Is it possible to convert su-30 into stealth or semi stealth?

[ptltejas]

First of all a clean F15 has rcs of 10 sp meter.So rcs of MKI should be somewhere close not 20 sq meter as both are of similer size.Now suppose we reduce the rcs of MKI at 3 sq meter with expencive RAM coatings because redesigning the air frame will be prohibitively costly and more over can turn them unflyable.Now you can't put an internal weapon bay in between the intakes as it is used to generate the lift.So what good the reduced rcs will do?But if you can put a powerful active barrage jammer with the DRFM device and a powerful AESA radar the combo will enable you to jam the enemy comunication,datalinks and if all fails you can fry their electronics by focusing your AESA beam at them.So instead of trying to redesign the airframe all along a powerful EWS will be much more deadly and will give the best bang for the buck.
Still for your information let me tell you that some times ago MoD gave approval to mass produce 2 stealth materials.
1.Microwave absorbing nano composite coating made by IIT Kanpur.Can absorb 90% of incoming radar waves at 15 GHz.
2.Stealth coating for plexi glass canopy of fighters similar to F 16s.Developed by Association for Cultivation of Science,Kolkata.
IAF has cleared them to use on the frontline fighters.
Lastly,why are you speculating abou the rcs and radar range.Read radar basics from google and become an expert.Hope I did not bore you.
REGARDS....

No sir. Just getting aware about new tech. fist time new AESA as weapon of burning. and new stealthy coatings. I m nither expert or knowlegee. im like high school student in this field need to know more.
well I just think double the range power of radar redused fourth multiplier if i m not wrong.

I just give reasons for use it only at some extent only. not need more drastic change new coating might be useful. even gamit have thorown light not to go more on this topic however it be more useful to me for new things.
High Regards......

 

[ptltejas]

School of Materials Science and Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, People's Republic of China
Received 13 January 2010; revised 2 April 2010; accepted 15 April 2010. Available online 21 April 2010.
Abstract

Tungsten heavy alloy (WHA) rod penetrators processed by hot-hydrostatic extrusion and hot torsion (HE + HT) are subjected to ballistic impact, and the as-sintered and the as-extruded WHA rod penetrators are tested for comparison. The HE + HT WHA penetrators display the best penetration performance with the critical minimum penetration velocity decreasing more than 9% and 5% compared with the as-sintered and the as-extruded WHA penetrators, respectively. The remnants of the as-sintered and the as-extruded WHA penetrators exhibit obvious mushroom-like heads, but the remnants of HE + HT WHA penetrators maintain an acuate shape, indicating a good self-sharpening ability. Microstructure analysis shows that, adiabatic shear bands (ASBs) form at edges of the HE + HT WHA penetrator heads during the penetration process, and deformed parts of the penetrators fall off along the ASBs, which are responsible for the good self-sharpening ability and evidently improved penetration performance.

Keywords: Self-sharpening; Tungsten heavy alloy; Adiabatic shear bands; Microstructures; Ballistic impact.

ScienceDirect - Materials Science and Engineering: A : Self-sharpening behavior during ballistic impact of the tungsten heavy alloy rod penetrators processed by hot-hydrostatic extrusion and hot torsion

Omega sir i posted some thing i cant understand. may be useful to it.

 

[ptltejas]

 

[ptltejas]

The "self-sharpening effect" in ITP: due to a difference in electrical field, an ion will move faster when it comes in the previous zone, and slower when it comes in the next zone. Therefore it will return to its "own" zone. Below the corresponding electrical field for each zone

 

[ptltejas]

ad that uranium-tipped bullets somehow self-sharpen (get sharper, not duller) as they go through armor.

How does that work?

Are there many materials like this?
[Reply]
motorwaffen 09:33 PM 05-25-2004
"Depleted uranium has an advantage over special steels and tungsten, previous mainstays in antitank armor-piercing shells. Tips of bullets made from those materials blunt and mushroom after they strike armor plate, reducing penetration.

In contrast, depleted uranium is self-sharpening. As a depleted-uranium penetrator passes through armor, surface layers peel off, keeping the tip sharp enough go 25 percent deeper than traditional rounds.

Peelings and other impact debris, however, may splatter several hundred feet from the impact before falling to the ground. Dust-like particles may remain in the soil for years, becoming airborne in dry, windy conditions, or finding their way into water sources."


forums.audiworld.com/showthread.php?t=646245

 

[Omega007]

School of Materials Science and Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, People's Republic of China
Received 13 January 2010; revised 2 April 2010; accepted 15 April 2010. Available online 21 April 2010.
Abstract

Tungsten heavy alloy (WHA) rod penetrators processed by hot-hydrostatic extrusion and hot torsion (HE + HT) are subjected to ballistic impact, and the as-sintered and the as-extruded WHA rod penetrators are tested for comparison. The HE + HT WHA penetrators display the best penetration performance with the critical minimum penetration velocity decreasing more than 9% and 5% compared with the as-sintered and the as-extruded WHA penetrators, respectively. The remnants of the as-sintered and the as-extruded WHA penetrators exhibit obvious mushroom-like heads, but the remnants of HE + HT WHA penetrators maintain an acuate shape, indicating a good self-sharpening ability. Microstructure analysis shows that, adiabatic shear bands (ASBs) form at edges of the HE + HT WHA penetrator heads during the penetration process, and deformed parts of the penetrators fall off along the ASBs, which are responsible for the good self-sharpening ability and evidently improved penetration performance.

Keywords: Self-sharpening; Tungsten heavy alloy; Adiabatic shear bands; Microstructures; Ballistic impact.

ScienceDirect - Materials Science and Engineering: A : Self-sharpening behavior during ballistic impact of the tungsten heavy alloy rod penetrators processed by hot-hydrostatic extrusion and hot torsion

Omega sir i posted some thing i cant understand. may be useful to it.

THANX buddy,now I understand.However using a hardened ballistic cap on the head of a tungsten rod can achieve the same or even better penetration at lesser price and time.
REGARDS....

 

[Omega007]

Hey ptltejas,I wanted to say that your idea of reducing the rcs of MKI can prove to be advantegious if somehow they manage to shield the engine fan blades because they are the biggest source of rcs.
Besides,gambit was right that an emiting ews will give away the position but that does not mean it is useless.The jammers are switched off most of the time,only the passive systems like RWR and MAWs are kept on.When they pick up some hostile emission
then the onboard computer automaticaly takes the necessary measures.

REGARDS....

 

[gambit]

Hey ptltejas,I wanted to say that your idea of reducing the rcs of MKI can prove to be advantegious if somehow they manage to shield the engine fan blades because they are the biggest source of rcs.
Besides,gambit was right that an emiting ews will give away the position but that does not mean it is useless.The jammers are switched off most of the time,only the passive systems like RWR and MAWs are kept on.When they pick up some hostile emission
then the onboard computer automaticaly takes the necessary measures.

REGARDS....

Despite the advent of 'stealth' aircrafts jamming or ECM remain a valuable tool.

If anything, while 'stealth' can penetrate highly dense EM environment alone, an ECM assault on the defense will further confuse the defenders as to what he may face since both 'stealth' and 'non-stealth' aircrafts are equally lethal in terms of weapons.

Stand-off jamming is generally for blanket noise generation. The jammer aircraft usually does not specifically target any ground seeking radar but is concerned if there is an active EM environment, what kind is it, and its extent. The jammer aircraft usually remain just immediately outside of the weapons threat range.

Stand-in, aka 'escort' or 'penetration', jamming is much more dangerous and complex. The jammer aircraft accompanies the strike group and actually interpose itself between the seeking radar and the strike group to provide an EM shield. The jammer aircraft usually seek out as specific as possible the most threatening signals and sources and will target them. Stand-in jammers are usually 'quiet' until the very last moment in order to best exploit the electronic element of surprise against the seeking radars.

Both types can be performed by a single design. It is more a matter of mission type than of hardware. In other words, an EF-18 can be a stand-off jammer in one mission and a penetration jammer the next. However, the US is exploring making the B-52 into an ECM platform and with its size and subsonic speed, more likely this B-52 ECM variant will be confined to stand-off jamming missions. Not only can the B-52 can carry more ECM hardware but those hardware can be more powerful as well, enabling the B-52 to blanket the general area much more effectively.

When a defense is suddenly assaulted by an ECM attacker, the first thing the radar operator must do is to lower the gain in order to reduce the odds of having his hardware damaged. This is not about Hollywood where consoles explodes and sparks flying out of boxes. The damages are much more subtle. The analogy is having a sudden burst of light while looking through low-light enhancement devices, aka night vision goggles (NVG). The human eyes will require time to readjust. The radar is no different. But even though the electronics will recover quicker than the organic eyes, the few seconds is enough for the 'stealth' aircrafts to pass through an area they would rather either avoid or take extreme caution. The radar operator can also physically turn his antenna so that its main face is away from the highest intensity of the ECM assault to protect his hardware, but then again, the few seconds is all the 'stealth' aircrafts need at several hundreds km/h.

 

[SEAL]

I think its impossible to hide white elephant.

 

[Lord Of Gondor]

Dude,stop trolling!This is the third thread where you have unleashed your stupidity!
BTW,Everyone is talking about RCS reduction and not invisibility

 

[SEAL]

Dude,stop trolling!This is the third thread where you have unleashed your stupidity!
BTW,Everyone is talking about RCS reduction and not invisibility

Dude the fact is SU-30MKI is white elephant until HAL super Chankiyan formulas reduced its RCS to >3m2.

 

[SpArK]

Dude the fact is SU-30MKI is white elephant until HAL super Chankiyan formulas reduced its RCS to >3m2.

Say the same to all flanker variants , including the many ur all weather ally building, which are flanker variants.

Or is it just Indian specific answer??/

 

[Lord Of Gondor]

@Fox-^^Do you know the RCS of the Su-30 MKI or are relying on stupid guesses.If you know the RCS of the Su-30 MKI or at least your F-16's correctly,please provide official/credible sources!The engineers at HAL are working on reducing the RCS of these behemoths by various methods.So,until and unless you know the 'behind the scenes" work you cannot guess anything!
And please cut the ants in my pants rants

 

[SEAL]

Say the same to all flanker variants , including the many ur all weather ally building, which are flanker variants.

Or is it just Indian specific answer??/

No its not Indian specific answer but after some modifications and redesigning SU-35BM and J-11B rcs reduced to 3m2.

 

[ptltejas]

Exactly what happens to depleted uranium particles

mentioning the fact that uranium is a rather common mineral and that it’s been used in a number of consumer products. Indeed, thousands of kitchen cabinets contain uranium-glazed dinnerware, some of which was mass produced as recently as the 1980’s.

This has been met with a curious response on numerous occasions. Many concede that uranium is not all that harmful when touched or even ingested but then say “but what about the nano-particles.” The dust, or “nanoparticles” resulting from uranium combustion are one thing that seems to come up again and again. They are often credited with nearly magical properties, like the ability to stay suspended in the air indefinitely or to cause horrible health problems even in those far from the location where the uranium projectile was fired.

Indeed uranium tends to be more hazardous when inhaled than when exposure is by other routes, but that’s the extent of the truth to these statements. Uranium is hardly unique in this respect. Exposure to dust in general can cause respiratory problems, and certain metallic particles, such as beryllium, are well known to be especially hazardous if inhaled. By comparison, uranium less dangerous, though it can be a hazard in high concentrations.
[size="13]
What’s so special about depleted uranium projectiles:

Uranium is used for armor-penetrating munitions because it has a number of properties that make it the most ideal material available. Its use is generally confined to rounds intended to be used against armor, as the difficulties in machining uranium make it more expensive than other materials and its unique physical properties are of less use against softer targets. Uranium rounds are generally of the kinetic energy penitrator variety, meaning they contain no explosive and simply use their own energy to punch through armor.

Uranium is very heavy, with a density of 19.1 grams per cubic centimeter. That’s nearly twice as heavy as lead. The increased mass means that the round has more kinetic energy than a lighter round moving at the same velocity.[size="13]

Uranium metal also has a very unique property in how it reacts on impact. Uranium is pyrophoric and auto-ignites when it is ground or ablated. Solid samples of uranium will not burn under normal circumstances, but granular uranium or uranium turnings will. When a round strikes armor, tiny particles of uranium break free from the surface and ignite. The friction of being pushed through the target effectively grinds off a layer of material from the round, which burns, creating an aerosol of burning uranium which surrounds the round and cuts through the armor like a plasma lance.[/size]

In addition to this, uranium is extremely hard. The hardness of uranium combined with he pyrophoric qualities of the metal give depleted uranium rounds a very unique property known as self-sharpening. Rather than “mushrooming” as most metals do on impact, uranium rounds actually keep their sharpness. As material peels away from the round, it retains its taper and even becomes sharper. Maximizing this property is achieved through specialized (and sometimes classified) alloying methods.[/size]


source: depletedcranium.com/exactly-what-happens-to-depleted-uranium-particles/