TR Missile & Smart Munition Programs

[Afif]

This is an excellent article. You guys should read it

The Physics and Hype of Hypersonic Weapons

These novel missiles cannot live up to the grand promises made on their behalf, aerodynamics shows

www.scientificamerican.com

 

[Afif]

Due to their extremely high speeds until the very last moments, the HGVs are most difficult to be intercepted by anti missile systems. Ground radar stations are capable of detecting small projectiles at around 300 kilometres. Most likely, however, the course of the trajectory cannot be determined because “most” of today’s radar systems only ensure tracking of an object for speeds of less than 1,000 metres per second and a predetermined trajectory.

HGV has physical limitations on how much it can maneuver without sacrificing its range. Modern radars like LTMADS or GF300 can provide weapon quality tracks against hypersonic weapons.

 

[Yasar_TR]

How are the hypersonic glides guided?

Very good question.

One of the most challenging and demanding parts of the HGV flight is the application of reliable and effective guidance to the vehicle.

Due to high temperature environment a special care has to be taken to overcome problems especially during gliding and terminal stages.

As a good deal of the glide motion incorporates uneven wave-riding flight, it creates a challenge to use effective guidance. During wave-riding, the glide vehicle is subjected to a number of heating-up and cooling down cycles, as well as a bumpy and at times intermittent uncontrollable ride, that causes difficulties for effective guidance.

But with new digitally controlled surfaces and computer programmes, many tests have been performed whereby as an example in one case, after 6000km of flight, the HVG has hit its target with precision.

https://www.sciencedirect.com/science/article/abs/pii/S1270963820307975#:~:text=Based%20on%20motion%20equations%20of,the%20standard%20trajectories%20guidance%20scheme.

Review of control and guidance technology on hypersonic vehicle

Air-breathing hypersonic vehicle has great military and potential economic value due to its characteristics: high velocity, long range, quick response…

www.sciencedirect.com

 

[UkroTurk]

For now I would prefer scramjet powered hypersonic missiles rather than gliders.

 

[Yasar_TR]

For now I would prefer scramjet powered hypersonic missiles rather than gliders.

A Scramjet engine powered hypersonic missile, if flying through dense atmospheric layers will be subjected to very acute temperature increases at boundary layers due to air molecules ahead of the hypersonic structure are decelerated across the bow shock, and the converted kinetic energy creates very high temperatures at the leading edges.

At lower altitudes, the ambient pressure and density are so much higher that the stagnation and viscous temperature effects are exacerbated.

Typically a re entry vehicle travelling at 6 Mach may generate tip temperatures of 1300Kelvin at 100Km altitude, could have tip temperatures of 2300Kelvln at 10Km altitude.

Scramjet powered missiles, to be effective, have to travel at comparatively lower altitudes and hence denser atmospheric layers. They have to achieve 5 to 10 Mach speeds at these altitudes. This brings with it, a lot of technical obstacles and difficulties to overcome. Materials Science plays a big part in solving these problems. Tungsten, reinforced carbon and carbon composites are used at the affected tips and edges to withstand these high temperatures.

Theoretically a scramjet engine can operate at a maximum altitude of 75km. But lower the flight altitude, lower the chances of detection. However lower the altitude, higher the temperature created limitations.

Most importantly, as Scramjet powered missiles have to travel through comparatively thick layers of atmosphere, they are limited by the fuel they carry. Hence much shorter ranges (less then 10th of) than a HGV.

Below is an interesting article on Zircon, the Russian so called hypersonic scramjet powered cruise missile, and the technical challenges it faces.

The Zircon: How Much of a Threat Does Russia’s Hypersonic Missile Pose?

Russian moves to operationalise the Zircon hypersonic missile represent an important development, but the significance – especially in terms of the current conflict – should not be overstated.

www.rusi.org

 

[Strong AI]

KUZGUN-SS Munition Firing Test
Bull’s Eye

Sinop

https://twitter.com/i/web/status/1834196620205830171

 

[Sanchez]

We hadn't heard from Kuzgun-SS in a while, probably since the Aksungur test in march.