Sukhoi has started the fatigue strength testing of longer range variant of its Superjet 100 airliner at the Central Aerohydrodynamic Ins...
Sukhoi has started the fatigue strength testing of longer range variant of its Superjet 100 airliner at the Central Aerohydrodynamic Institute (TsAGI) in Moscow, to achieve European Aviation Safety Agency (EASA) certification.
The tests will confirm the designed service life of the aircraft: 70 000 flight hours and 54 000 cycles.
During the fatigue strength testing, all the primary elements of the aircraft structure will be checked under multiple loading conditions corresponding to all flight stages, including turbulence”, — said Sukhoi Civil Aircraft Company Chief Designer Mr Vladimir Lavrov.
“The test results will confirm both the stated aircraft service life and the programme of maintenance checks developed for this aircraft type and implemented during Customers’ fleet operations”.
At the moment the confirmed designed service life of the aircraft is 9 000 flight hours and 6 000 cycles.
Last year this SSJ100, certified model RRJ-95LR-100, with production number 95075, was delivered disassembled by the AN-124 “Ruslan” freighter to the Ramenskoye airfield, in the town of Zhukovsky, near Moscow.
Fuselage, wings and tail were put together and special purpose load complex, measuring sensors and structure health monitoring systems were adjusted to the assembled SSJ100 airframe.
The LR version has a longer range of up to 4578 km or 2470 nm compared to the basic SSJ variant, Maximum Take Off Weight of 49 450 kg, strengthened wings for increased weight and is powered by PowerJet SaM146 engine with five percent increased takeoff thrust.
The TsAGI was instrumental right from the begining of the Superjet program in 2001.
