Russian researchers have completed initial aerodynamic tests on the nacelle of the Aviadvigatel PD-14, the powerplant for the Irkut MC-21.
The test programme, performed at Moscow’s Central Aerohydrodynamics Institute, included analysing the nacelle’s performance at cruising speeds up to M0.82.
Its powerplant research division chief Vladimir Akinfiev says the initial studies have generated “valuable results” which back up forecasts.
But he adds that the analysis has turned up additional data which requires “reflection and replication” across a broader range of parameters.
Further aerodynamic tests will begin on the PD-14 at the institute’s windtunnel facilities in spring next year.