Projektili i rakete kineskih proizvodjaca

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Koliko shvatam iz teksta, nisu još testirali (lansirali pravu raketu)?

Kinezi su se hvalili pre koju godinu, da su uspeli da naprave vazdušni tunel u kojem mogu da testiraju hipersonične rakete. Kritiku na isti koju sam čitao je umanjivala dostignuće. Ne znam dovoljno da bih rekao šta je tu tačno. Ali hteo sam da pomenem, kao nešto što im možda omogućava da brže razvijaju ovako nešto.

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Uloguj se preko Facebooka da bi video sliku:

Pa i ja bih rekao da su za sada ovo testovi u laboratorijskim uslovima.
Većina vojno-naučnih online platformi su prenele ovu vest sa sajta South China Morning Post koji je jedan od najuticajnijih engleskih jezičkih medija u Aziji (sedište u HongKongu).
Nije moguće čitanje ove vesti bez pretplate ali evo jednog izvora na engleskom za koji verujem da je preneo od reči do reči sadržaj teksta sa SCMP.

+ Hypersonic missiles can be made from steel, reach Mach 8 speed, claims ChinaHypersonic missiles can be made from steel, reach Mach 8 speed, claims China

Once considered almost impossible to achieve, the Chinese scientists say that they have been able to do this with the help of a new thermal protection technology.


China’s DF-17, a medium-range missile system equipped with a hypersonic glide vehicle. (Representational image)

Scientists in China state that they have found out a way to fit steel – in place of the heavy and costly tungsten – in nose cones on the tip of hypersonic missiles.
Once considered almost impossible to achieve, the Chinese scientists say that they have been able to do this with the help of a new thermal protection technology.

According to a report by South China Morning Post (SCMP), the scientists have presented the design for a hypersonic glide anti-ship missile in a peer-reviewed paper published in the Chinese journal Acta Armamentarii.
According to the SCMP report, the team of scientists is led by Huang Fenglei, a professor at the Beijing Institute of Technology.
If the use of steel nose in missile cone is achieved, it could drastically bring down the price of hypersonic missiles.

Steel nose cones in hypersonic missiles

According to the report published by SCMP, the design presented by the researchers in the paper shows the hypersonic missile can be made using a commonly available and high-strength stainless steel.
The scientists claim that the hypersonic missile designed by them with steel nose cone can achieve speeds of Mach 8 (roughly 6,090 miles per hour or 9,800 km/h) with ease.
One of the big issues in using steel in hypersonic missiles is that it has a melting point of 2,190 degree Fahrenheit (1,200 degree Celsius). This is lower than the temperature of 3,000 degree Fahrenheit which a hypersonic missile can reach during flight due to its high speed and atmospheric conditions.
Therefore, although quite desirable, countries around the globe have not been able to replace tungsten with steel in hypersonic weapons.
Tungsten alloys are typically used by other countries for their hypersonic weapons as they have a melting point above 3,400 degree Fahrenheit. However, it is a rare metal and most of its production is controlled by Chinese companies.
To replace tungsten with steel advanced thermal protection is needed, something which the Chinese scientists claim to have achieved.
As per the SCMP report, the missile will rise above the atmosphere after launch and then drop to an altitude of 18 to 12 miles before hitting the target.

Managing temperature and developing low-cost weapons

The temperature inside the warhead could reach 3000 degree Fahrenheit after 18 seconds, as per their estimation, which would be enough to ignite the explosive agent in the missile.
The steel nose cone will have an added layer of thermal protection which would help it retain its shape and form before the impact.
The scientists propose using an ultra-high temperature ceramic as a top layer of the barrier, underneath it an aerogel layer will act as a heat insulator to maintain the temperature of the explosive.

Hypersonic weapons are the new rage and several countries are racing to develop low-cost versions of the same. Replacing tungsten with steel would help in making low-cost missiles which can be mass produced and used with ease.
China already has a number of hypersonic missiles in its arsenal, alongside Russia which has also used them in the ongoing war against Ukraine.
The United States is also looking to get a hypersonic missile in its kitty, but the projects run by it have failed to come up with desired results.
China is reportedly much ahead of other countries in the race to develop hypersonic weapons and it intends to mass produce them so that they can be used in war situations. Beijing is also focusing on developing them at a low-cost, something which other countries have failed to accomplish, as per the available information.

Last month, scientists from National University of Defense Technology’s College of Aerospace Science and Engineering in Changsha, China, claimed to have developed a new cooling device for hypersonic weapons which could improve the flight time by nearly two and a half hours, according to the claims.

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Jedno pitanje, posto sad sam bas procitao clanak na TangoSix oko CM400

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Malo me je zbunio, po njihovom pisanju, CM400 je deo porodice raketa CM
I stavili su sliku izlozenih modela, CM-501, CM-502; 506...
Ali kad guglam po netu, CM400 nije deo te porodice
Serija 500 su uglavom dronovi i protiv tenkovski projektili

[Link mogu videti samo ulogovani korisnici]

Dok je CM400 klasican VZ projektil

[Link mogu videti samo ulogovani korisnici]

Tu su se malo zbunili tamo

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Za pisca teksta se lako može primeniti onaj Balaševićev stih
Tako to biva kad se previše sniva, a stvarno se malo zna
Naravno, tu je i jurcanje za eksluzivom sa fotografijom koja je prvo ovde objavljena.

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Jedna kineska firma je na sajmu 2024. izložila raketu za koju je koristila maketu Rafala kao primjer.

[Link mogu videti samo ulogovani korisnici]

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Izvinjavam se ako je glupo pitanje.

Da li ove rakete(CM400) mogu da se lansiraju sa zemlje uz neke modifikacije? Naravno, podrazumevam smanjen domet u tom slučaju.

Korišćenje istih zavisi od toga da li su Migovi čitavi u ne daj Bože okolnostima. Zato pitam.

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Prosto rečeno, svaka raketa bi se trebala moći lansirati sa zemlje, samo je pitanje i to za svaki pojedinačni tip rakete, koliko bi takvo lansiranje bilo efikasno.
Naravno tri su osnovna (govorim samo o mehanici leta) faktora koji će skraćivati domete takvog lansiranja:

1) nulta strartna brzina će naravno vrlo osakatiti mogućnosti
2) borba sa gustim slojevima atmosfere će to još više unazaditi
3) motor se očekuje da je prilagođen (radni tlakovi u motoru i ekspanzija u mlaznici) lansiranju i radu u određenom visinskom području pa je lansiranje na zemlji nešto bi taj motor dosta ograničilo

Sve tri točke su zapravo povezane sa osnovnim pitanjem, šta je u tom motoru i kako taj motor radi, a to naravno ne znamo. Možemo nagađati šta bi trebalo biti da se dobije maksimum, pod očekivanim uvjetima korištenja, recimo 7-8km visine i brzina lansiranja 0,8-0,9M i ovako na prvu rekao bih da je potrebno da motor radi što duže da nabije finu brzinu, recimo 15-25 sekundi i rekao bih da nema buster fazu, a ako i ima, ne nešto žestoko i jako.
CY-400 je također 400mm, slična raketa, možda i dijele neke komponente, samo što se ova lansira sa zemlje i mora biti tu nekog bustera.

Ako CM400 nema buster nego jednorežimski dugoradni motor, onda bi lansiranje sa zemlje bilo vjerovatno sa efektom kao kad su Phoenix (AIM-54) pokušavali tako lansirati pa dohvatili jedva nekih 30km, a normalno leti mnoooogo dalje i sa vrlo velikom brzinom koju motor raketi može dati ovisno o parametrima lansiranja