https://aviation21.ru/yak-152-zavershil-gosispytaniya-na-ocheredi-importozameshhenie-dvigatelya/
The Yak-152 has completed state tests. Engine import substitution is next
01/19/2024, 13:15
The light training aircraft for the initial training of pilots of the Russian Aerospace Forces Yak-152 passed factory and flight design tests, and in December 2023 the state joint tests (GST) were successfully completed. About itreportsRIA Novosti with reference to the press service of PJSC Yakovlev.
State joint tests are analogous to certification tests in civil aviation. GSI is carried out by the State Flight Test Center of the Ministry of Defense named after V.P. Chkalov. In total, three flight prototypes and two for static ones at TsAGI were involved in the tests.
During these tests, the main flight characteristics of the aircraft were confirmed. According to a company representative, the next stage in the development of the project will be the import substitution of the engine, propeller and other components of the Yak-152 with Russian analogues with their testing in the “short term”.
The Yak-152 is a two-seat, single-engine aircraft equipped with a German RED A03T V12 engine. The machine is designed to teach future pilots the basics of piloting, including takeoff, landing, maneuvering and navigation. The aircraft has excellent maneuverability and stability, making it ideal for training novice pilots.
Currently, Yakovlev is working on import substitution of the German engine and is considering two main options: modernizing the current engine based on the Russian component base or adapting the VK-650 helicopter engine developed by UEC-Klimov to the Yak-152.
When choosing domestic analogues, the company is guided by the need to preserve the already achieved flight performance characteristics of the Yak-152. At the same time, maximum unification of the placement and geometry of the hood group will be ensured, which will minimize the amount of additional testing.
Earlier, in January, the Ministry of Industry and Trade of the Russian Federationreportedthat the alternative training aircraft UTS-800, which is being developed at the Ural Civil Aviation Plant, is being prepared for flight tests. The plane is jogging along the runway and has made one approach.
Currently, the UTS-800 is equipped with a General Electric engine. It is planned that it will receive a VK-800SM turboprop engine. Certification of the power plant is expected at the end of 2024, the aircraft - in 2025.
If possible I would really prefer they were able to "import substitute" the RED A03T V12.
It was a very promising diesel engine developed mostly with russian money which could run either on jet-fuel, kerosene-type/diesel, or SAF.
Some of the technologies and design solutions used there maybe could be also later used in other engines (possibly including also smaller 4 cylinder engines for small aircrafts, like the Austro Diesel engine used in the diamond Da-42 (2x Austro Engine E4 (AE 300), 168 hp engines, 4 cylinder, 2 litres engine displacement, Dry weight: 186 kg) and Da-62 (2 X 180hp engines, also 4 cylinder and 2 litres).
These are the characteristics of the RED A03T V12.
https://web.archive.org/web/20170809172119/https://www.red-aircraft.com/wp-content/uploads/2012/07/RED-A03.pdf
General characteristics
Type: 80° v-12 four-stroke compression-ignition piston engine
Bore: 86 mm (3.39 in)[17]
Stroke: 88 mm (3.46 in)[17]
Displacement: 374.3 cu in (6,134 cc)
Length: 1,100 mm (43 in)
Width: 850 mm (33 in)
Height: 750 mm (30 in)
Dry weight: 363 kg (800 lb) (RED A03-003/005), 357 kg (787 lb)(RED A03-102) dry.
Furthermore in 2017 there was the proposed design of a smaller V6 engine.
https://web.archive.org/web/20170809172108/https://www.red-aircraft.com/wp-content/uploads/2012/07/RED-A051.pdf
RED A05 300hp V6
The RED A05 is a 2017 preliminary design of a V6 engine with 3,550 cc (217 cu in) displacement, outputting 300 hp (220 kW) at takeoff at 2127 propeller RPM and 280 hp (210 kW) continuously at 1995 propeller RPM, with a 210 g/kWh (0.35 lb/(hp⋅h)) best brake specific fuel consumption.
By the way maybe Russia should try to have Germany release the engine developer.
In 2023, Vladimir Reichlin, the engine developer (and founder and owner of red aircraft engines) was convicted by the Koblenz court in Germany and sentenced to five years in prison for illegal export to Russia from 2015 to 2021 for military use in circumvention of German sanctions.
https://www.flugrevue.de/flugzeugbau/red-aircraft-motoren-nach-russland-exportiert-fuenf-jahre-haft/
Vladimir Raikhlin was born in Russia and graduated from the Kazan Aviation Institute with a degree in aircraft engine engineering. After college, he worked for some time at VAZ . In the early 2000s, he founded the RED (Raikhlin Engine Development) company in Germany
https://ru-aviation.livejournal.com/2330467.html