Russian engineers have tested a model of a promising SHFDMS airliner, which is being developed jointly with China. The first flight of the car can make in the new decade.
The Central Aerohydrodynamic Institute named after N. E. Zhukovsky has completed the next stage of testing a model of a promising Russian-Chinese wide-body passenger aircraft CR929, which is also called SHFDMS (wide-body long-haul aircraft).
The specialists focused on the basic aerodynamic model of the aircraft, equipped with a sickle-shaped wing tip. Among the features of the wing is the use of an extremely large narrowing, which reduces the weight of the structure. If we talk about Russian civil airliners, this figure is a record.
Engineers are facing serious technical challenges, in particular, preventing the appearance of disruptive phenomena at the ends of the wing. This applies to both low and high flight speeds.
Model CR929
Image source: tsagi
The experiments were carried out at air flow velocities up to M=0.96. The results obtained confirmed the high aerodynamic quality of the chosen design. This year, they want to conduct another stage of testing: during it, experts will study, in particular, the quality of modified engine pylons.
Model CR929
Image source: tsagi
The CR929 aircraft will accommodate approximately 250-300 passengers. The younger version of the winged machine has the designation CR 929-500, the older version-CR 929-700. The Latin letters C and R used in the name mean the names of the participating states of the project: China and Russia. The first flight of the SHFDMS can be performed around the middle of the decade, although sometimes more optimistic terms are called
Today, the CR929 is one of the key projects of the Russian aircraft industry. According to previously presented data, at the first stage, the car can be equipped with foreign engines, but then they plan to use the new Russian PD-35.
The latter in a broad sense is a development of the PD-14 engine, developed for the Russian medium-range narrow-body passenger aircraft MS-21. Recall that last year, an airliner of this type, equipped with PD-14, made its first flight. The start of serial production of the aircraft was repeatedly postponed: according to the latest data, it can be expected around 2025.
MS-21-310 with Russian PD-14 engines
Image source: Rostec
It should also be noted that in 2020, Russian developers announced tests of a gas generator for the PD-8 engine, which they want to use for the Sukhoi Superjet 100.