according to the law of conservation of energy, energy can neither be created nor destroyed unless it is converted into matter according to Einstein’s equation E = mc2. incoming electromagnetic waves hitting radar absorbing paint must be converted into another energy form as they cannot be converted into matter. the most common conversion is into heat as described in wikipedia. this heating process is similar to what happens in a microwave oven where electromagnetic waves are converted into heat on the surface of food.
Before you get all scientific there, Food gets heated up because of the Water dipoles, Ceramic plates don’t get heated even when you keep it with the food. The smarter you are trying to be more ridiculous you are sounding.
With respect to radar there are things called scattering and surface waves before you even consider absorption. Hence F-22 is shaped like so for this reason.
Most plant and animal tissues have water hence they get heated up with microwave. An empty microwave oven will not heat up at all even if it is made of metal. For further trivia, pure ice with 0% water will not melt in a microwave. It melts coz if there is a single water molecule it will have a cascading effect due to the dipolar interaction of a single molecule melting those in close proximity. And most composites are microwave transparent.
jets such as F-22 which make use of radar absorbing paint are vulnerable to AESA / IRST combos which use an AESA as a heater for an IRST 😀
:D:D . Which means the AESA has be really close to cause any noticeable change in surface temperature of a microwave irradiatable substance. You could just use your eyeball instead at that range. For reference a Magnetron outputs 1kW over 15 cm distance and concentrated in an area of hardly 200 to 400 cm2 and that too for water. Now try an AESA with 25kW, to irradiate an area over a distance of 100 km you need to spread that power over 62000 km2. You can calculate the power density yourself. don’t forget to consider attenuation 😉
F-22 can supercruise up to Mach 1.5, but its engines rev faster as its speed increases. by the time it is at Mach 1.5, even though its afterburners are not turned on, its engines are revving so fast that its engines generate almost as much heat as with its afterburners turned on. plus, supercruising for significant periods of time generates so much heat due to friction with the air that its iron ball paint would melt rendering it unstealthy 😀
The new stealth coating developed for F-35 will go into F-22 as well.
http://www.airforcetimes.com/news/2011/04/air-force-raptor-joint-strike-fighter-radar-absorbent-coatings-040611w/
It is much better and will not melt as you claimed even while super-cruising at M1.8. Don’t derail this thread also.
Wash, Rinse, Repeat 😉
😀
Nice Indeed. They need to ruggedise the displays and increase the pixel life if it is not high enough already including avoidance of dead pixels. By the way what is Hamilton doing in HeliRussia, the stand looks out of place if not for the two gorgeousnesses standing there. No pics of the crocodile? The Monitor on top is a Panasonic.
Any news about the Arrow 2 for India. India needs some purpose built ABM system to prevent zealots to its west from destroying human civilization.
metal is a proven technology over thousands of years. it is the least damaging to health as opposed to modern composite materials 😀
Indeed metal is the least damaging, in fact some metals like Plutonium gives energy besides being harmless.
Nice strong legs, unlike others. 😉
Not much different from the U.S. giving $ 3 billlion in military aid to Israel each year. All the F-16s and F-15s in the Israeli AF were gotten free. Israel wants to get the F-35 JSF for free, and cut in front of everybody and get the first one off the assembly line, even though they invest nothing in the consortium.
But things cost to make in the US. :p .
For an agile fighter like the Gripen C/D with higher G capability and higher speed, something like ASRAAM, Meteor, RVV SD are needed to shoot it down. Even MiG 21 is faster with 27% lesser thrust engine with the same G rating as a JF 17. :cool:.
😮 are they operational?
Don’t worry the curvature of the earth means that the launching platform also will be exposed. But the precious AWACS is a sitting duck. K 100 has been funded by India, R 37 is going to upgraded MiG 31s, and RVV BD is available from KTRV since last year. But you can be sure they will be launched outside the Max range of the likes of PL 12 or ASRAAM, way outside the No Escape zone. By the way the JF 17 with a low G rating also is vulnerable to these missiles and with an RCS of around 2 to 3 m2 loaded it can probably be seen by an Irbis E from excess of 250 km (wiki says 400km, that is probably at concentrated power only). But again the curvature of the earth might help but once the the LOS is achieved it will always be visible.
RVV BD – 200 km range (confirmed by KTRV)
R 37 – 150 – 398 km 😮
K 100 – min 200km, possibly 300 to 400km.:eek:
Some of the figures are from Wiki which someone lifted from Jane’s.
India’s Su 30 MKI are going to get the Super 30 Upgrade and the Irbis E tech will trickle to the Bars as there was no plan to replace the Bars directly with the Irbis E.
I still beleived in piloted aircraft…
with UCAV/piloted drone…. one huge jammer aircraft and all your drones are dead or even turned against you…..
Piloted at least for the next one and half decade if not more, :). But if you see the trend, lots of American research is directed towards autonomous operation. Which means if Communication is compromised the thing operates on its own based on a set of predefined rules of engagement or simply return home.
I am sure in 15 years time the X47Bs and offsprings will be supersonic with even more endurance and capability. The Jihad business is going to be a bit more challenging. Anyway, the unfortunate part is it will be soo long until we see a fully matured PAK FA/FGFA. In these times of austerity we surely miss the Cold War when multiple fighter designs and bombers and ICBMs and Subs get churn out from the factories like candy. 🙁
Had it been the cold war, we would have had so many pics uploaded here. Of course some of us might get weird parcels from some agency, or may go on permanent vacation and so on.
good point 😀 goes to show everything can be countered one way or another. though fast, they could still be vulnerable to IIR air to air missiles such as PL-10, AIM-9X, ASRAAM, especially in a head on engagement
These are lofted AAMs, there is no head on engagement with these missiles. They go way higher than an aircraft and come down on it like a meteorite. With big fragmenting warheads in excess of 50 kg, its like exploding an IED next to a thin aluminium Personnel Carrier. There is nothing much an AWACS can do against a salvo of such missiles.
What about AWACS killer like R 37 or K 100 or RVV BD.
very insightful indeed. Thank you.
Posted it in the last page. You have to follow Ajai Shukla for a while to sieve off useful info from his articles.
On one hand it is good, because by that time lots of things would have matured.
The missiles would have been mature. The propulsion would be the Gen next engines. AESA would have been mature and probably with new semiconductor materials. Avionics would be mature. And probably would have been remedied against EMP of 21st December 2012 superflare from the Mayan hall of fame. But it is really far away. On the other hand in that time frame the aggressor may no longer be the F22s or F35s but some lifeless drone piloted by some gamer freak half way round the earth:eek:.