This isn’t a silly idea at all, in fact modern Chinese VHF radars do exactly that to improve their precision locating targets. Since the L band arrays in the Su-57 have only one row of transmitters, this would provide a vertical location capacity that would be absent otherwise. What I don’t know is how much more effective the L band is compared to X band to detect VLO targets, especially considering that the L-band arrays are way smaller than the X band one in the nose. Maybe small targets like AAMs could be detected better since their physical features have a size in the region of decimeters as the wavelength.

Thinking further about the directional communication links, I am inclined to believe they should be available, more even after seeing today the Su-57 paired with the VLO Okhotnik. It would not make sense to create such a stealthy pairing and then ruin it all via omnidirectional communications. X-band radar arrays should be the selected emitters and the tail cone should include one transmitting unit, too. This is more logical/economical than having additional transmitters operating in other frequencies I think.

Different bands besides X-band can be effective as in they can be used for fire control. What we do know is that Lockheed implies same values at 2-16ghz, but does not show if 1ghz increases the value or anything above 16ghz increasing in value. I do not think the F-35 which will be the major backbone for the marines/navy/airforce would take the Lockheed approach because if they did SAM’s would immediately notice a target is approaching which can compromise its mission faster than the Northrup approach on the 1st image. This would ruin the “multi-role” purpose of the F-35 now if it was the F-22 built only for air superiority that would be a different story.

Current radar receivers cover like 1-18ghz give or take, GaN AESA based modules for EW systems have been told to cover UHF/VHF according to some Russian and US sources. So the next issue is photonic radars going up to 100ghz. Mikheeyev said the same multi-band radar technology can be found on the SU-57 when talking about ROFAR. So looking at the 1st image my focus is on the 17-100ghz tracking frequencies its more horrible than X-band but can be better than IRST around 300gh?.

ROFAR offers:

I am assuming frequencies 19-100 ghz might have a longer range in tracking than IRST but less than X-band. Lets say the SU-57 in the 1st image had material to go with the Lockheed approach and the same went for the F-22 and F-35. The SU-57 can expose different bands and the 1st image does not tell what distance both targets were taken we assume the same distance and there is the fact that we do not know which company focused the most on what frequencies. F-22s, F-35s and even the SU-57 can’t be too negligent on lower frequencies than fire control if some of their mission purposes are to fly through enemy SAM territories.

I have heard from Austin at the other thread of the different frequencies host missile radars can operate in and one such case is K-band. L-band might offer less tracking capabilities than X-band but K-band cant be jammed, see the stealth target a little better since it also not optimized as much as the other lower frequency firecontrol bands to absorb those frequencies. Than there can also be enhanced tracking performance as well.

[USER=”1724″]djcross[/USER]

S111 uses the same Hf frequencies as the link 16 with small data exchange.

France will be in charge of the infrared systems, Japan will be in charge of the electronics. So which European country would be the best at making good aircraft engines that offer good ranges and speed?

I guess I was right after all about a certain idea I presented earlier when a certain user made a joke out of it:rolleyes:

https://topwar.ru/159438-predstavleny-proekty-jadernyh-reaktorov-na-avtomobilnom-shassi.html

Automotive chassis nuclear reactor designs presented

At the military-technical forum “Army-2019”, the research and design institute (NIKIET) named after N.A. Dollezhal presented projects of unique reactor installations, including on a car chassis. These are promising installations that, if implemented, will significantly expand the boundaries of peaceful uses of nuclear energy

“What installations are you talking about?

We are talking about promising designs of reactor plants of relatively small nuclear power plants: ATGOR, Shelf, Vityaz and UNITERM.

Earlier it was reported that such mobile nuclear reactors (auto nuclear power plants) can be used in areas with limited electric power resources – remote settlements. Mini-nuclear plants make it possible to reduce the cost of electricity, since the kilowatt-hours generated by a mobile reactor will cost about 1.5-1.7 times cheaper than the same kilowatt-hours produced by diesel-fueled diesel plants, which have to be brought in hundreds of km .

The reactor is equipped on a car chassis – in a protected capsule. According to some reports, it is planned to use an autonomous cooling system.

Today, NIKIET, which is part of Rosatom Corporation, acts as the chief designer of research reactors in the Russian Federation with a capacity of 100 MW (these are the SM-3, MIR, PIK units), the IBR-2 fast rector, and the MBIR multi-purpose fast reactor under construction.”

Nuclear reactor powering FICs based radars with improved missile technology in the future will sure make some dangerous SAM designs. I wonder how greatly these power sources would enhance laser and microwave technology. Just another pain in the ass for future air forces to worry about and this could enhance coverage for their airforce as well.

https://www.grc.nasa.gov/WWW/K-12/airplane/lowhyper.html

For aircraft speeds which are much greater than the speed of sound, the aircraft is said to be

hypersonic

. Typical speeds for hypersonic aircraft are greater than 3000 mph and Mach number

M

greater than five,

M > 5

. We are going to define a

high hypersonic

regime at

M > 10

to account for re-entry aerodynamics. The chief characteristic of hypersonic aerodynamics is that the

temperature

of the flow is so great that the chemistry of the diatomic molecules of the

air

must be considered. At low hypersonic speeds, the molecular bonds vibrate, which changes the magnitude of the forces generated by the air on the aircraft. At high hypersonic speeds, the molecules break apart producing an electrically charged plasma around the aircraft. Large variations in

air density

and

pressure

occur because of

shock waves

, and

expansions

.

https://www.1tv.ru/news/2017-05-21/325643-v_rossii_uspeshno_proveli_ispytaniya_novoy_giperzvukovoy_rakety_tsirkon_ne_imeyuschey_analogov_v_mire
The accelerating block takes Zircon to the desired orbit, after which it accelerates to its maximum speed and moves to the target at an altitude of 30-40 kilometers, where the air density is minimal. Radars at this speed simply do not see him, anti-aircraft missile systems are useless. But, according to experts, the gigantic overloads, the rocket moves in a cloud of plasma. Super durable materials, overload resistant electronics are needed.

So I am assuming that high hypersonic speeds in low altitudes are able to form plasmas according to these 2 different sources in which some claim makes you completely invisible. So I guess 7th gen aircrafts will be called the true stealth gen fighters:highly_amused:. If only the mig-41 could go slightly faster than mach 4.3 :confused:

[FONT=”Roboto”,arial,sans-serif]https://www.air-cosmos.com/article/maks-2019-le-dmonstrateur-de-radar-m…[/FONT]

The Russian electronics group Kret now includes most of the technological gems in the field of avionics, electronic warfare and radar. Due to the security context, Kret no longer presents any of its equipment at the Maks show. However, the exploitation of recent scientific publications and company newspapers makes it possible to judge the dynamism and often original approaches of Russian scientists.

Thus, in order to optimize the Mig-35 export opportunities, Phazotron has developed a new Aesa radar with a range of 170 km, the Zhuk AE-AR. Most importantly, in cooperation with the Baumann Institute in Moscow, Phazotron has produced a multi-function radar demonstrator for UAV 35kg in Ku-band, and not in X-band as its Western competitors. With weather, radiolocation, altimetry, and Gmti modes, its SAR imaging capabilities with a range of 80 km could be as low as 25 cm. But especially the use of the Ku-band would allow it to resist a large part of the NATO jamming systems.

https://www.kret.com/media/press/kret-primet-uchastie-v-sankt-peterburgskom-arkticheskom-kongresse/ There website is back up.

“KRET will take part in the St. Petersburg Arctic Congress
Avangard OJSC is a part of KRET JSC (part of Rostec State Corporation) will present its solutions for the development of the Arctic zone of the Russian Federation at the St. Petersburg Arctic Congress “The Arctic – Territory of Association of Competencies”.
On August 29, the LENPOLIGRAFMASH congress center will host the St. Petersburg Arctic Congress “The Arctic – the Territory of the Association of Competencies”, organized by the St. Petersburg Committee for Arctic Affairs.”