Family of DV-2 Aircraft Engines

The DV-2 engine is a two-spool low-bypass turbofan aircraft engine designed for the extreme operating conditions of military jet trainer and light attack airplane operation. Demands on the engine for these airplanes are extensive and antagonistic. Therefore, requiring a design that is simple, robust, easy to maintain, has a low fuel consumption, low pilot’s workload, low operational costs on the one hand and high performance, good operational qualities, resistance to shock landings, surge, high operational load factors and high cycle load on the other hand.

The DV-2 engine effectively meets all these requirements. It was originally designed and manufactured for the Aero L-59 Super Albatros (L-39MS) jet trainer and light attack aircraft, intended for service in various climatic and operational conditions. High reliability, a progressive maintenance concept featuring modular construction, and a diagnostic system including borescope inspection, tribodiagnostics, vibration diagnostics, and engine monitoring allow operators to maintain high operational readiness

Basic characteristics of the DV-2 engine

  • Medium-bypass turbofan engine intended for trainer aircraft
  • Twin-rotor, twin-shaft engine with coaxial rotors and a front-coupled fan, equipped with a three-stage electronic-hydraulic control system
  • Modular construction allows module replacement directly in service without special adjustments
  • An advanced diagnostic system enabling monitoring of service life consumption and fault prediction before they develop
  • High reliability and operational safety
  • Low operating costs, easy handling, and environmentally friendly

Basic parameters of the DV-2 engine

  • Thrust depending on version: 19–25 kN
  • Bypass ratio: 1.46
  • Service ceiling: min. 13 km
  • Maximum speed: 0.89 M
  • Dry weight: 474 kg
  • TBO / service life: 500 / 1500 hours

History of DV-2 engine development

  • 1979 – Signing of an intergovernmental agreement on the development of an aviation training system between the USSR and Czechoslovakia
  • 1982 – Signing of an international contract for DV-2 engine development and production between the USSR and Czechoslovakia
  • 1982–1990 – Development and prototype production
  • 1984 – Engine tests in a flying laboratory
  • 1986 – First aircraft flight with the installed DV-2 engine
  • 1986–1990 – Flight tests, prototype production, infrastructure development, technology preparation, and production ramp-up
  • 1990 – Signing of the final act (airworthiness approval), acquisition of master documentation and the master engine
  • 1990–1991 – Production of the verification series, continuation of flight tests
  • 1992 – Complete termination of cooperation with ZMKB Progress Zaporozhye; independent continuation of production and development
  • 1992–2008 – Serial production
  • 2010–2015 – Provision of technical support
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