Russia firms 'PD-14' domestic engine concept for MS-21

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Conceptual definition of a new domestic turbofan to power United Aircraft's proposed MS-21 has reached a firm design stage, with development costs estimated at Rb35 billion ($1.1 billion).

Initially dubbed the PS-14, after Aviadvigatel's PS engine family, the project has been redesignated as the PD-14 - the Russian acronym for 'prospective engine'.

Aviadvigatel's Moscow representative says that this also reflects a broad collaborative effort that involves other constituent firms of the United Engine Corporation.

Speaking to local media, the company's chief Andrei Reus said the PD-14 concept design envisioned "an array of principally new engineering solutions, including the use of cutting-edge technologies and modern materials".

"By undertaking it, we hope to restore the necessary competence [in this field] otherwise this industry could simply degrade," he adds.

While one version of the MS-21 will be fitted with the PD-14, the other will have engines based on Pratt & Whitney's PW1000G.

"This should give customers a choice, providing for competition between engine suppliers and better quality," says Reus. "At this point, the funding is coming from the state budget. But we'll raise loans when the project moves to the production."

Aviadvigatel chief Alexander Inozemtsev says a timetable for design work on the PD-14 is to be agreed with Russia's Central Institute of Engine Manufacture, TsIAM, by March so that certification trials can begin in 2014.