TSI HOLDCO INC· ICAO24 a228f6· last seen 29d ago

N23827 is a McDonnell Douglas A-4 Skyhawk, a single-engine jet operated by TSI HOLDCO INC. SkyMeter has tracked 44 flights totalling 33 hours of airtime via ADS-B. The most frequent segment is KOSH to KOSH. Service window in our records spans 322 days. The McDonnell Douglas A-4 Skyhawk has a maximum takeoff weight of 24,500 lb, medium wake category.

About the McDonnell Douglas A-4 Skyhawk

The McDonnell Douglas A-4 Skyhawk is a single-seat, single-engine attack aircraft that became one of the most successful and longest-serving jets in naval aviation history. First flown in 1954 and entering U.S. Navy service in 1956, the Skyhawk was designed by legendary engineer Ed Heinemann as a lightweight, carrier-capable bomber that could deliver nuclear or conventional ordnance. Its compact delta wing and simple design earned it the nickname "Heinemann's Hot Rod" and made it remarkably agile for a strike aircraft. The A-4 saw extensive combat in Vietnam, where its low-level attack capability and ruggedness proved invaluable, and it remained in frontline U.S. service until the mid-1980s.

What makes the Skyhawk particularly notable is its enduring second life as an adversary aircraft. Decades after leaving fleet service, civilian-operated A-4s continue flying as aggressor trainers, simulating enemy fighters for U.S. and allied forces. Companies like Draken International maintain fleets of ex-military Skyhawks, providing realistic air combat training with an aircraft whose small size, tight turning radius, and subsonic performance make it an excellent surrogate for threat aircraft. The type's simplicity and reliability have allowed it to remain economically viable in this role well into the 21st century.

The A-4's performance envelope includes a maximum speed around 585 knots at sea level, a service ceiling near 42,000 feet, and a combat radius of approximately 340 nautical miles with a typical weapons load. Its single Pratt & Whitney J52 turbojet produces around 11,200 pounds of thrust, giving the lightweight airframe a thrust-to-weight ratio that rivals many fighters. The Skyhawk's small size—it was deliberately designed to not require folding wings on carrier decks—and its proven durability have made it one of the most exported U.S. military aircraft, serving with over a dozen nations.

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

FLIGHTS
44
all time
FLOWN HOURS
33
tracked time
📍
AIRPORTS VISITED
14
unique
📡
CALLSIGNS
1
16 routes
📅
SERVICE PERIOD
07/20/2025 → 06/07/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

10
2
2
1
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

McDonnell Douglas A-4 Skyhawk

Engines
Single Jet
Vref (approach)
135 kt
MTOW
24,500 lb
Wake category
M

Recent flights

Newest 24 operations of N23827

24
06/07/2026
1h 22m
No alerts
06/07/2026
8m
No alerts
06/06/2026
11m
No alerts
06/05/2026
46m
No alerts
06/05/2026
10m
No alerts
11/07/2025
22m
No alerts
11/07/2025
17m
No alerts
09/20/2025
5m
No alerts
09/19/2025
35m
No alerts
08/31/2025
1h 11m
No alerts
08/31/2025
44m
No alerts
08/30/2025
39m
No alerts
08/29/2025
59m
No alerts
08/23/2025
13m
No alerts
08/22/2025
19m
No alerts
08/22/2025
6m
No alerts
07/27/2025
15m
No alerts
07/26/2025
54m
No alerts
07/26/2025
1h 10m
No alerts
07/26/2025
2h 17m
No alerts
07/26/2025
2m
No alerts
07/26/2025
1h 1m
No alerts
07/20/2025
1h 15m
No alerts
07/20/2025
2h 24m
No alerts
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