026
45m
No alerts
1/6/2026
45m
No alerts
12/17/2025
19m
No alerts
12/17/2025
19m
No alerts
12/15/2025
25m
No alerts
12/10/2025
1h 2m
No alerts
12/9/2025
25m
No alerts
12/9/2025
27m
No alerts
11/13/2025
54m
No alerts
11/12/2025
1h 15m
⤓ Emergency descent
11/5/2025
56m
No alerts
11/4/2025
1h 3m
No alerts
11/3/2025
35m
No alerts
9/16/2025
47m
No alerts
9/16/2025
36m
No alerts
9/15/2025
43m
No alerts
9/9/2025
1h 36m
No alerts
9/9/2025
34m
No alerts
9/8/2025
8m
No alerts
9/8/2025
1h 6m
No alerts
9/8/2025
4h 25m
No alerts
9/2/2025
13m
No alerts
9/2/2025
30m
No alerts
8/28/2025
30m
No alerts
8/28/2025
27m
No alerts
8/19/2025
16m
No alerts
8/18/2025
1h 4m
No alerts
8/18/2025
35m
No alerts
8/8/2025
34m
No alerts
8/1/2025
1h 8m
No alerts
7/31/2025
26m
No alerts
7/30/2025
27m
⤓ Emergency descent
7/18/2025
56m
No alerts
6/25/2025
20m
No alerts
6/25/2025
11m
No alerts
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