Central Aerohydrodynamic Institute
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TsAGI researches the comfort enhancement capabilities for the Sukhoi Superjet 100

24 November 2016

The Central AeroHydrodynamic Institute named after professor N.E. Zhukovsky (TsAGI, part of the National Research Center “Institute named after N.E.Zhukovsky”) has completed a series of tests of the Sukhoi Superjet 100 (SSJ100) as per contracts with Sukhoi Civil Aircraft Company (SCAC). Research work was devoted to examining a profile to determine an acoustic environment inside the cabin and cockpit during flight to enhance the passenger comfort level.

Prototype and production units of the SSJ100 were used for the examination. Specialists of TsAGI installed microphones to measure the noise level along the entire aircraft length and inside the cockpit. Standard windows were substituted with special ones fitted with transducers sensing the pressure pulsation on the outer surface of the aircraft body. This equipment recorded the acoustic data in real flight.

TsAGI’s experiments demonstrated that the maximum permissible noise level inside the cabin and cockpit of the SSJ100 met the effective state standard, “Aircraft and helicopter of civil aviation: Permissible noise levels in cabins and cockpits and methods of noise measurement.” In fact, the aircraft proved to have the capacity for even better acoustic comfort. This conclusion was made upon analyzing the data collected in the course of flight tests. Institute scientists recommended the use of innovative vibration-absorptive materials in the tail and middle parts of the SSJ100.

Earlier, TsAGI and SCAC carried out extensive research to ensure compliance of the SSJ100 design with the Russian and European aviation requirements. A series of tests had been performed to find out the aircraft’s potential, including flight distance extension, acoustic improvement and lifetime prolongation.

Sukhoi Superjet 100 (SSJ100) is a new-generation aircraft designed and produced by Sukhoi Civil Aircraft Company with the participation of Leonardo-Finmeccanica Company. It incorporates the most advanced aerodynamics, propulsion unit and avionics technologies ensuring the efficient operation and comfort of passengers. The SSJ100 is to operate on short- and medium-haul routes. The flight distance of a baseline model SSJ100 is over 3 thous. km, with over 4.5 thous. km for an extended distance model. The aircraft has been in commercial service since 2011.

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