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The US hypersonic weapon fails again.





Image 1): X-51 "Waverider" hypersonic testbed under the wing of B-52 "Stratofortress" mothership. Image was taken about 5 years ago. 

The USAF hypersonic weapon program faced failure again. The thing is that the hypersonic missile failed while it was released. Hypersonic missiles and aircraft are not very easy to make. One of the biggest problems is how to make the aerodynamic controller. During the hypersonic flight, the pressure cone caused around the missile is the vacuum or extreme low pressure. That makes traditional controllers unusable. 

And if the hypersonic cone hits the aerodynamic controller those controllers will rip off. There is possible to make things like control rockets or air channels through the body of the missile. Another problem is how to conduct temperature out from the core of the hypersonic body. 

The missile will turn by conducting airflow to those tubes. The hypersonic, scramjet driven cargo-system introduced to raise small-size space shuttles to a higher atmosphere. 


There are two types of hypersonic systems

1) Scramjet-driven.

2) Rocket-engine-driven. 


The term "hypersonic missile" means the cruise missile that operates in the atmosphere. The speed of those missiles is over Mach 5. The rocket-engine-driven hypersonic missiles are already in use at least in China and Russia. 

The scramjet-driven cargo carrier rises the shuttle to a ballistic jump. And then the orbiter vehicle uses its internal fuel for rising higher orbiter. These kinds of systems are easier to make than hypersonic scramjet-driven missiles. Those orbiter carriers don't need as accurate aiming as missiles. But when we are thinking about hypersonic missiles. Also, regular ICBM missiles are hypersonic. 

The HGS (Hypersonic Glide Systems) are the warheads that can come down by using a gentle track. That thing gives them the ability to strike targets by using unexpected directions. There is also introduced a weapon where the ICBM missile takes the hypersonic cruise missile above the atmosphere. 

The HCS (Hypersonic Cruise System) means the air-launched cruise missiles that are dropped from the bomber of the fighter. Those weapons can be scramjet or rocket engine driven. The rocket engine-driven hypersonic systems are more conventional than scramjet-based systems. 

Then the hypersonic cruise missile just falls back into the atmosphere. And the scramjet engine starts to operate. Defense contractors along with the air force planned these kinds of systems to put into production in the late 1990s. But the technology was not enough high level. 

When we are talking about hypersonic weapons, the last text was about scramjet-driven systems. Russian Kinzhal-hypersonic missiles use conventional rocket engines. Their speed depends on the carrier plane. And there are many conventional rocket-based hypersonic weapons in production and service. 


https://eurasiantimes.com/setback-for-us-hypersonic-program-as-latest-test-ends-in-failure-navy-sets-a-deadline-to-field-its-mach-5-weapon/?amp


https://en.wikipedia.org/wiki/Kh-47M2_Kinzhal


Image 1) https://www.ibtimes.co.uk/arms-race-between-us-china-russia-develop-hypersonic-missiles-fighter-aircraft-1508241


https://onlyimaginationlimitsinnovation.blogspot.com/

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