VLADIMIR KARNOZOV / MOSCOW
Ukrainian engine design bureau ZMKB Progress has started feasibility studies on the development of a new-generation of high-thrust, high- bypass-ratio turbofans which would be based on the core of the D-27 propfan developed for the Antonov An-70 military transport.
The Zaporozhiye-based bureau is considering three models rated at 22,000lb- (98kN), 26,500lb- and 35,000lb-thrust. According to the ZMKB, the decision to develop a turbofan derivative follows the successful completion of engine trials on the only operational An-70 prototype. "We do not intend to change anything in the core," it says.
The Motor-Sich production plant has begun assembling eight more D-27 propfan engines to power the three An-70s ordered by the Czech Republic earlier this year. They are to be completed by year-end.
The An-70 prototype has now completed its certification tests, but the programme also requires a production aircraft to be completed and audited. The first production airframe is close to completion at the Aviant factory in Kiev, but is not expected to fly until mid-2003.Source: Flight International