Russian researchers are continuing development work on the new Irkut Superjet 100 variant, the SSJ-New, with tests on nacelles for the domestically-built engine.

The SSJ-New will be powered by the Aviadvigtel PD-8, a derivative of the PD-14 designed for the Irkut MC-21-310.

Moscow’s Central Aerohydrodynamic Institute has been assessing the nacelle in a windtunnel to determine its aerodynamic characteristics in cruise.

The nacelle was tested at speeds of M0.7-0.82 and angles of attack from 3.4 to 4.9k.

“We are carrying out a whole range of tasks for creation of the domestic PD-8 engine,” says the institute’s head of powerplant aerodynamic research Vladimir Akinfiev.

“This is a strategically-important task, thanks to which the domestic aviation engine manufacturing will gain independence from foreign companies.”

Previous work has included studying characteristics of the PD-8’s air intake and researchers are also set to analyse the nacelle with a simulated thrust-reverser.

PD-8s will be used not only for the SSJ-New but also the firefighting Beriev Be-200.

PD-8 nacelle test-c-Central Aerohydrodynamic Institute

Source: Central Aerohydrodynamic Institute

Further testing of the nacelle will include simulated reverse-thrust modifications