Aero Vodochody L 139

Type (Muster)
Jet trainer and light attack aircraft (Strahltrainer und leichtes Kampfflugzeug)

Country (Land)
Czech Republic

Manufacturer (Hersteller)
Aero Vodochody
25070 Odolena Voda
Czech Republic

Phone: 0042-2/688-0041
Fax: 0042-2/823172

General (Allgemeine Angaben)
Crew (Besatzung): 2

Weapons (Bewaffnung): The L 139 features four underwing hardpoints and a load station under the fuselage. External stores options include:

gun pod under the fuselage
rocket pods (up to 4)
350 liter drop tanks (up to 2)
IR-guided air-to-air missiles (2)
250 kg bombs (4)
450 kg bombs (2)
125 kg bombs (6)
recce pod

Power plant (Antrieb): 1 x Allied Signal (Garrett) TFE731-4 turbofan
Max. thrust (Schub): 1 x 18,15 kN (4080 lbs)
Specific fuel consumption (Spezifischer Kraftstoffverbrauch): 0,518 kg/kN/h

Dimensions (Abmessungen)
Length (Länge): 12,13 m
Height (Höhe): 4,77 m
Span (Spannweite): 9,46 m
Wing area (Flügelfläche): 18,8 sq m

Weights (Massen)
Basic empty weight (Leermasse): 3460 kg
Fuel (Kraftstoff): 980 kg in fuselage and wingtip tanks (100 l each)
External fuel (vier 350 l Zusatztanks): 1088 kg
Max. external load (max. Außenlast): 1500 kg
Clean ramp weight (Rollmasse ohne Außenlasten): 4600 kg
Take-off, clean (Startmasse ohen Außenlasten): 4550 kg
Max. take-off weight (Max. Startmasse): close to 6000 kg

Performance (Flugleistungen)
Max. level speed (max. Horizontalgeschwindigkeit): 760 km/h (410 KTAS)
Never exceed speed (Geschwindigkeitslimit): 910 km/h at sea level
Stalling speed (Überzeihgeschwindigkeit): 160 km/h (86 KTAS)
Max. rate of climb (Steigrate): 22,4 m/s
Service ceiling (Dienstgipfelhöhe): 12000 m
Take-off run (Startrollstrecke): 540 m at sea level
Landing run (Landerollstrecke): 560 m at sea level, 50% fuel
Max. range (max. Reichweite), internal fuel only (10% reserve): 1650 km
Max. endurance (max. Flugdauer): 3 h 19 min, with internal fuel
Maximum load factor (max. Belastung): +8/-4 g

Customers (Kunden)
None yet

Competitors (Konkurrenz)
British Aerospace Hawk
Aermacchi MB 339

Remarks (Bemerkungen)
The L 139 was developed from the L 39 to meet the requirements of new generation jet trainers, featuring advanced systems mostly sourced from western companies. These include a Flight Visions HUD and Bendix/King avionics. It first flew on 8 May 1993. In flight tests since then, it has so far failed to attract a customer.

Last updated 26. March 1998

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