TAILWINDS LLC· ICAO24 ab7b51· last seen 4d ago

N839RS is an Aero Vodochody L-39 Albatros, a single-engine jet operated by TAILWINDS LLC. SkyMeter has tracked 216 flights totalling 196 hours of airtime via ADS-B. The most frequent segment is KHPN to KHPN. Service window in our records spans 402 days. Of those flights, 54 (25.0%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Aero Vodochody L-39 Albatros has a maximum takeoff weight of 10,362 lb, light wake category.

About the Aero Vodochody L-39 Albatros

The Aero Vodochody L-39 Albatros is a Czech-built subsonic jet trainer that became the most widely produced jet trainer in aviation history, with over 2,800 aircraft delivered between 1971 and 1996. Designed during the Cold War as the standard advanced trainer for Soviet bloc air forces, the L-39 replaced the earlier L-29 Delfín and introduced a more modern turbofan engine, tandem cockpit with excellent visibility, and docile handling characteristics that made it ideal for transitioning student pilots to jet operations. Its single Ivchenko AI-25TL turbofan produces 3,792 pounds of thrust, giving the aircraft a maximum speed of 466 knots and a service ceiling of 37,730 feet, while maintaining remarkably economical operating costs compared to Western contemporaries.

What distinguishes the L-39 in the 21st century is its thriving second life in civilian hands. Following the dissolution of the Warsaw Pact, hundreds of surplus Albatros aircraft entered the warbird market, where their relatively simple systems, forgiving flight characteristics, and jet performance made them accessible to private owners and contract adversary operators. The type has found particular success in the United States and other Western nations as an advanced aerobatic platform, formation trainer, and aggressor aircraft for military contract work. Companies like Draken International and ATAC operate fleets of L-39s to provide realistic adversary training for fighter squadrons, while individual owners fly them at airshows and in competitive aerobatics.

The aircraft's tandem seating, side-by-side ejection seats, and tip tanks give it an instantly recognizable profile. Its straight wing and conventional layout prioritize stability and ease of handling over raw performance, with approach speeds around 115 knots making it manageable for pilots transitioning from piston aircraft. The L-39 can sustain +8/-4 G loads and remains fully aerobatic throughout its envelope, though its subsonic design means it lacks the thrust-to-weight ratio of modern fighter trainers. Variants include the baseline L-39C trainer, the L-39ZA light attack version with underwing hardpoints, and the upgraded L-39NG with a Williams FJ44 engine that entered production in 2023.

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

FLIGHTS
216
all time
FLOWN HOURS
196
tracked time
📍
AIRPORTS VISITED
64
unique
📡
CALLSIGNS
1
90 routes
📅
SERVICE PERIOD
06/10/2025 → 07/18/2026
first → last
INCIDENT RATE
25.0%
54 flagged

Top routes

By flight count

10
5
3
3
2
2
2
2
2
2
2

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Aero Vodochody L-39 Albatros

Engines
Single Jet
Vref (approach)
115 kt
Vmo
405 kt
MTOW
10,362 lb
Wake category
L

Recent flights

Newest 50 operations of N839RS

50
07/18/2026
29m
△ Low approach-stability score
07/16/2026
47m
No alerts
07/16/2026
45m
No alerts
07/16/2026
44m
No alerts
07/14/2026
50m
No alerts
07/12/2026
5m
No alerts
07/11/2026
3m
No alerts
07/11/2026
23m
△ Low approach-stability score
07/11/2026
11m
△ Low approach-stability score
07/10/2026
34m
No alerts
07/10/2026
26m
No alerts
07/10/2026
39m
No alerts
07/09/2026
35m
No alerts
07/08/2026
1h 10m
No alerts
07/08/2026
1h 10m
No alerts
07/08/2026
30m
No alerts
07/08/2026
2h 9m
No alerts
07/06/2026
4m
No alerts
07/05/2026
52m
No alerts
07/05/2026
57m
No alerts
04/29/2026
40m
No alerts
04/29/2026
7m
No alerts
04/29/2026
47m
No alerts
03/14/2026
1h 13m
No alerts
03/13/2026
19m
No alerts
03/13/2026
18m
No alerts
03/12/2026
53m
△ Low approach-stability score
03/12/2026
54m
No alerts
03/12/2026
2h 51m
△ Low approach-stability score
03/11/2026
19m
△ Low approach-stability score
03/05/2026
48m
No alerts
03/04/2026
14m
No alerts
03/03/2026
12m
No alerts
03/03/2026
33m
No alerts
03/03/2026
1h 13m
No alerts
03/03/2026
1h 25m
No alerts
03/03/2026
4h 36m
No alerts
02/12/2026
37m
No alerts
02/11/2026
35m
No alerts
02/11/2026
45m
No alerts
02/10/2026
53m
No alerts
11/29/2025
1h 20m
No alerts
11/29/2025
1h 21m
△ Low approach-stability score
11/28/2025
1h 5m
No alerts
11/28/2025
1h 1m
△ Low approach-stability score
11/16/2025
1h 18m
No alerts
11/16/2025
46m
No alerts
11/15/2025
34m
△ Low approach-stability score
11/14/2025
12m
△ Low approach-stability score
11/13/2025
12m
No alerts
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