PowerJet spies new SaM146 variant for stretched Superjet

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Franco-Russian joint venture PowerJet is planning to introduce a modernised variant of its SaM146 turbofan to power a stretched version of Sukhoi Superjet 100.

The baseline seat configuration for the Superjet 100 is 95 seats, with a proposed larger model accommodating up to 25 additional seats.

Speaking at a presentation in Rybinsk, PowerJet executive vice-president Mikhail Berdennikov said flight trials of the stretched Superjet with enhanced SaM146 engines - designated the -1S18 - will begin at the end of 2012.

"Our plan is to complete on-wing testing and evaluation by June 2013," he says, adding that the SaM146-1S18 will allow for a 5% increase in thrust.

"This is primarily due to the use of the advanced engine management software which enables to make the most of the baseline powerplant, while keeping its architecture intact."