Aircraft & UAVs

Aero L-39NG

Also known as
  • L-39NG
  • L-39 Skyfox
  • Aero L-39 Skyfox
  • L-39 Next Generation

The Aero L-39NG is a Czech two-seat subsonic jet trainer and light-attack aircraft developed by Aero Vodochody as the modernized successor to the L-39 Albatros family. Aero now markets the type as L-39 Skyfox, and the program pairs a Williams FJ44-4M turbofan with modern avionics, a 15,000-flight-hour service life, and training, reconnaissance, and light-combat roles.

Aero L-39NG, Two-seat subsonic jet trainer and light-attack aircraft, Aircraft & UAVs
Image source: L-39NG 0475 (3) | Wikimedia Commons

Role in Conflicts

2015 Various Conflicts
Side
Unconfirmed conflict context

Held in the 2015 Various Conflicts archive because the open-source record confirms the L-39NG program and current operators, but not a precise named modern conflict assignment.

Profile / Specs

Profile

Origin
Czech Republic
Type
Two-seat subsonic jet trainer and light-attack aircraft
Service note
2018-present
Designer
Aero Vodochody AEROSPACE
Designed
2014
Produced
2018-present
Developed from
Aero L-39 Albatros

Specifications

Crew
2
Length
11.83 m
Wingspan
9.38 m
Height
4.87 m
Empty weight
3,280 kg
Maximum take-off weight
5,600 kg
Maximum speed
Up to 907 km/h
Maximum range
1,900 km with internal fuel
Endurance
About 3 h 45 min
Maximum payload
1,350 kg
Engine
1 x Williams International FJ44-4M turbofan
Engine thrust
16.86 kN
Maximum G-load
+8 / -4 G
Service life
15,000 flight hours
Operators And Orders

Aero's public delivery trail places the L-39NG/Skyfox in training and tactical-training fleets rather than a verified combat deployment record. Vietnam was the first customer; Czech LOM PRAHA uses the type at Pardubice for Czech and foreign pilot training; Hungary ordered training and reconnaissance configurations; and Aero announced 2026 contracts for Angola and an unnamed North American civil customer.

Vietnam

First customer, with Aero reporting the first six-aircraft handover in 2024.

Czech Republic

LOM PRAHA's Pardubice training center had six Skyfox aircraft available by January 2026, with two more scheduled for 2026.

Hungary

Aero reported eight delivered aircraft by November 2025 under a package that includes training and reconnaissance configurations.

New customers

Aero announced 2026 contracts for up to four Angolan Air Force aircraft and one unnamed North American civil customer.

Variants

Aero uses L-39NG/Skyfox designations for customer and certification configurations within the same new-generation L-39 family.

VariantConfigurationDesignation notes
L-39NG.T1NATO training configuration

Aero says the T1 version is configured for Czech and Hungarian pilot training and certified for training NATO pilots for 4th- and 5th-generation aircraft.

Sources: Aero expands the L-39NG family with another certified variant | Aero

L-39NG.A1Non-NATO training configuration

Aero describes the A1 variant as a training-system version for non-NATO customers.

Sources: Aero expands the L-39NG family with another certified variant | Aero

Rocket Launchers

Aero's Skyfox materials show the aircraft with Soviet and Western rocket-launcher options in payload lists and mission displays.

Carried itemItem typeCarriage evidence
UB-16UM rocket pod, 16-tube rocket launcher pod for S-5 rockets, Support EquipmentUB-16UM rocket podRocket pod

The Skyfox brochure lists UB-16-57UMP rocket pods among eastern payloads and shows a mission profile using two pods with 32 S-5 rockets.

Sources: L-39 SKYFOX | Aero - Sestava 1

S-5 rocket, 57 mm unguided air-to-surface rocket, MunitionsS-5 rocket57 mm air-to-ground rocket

The same Aero brochure mission profile pairs two UB-16-57UMP pods with 32 S-5 rockets.

Sources: L-39 SKYFOX | Aero - Sestava 1

LAU-32 rocket launcher, 7-tube 70 mm rocket launcher, MunitionsLAU-32 rocket launcherRocket launcher

Aero's Dubai Airshow 2025 release says the armed Skyfox static display was equipped with two LAU-32 rocket launchers.

Sources: World Premiere of the L-39 Skyfox at Dubai Airshow 2025: | Aero

Gun Pods

Aero's Skyfox brochure lists 12.7 mm gun pods among western payloads and shows a close-air-support configuration carrying one pod.

Carried itemItem typeCarriage evidence
12.7 mm gun pod, 0.50-caliber gun pod, Support Equipment12.7 mm gun podAirborne gun pod

The Skyfox brochure includes 12.7 mm gun pods among western payloads and depicts a close-air-support configuration carrying one pod.

Sources: L-39 SKYFOX brochure | Aero

Sensor Pods

Aero's Skyfox brochure also lists an EO/IR pod fit for border-patrolling and ISR missions.

Carried itemItem typeCarriage evidence
EO/IR Pod, Electro-optical/infrared airborne sensor pod, Support EquipmentEO/IR PodEO/IR sensor pod

The 2025 brochure shows a border-patrolling configuration with 2 EFT 350 l and 1 EO/IR pod, and separately describes EO/IR with laser designator among the aircraft's mission payload examples.

Sources: L-39 SKYFOX brochure | Aero

Carried Munitions

Aero's Skyfox brochure lists western payloads such as BDU-33, P-50-75, and MK 82 bombs, plus eastern payloads including OFAB-100-250-270.

Carried itemItem typeCarriage evidence
Mk 82 500-pound unguided bomb, Air-delivered 500-pound low-drag general-purpose bomb, MunitionsMk 82 500-pound unguided bomb500-pound unguided bomb

The Skyfox brochure lists GP bombs MK 82 among western payload examples and includes a close-air-support configuration with two MK 82 bombs.

Sources: L-39 SKYFOX | Aero - Sestava 1

Mark 81 bomb, 250-pound general-purpose bomb, MunitionsMark 81 bomb250-pound unguided bomb

The Skyfox brochure lists GP bombs MK 81 among western payload options for the L-39NG/Skyfox.

Sources: L-39 SKYFOX brochure | Aero

BDU-33 practice bomb, Practice bomb, MunitionsBDU-33 practice bombPractice bomb

The Skyfox brochure lists BDU-33 practice bombs with a bomb dispenser among western payloads and mission profiles.

Sources: L-39 SKYFOX brochure | Aero

P-50-75 practice bomb, Practice bomb, MunitionsP-50-75 practice bombPractice bomb

The Skyfox brochure lists P-50-75 practice bombs among western payloads and mission profiles.

Sources: L-39 SKYFOX brochure | Aero

OFAB-250-270, 250 kg high-explosive fragmentation bomb, MunitionsOFAB-250-270High-explosive fragmentation bomb

Aero's Skyfox brochure lists OFAB-100-250-270 among eastern payload options for the L-39NG.

Sources: L-39 SKYFOX | Aero - Sestava 1

Timeline

Aero L-39NG Key Events

  1. Development starts

    Aero says work on the L-39NG program began in 2014 as a modernization of the L-39 family.

    Sources: History | Aero - L-39NG milestones

  2. Technology demonstrator first flies

    Aero says the L-39NG technology demonstrator, designated L-39CW, first flew on 14 September 2015.

    Sources: History | Aero - L-39NG milestones

  3. Prototype unveiled

    Aero presented the newly produced L-39NG for the first time on 12 October 2018.

    Sources: History | Aero - L-39NG milestones

  4. Prototype first flight

    The prototype with registration 0475 first flew on 22 December 2018.

    Sources: History | Aero - L-39NG milestones

  5. Serial production begins

    Aero says public presentation at NATO Days in 2019 marked the start of serial production.

    Sources: History | Aero - L-39NG milestones

  6. Certification milestone

    Aero says the L-39NG received unrestricted type certification in 2022.

    Sources: History | Aero - L-39NG milestones

  7. Series production and training aircraft

    Aero says the first series-produced L-39NG flew in April 2023 and that the state enterprise LOM Praha would receive four aircraft for Czech pilot training.

    Sources: History | Aero - L-39NG milestones

  8. First customer delivery

    Aero reported the first handover of six L-39NG aircraft to Vietnam, the program's first customer.

    Sources: Successful handover of the L-39NG to the first customer | Aero

  9. T1 training variant certified

    Aero reported Czech military aviation-supervision certification for the L-39NG.T1 trainer configuration used by the Czech Republic and Hungary.

    Sources: Aero expands the L-39NG family with another certified variant | Aero

  10. Skyfox name adopted

    Aero announced Skyfox as the public name for the L-39NG as serial production and customer deliveries moved forward.

    Sources: A Czech fox is heading to the world sky | Aero

  11. Hungarian handover

    Aero reported the handover of the first three L-39 Skyfox aircraft to the Hungarian Air Force.

    Sources: First three L-39 Skyfox aircraft handed over to Hungary | Aero

  12. Hungarian fleet reaches eight aircraft

    Aero reported that three more Skyfox aircraft had departed for Hungary, bringing new Skyfox deliveries to Hungary to eight aircraft.

    Sources: Three more L-39 Skyfox aircraft flew to Hungary | Aero

  13. LOM PRAHA fleet reaches six aircraft

    Aero reported the sixth Skyfox aircraft delivered for the Pardubice Aviation Training Center, with two more due by the end of 2026.

    Sources: Sixth L-39 Skyfox aircraft delivered to LOM PRAHA | Aero

  14. Angola and North America orders announced

    Aero announced active Skyfox contracts for customers in Angola and North America, including up to four aircraft for Angola and an unnamed North American civil customer.

    Sources: New Orders for AERO: Skyfox Heads to Africa and America | Aero

Media

Aero L-39NG Videos

Aero L-39NG Images

Aero L-39NG, Two-seat subsonic jet trainer and light-attack aircraft, Aircraft & UAVs - view 1
Source: L-39NG flying low | Wikimedia Commons
Aero L-39NG, Two-seat subsonic jet trainer and light-attack aircraft, Aircraft & UAVs - view 2
Source: L-39NG - FJ44-4M | Wikimedia Commons
Aero L-39NG, Two-seat subsonic jet trainer and light-attack aircraft, Aircraft & UAVs - view 3
Source: Foto Aero Vodochody L-39 SkyFox 2 | Wikimedia Commons
Related Weapon Systems
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Sources

L-39 SKYFOX | AeroPublisher: Aero Vodochody | Note: Supports the official system description, mission roles, manufacturer background, and core technical specifications. | Accessed: 2026-07-04L-39 SKYFOX brochure | AeroPublisher: Aero Vodochody | Note: Supports the Skyfox brochure payload list showing 12.7 mm gun pods, the EO/IR pod border-patrolling configuration, and the close-air-support loadout carrying one pod. | Accessed: 2026-07-04L-39 SKYFOX | Aero - Sestava 1Publisher: Aero Vodochody | Note: Supports the brochure payload examples listing MK 82 bombs, UB-16-57UMP rocket pods, S-5 rockets, and the related loadout diagrams. | Accessed: 2026-07-04World Premiere of the L-39 Skyfox at Dubai Airshow 2025: | AeroPublisher: Aero Vodochody | Note: Supports the armed Skyfox static-display configuration with two LAU-32 rocket launchers at Dubai Airshow 2025. | Accessed: 2026-07-04History | Aero - L-39NG milestonesPublisher: Aero Vodochody | Note: Supports L-39NG development start, prototype and certification milestones, production context, and service-life background. | Accessed: 2026-07-04Successful handover of the L-39NG to the first customer | AeroPublisher: Aero Vodochody | Note: Supports the first customer delivery to Vietnam and the aircraft's delivery context. | Accessed: 2026-07-04First three L-39 Skyfox aircraft handed over to Hungary | AeroPublisher: Aero Vodochody | Note: Supports the Hungarian handover and operator context. | Accessed: 2026-07-04Three more L-39 Skyfox aircraft flew to Hungary | AeroPublisher: Aero Vodochody | Note: Supports the November 2025 Hungarian delivery update and the report that eight new Skyfox aircraft had been delivered to Hungary. | Accessed: 2026-07-04Another two L-39 Skyfox aircraft head to Pardubice | AeroPublisher: Aero Vodochody | Note: Supports Czech training-fleet delivery context and the LOM PRAHA operator. | Accessed: 2026-07-04Sixth L-39 Skyfox aircraft delivered to LOM PRAHA | AeroPublisher: Aero Vodochody | Note: Supports the January 2026 Pardubice training-fleet update and the six-aircraft LOM PRAHA delivery status. | Accessed: 2026-07-04Aero expands the L-39NG family with another certified variant | AeroPublisher: Aero Vodochody | Note: Supports the L-39NG.T1 and L-39NG.A1 variant descriptions, T1 certification, and NATO training-configuration context. | Accessed: 2026-07-04A Czech fox is heading to the world sky | AeroPublisher: Aero Vodochody | Note: Supports the October 2024 Skyfox naming, series-production context, and contemporary customer references. | Accessed: 2026-07-04New Orders for AERO: Skyfox Heads to Africa and America | AeroPublisher: Aero Vodochody | Note: Supports the June 2026 Angola and North America order announcement and the program export-context update. | Accessed: 2026-07-04L-39NG 0475 (3) | Wikimedia CommonsPublisher: Wikimedia Commons | Note: Supports image provenance and licensing for the primary L-39NG gallery image. | Accessed: 2026-07-04L-39NG flying low | Wikimedia CommonsPublisher: Wikimedia Commons | Note: Supports image provenance and licensing for an in-flight L-39NG gallery image. | Accessed: 2026-07-04L-39NG - FJ44-4M | Wikimedia CommonsPublisher: Wikimedia Commons | Note: Supports image provenance and licensing for the engine-view gallery image. | Accessed: 2026-07-04Foto Aero Vodochody L-39 SkyFox 2 | Wikimedia CommonsPublisher: Wikimedia Commons | Note: Supports image provenance and licensing for the Aero Skyfox manufacturer image. | Accessed: 2026-07-04