bhramos
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Turkey and Russia are in an advaced stage of negotiations to finalize a potential deal on Su-35. A supposed deal will be Turkey's second major purchase of weapon systems for Russia. The Turkish offials said that although the final numbers may change during the negotiating process, Turkey could by 2 squadrong (a batch of 48) Su-35s.
Putin's objective is not to arm Turkey; it is to entice them enough to get kicked out of NATO.Why not negotiate for Russia's supposedly 5th gen fighter Su-57 that Putin is so eager to sell to Turkey? That's odd.
Further on the aerospike demonstrator, here is the 2021 public trial (apparently using low flow rates of hydrocarbon fuel ?) compared to this recent test with hydrolox propellents.On October 7, 2022, a successful demonstration launch of a rocket engine based on oxygen-hydrogen components took place at the site of JSC "Research Institute of Mechanical Engineering" in the city of Nizhnyaya Salda, Sverdlovsk Region. Work on the project to create a reusable rocket propulsion system with a central body is carried out under the program of the national project "Science and Universities," the ANO "Regional Infrastructure of Education and Science" reported. At the site of the Scientific Research Institute of Mechanical Engineering, demonstration launches of a propulsion system with a central body were made, consisting of 16 rocket engines, which are combined into a single system. The rocket and space complex demonstrator for the returnable reusable launch vehicle includes control and monitoring systems with artificial intelligence and has no analogues in the world. This year, after a large amount of theoretical and design work, the demonstrator of the first stage engine was successfully tested on the oxygen-hydrogen fuel pair, which provides the maximum energy performance for the launch vehicle.
This is a big and exciting step in our project, because the oxygen-hydrogen fuel pair is a very explosive mixture, few people in the world know how to work with such engines: Russia, the USA and China {Big_Gazza edit: and India}. Now we are moving to a new stage, only this fuel pair will ensure the fulfillment of all the tasks. Therefore, we initially set the task of switching to oxygen and hydrogen, there were many doubts, because it is very difficult. Not everything worked out right away, but the launch took place, the central body, cooled, has already worked. Without exaggeration, this is world class. There is not a single scientific publication that would describe the launch of an engine demonstrator with a cooled central body running on oxygen and hydrogen, so we can say that these two launches, which took place, are the first in the world. The challenges we face now”, says Sergey Vaulin , SUSU Vice-Rector for Scientific and Educational Centers and Complexes.
Work on the project is supported by the Governor of the Chelyabinsk region Alexei Teksler . The regional government allocated 50 million rubles, another 5 million were sent by South Ural State University and 10 million by the Ural REC. The project is being implemented jointly with the State Rocket Center named after Academician V.P. Makeev (Miass), JSC Research Institute of Mechanical Engineering (Nizhnyaya Salda).
The demonstrator of a liquid-propellant rocket engine with a central body is similar to that which will be used in a promising reusable launch vehicle, which is being created today at the State Rocket Center named after V.P. Makeev. It is ten times smaller than a real engine ,” said Vladimir Degtyar, Director General and General Designer of the State Rocket Center named after V.P. Makeev, Academician of the Russian Academy of Sciences.
Work on the carrier rocket "CROWN" Since the 90s of the XX century, the SRC has been conducting initiative design work on a reusable single-stage vertical take-off and landing launch vehicle KORONA (Space Orbital Rocket - Single-stage Spacecraft Carrier). All LV engines use oxygen/hydrogen components. Most KORONA launcher systems are designed as modular. The launch vehicle provides for a high degree of autonomy in the performance of a flight mission, up to the independent completion of the flight in the event of a loss of communication with the control center. The design life of the design of the launch vehicle elements, most of its instruments and units is at least 100 flights, the OM and SOPP engines are at least 50, individual, especially energy-intensive units are at least 25.
Sources:
South Ural State University
National Projects.rf
Yes please I had no idea since i put russia space news on search, i think finding an existing thread was hard for me.@blackjack There is already a thread, isn't it better to merge two?