RCS OF Different Fighters

[localoca]

Please provide evidence that composites decrease RCS... I did not know that MKI was filled with composites.

Wood parts will reduce RCS...

 

[Manticore]

The impact of lowered observability can be dramatic because it reduces the maximum detection range from missile defenses, resulting in minimal time for intercept. The US airborne warning and control system (AWACS) radar system was designed to detect aircraft with an RCS of 7 m2 at a range of at least 370 km and typical nonstealthy cruise missiles at a range of at least 227 km; stealthy cruise missiles, however, could approach air defenses to within 108 km before being detected. If such missiles traveled at a speed of 805 km per hour (500 miles per hour), air defenses would have only eight minutes to engage and destroy the stealthy missile and 17 minutes for the nonstealthy missile. Furthermore, a low-observable LACM can be difficult to engage and destroy, even if detected. Cruise missiles with an RCS of 0.1 m2 or smaller are difficult for surface-to-air missile (SAM) fire-control radars to track. Consequently, even if a SAM battery detects the missile, it may not acquire a sufficient lock on the target to complete the intercept.

Radar scattering from any realistic target is a function of the body's material properties as well as its geometry. Once the specular reflections have been eliminated by radar absorbing materials, only nonspecular or diffractive sources are left. Non-specular scatterers are edges, creeping waves, and traveling waves. They often dominate backscattering patterns of realistic targets in the aspect ranges of most interest. The traveling wave is a high frequency phenomenon. Surface traveling waves are launched for horizontal polarization and grazing angles of incidence on targets with longs mooth surfaces. There is little attenuation from the flat smooth surface, so the wave builds up as it travels along the target. Upon reaching a surface discontinuity, for example an edge, the traveling wave is scattered and part of it propagates back toward the radar. The sum of the traveling waves propagating from the far end of the target toward the near end is the dominant source to the target radar cross section.

The radar cross section (RCS) of a target not only depends on the physical shape and its composite materials, but also on its subcomponents such as antennas and other sensors. These components on the platforms may be designed to meet low RCS requirements as well as their sensor system requirements. In some cases, the onboard sensors can be the predominant factor in determining a platform’s total RCS. A typical example is a reciprocal high gain antenna on a low RCS platform. If the antenna beam is pointed toward the radarand the radar frequency is in the antenna operating band, theantenna scattering can be signi?cant.

The traditional measure of an object's scattering behavior is the RCS pattern which plots the scattered field magnitude as a function of aspect angle for a particular frequency and polarization. Although suitable to calculate the power received by a radar operating with those particular parameters, the RCS pattern is an incomplete descriptor of the object's scattering behavior. While the RCS pattern indicates the effect of the scattering mechanism, it does not reveal the physical processes which cause the observed effect. In contrast, imaging techniques, which exploit frequency and angle diversity to spatially resolve the reflectivity distribution of complex objects, allow the association of physical features with scattering mechanisms. These processes, therefore, indicate the causal components of the overall signature level observed in RCS patterns.

Radar Cross Section (RCS)

 

[rabia tareen]

approximately equals to F16. or may be a bit lesser than F16 due to DSI and other aerodynamics. I think murad sir or other elite member can explain you more than me

there is huge difference between F16 and JF-17s but JF-17s is the better step toward the jet technology

 

[Manticore]

^^ he is comparing the rcs between the 2 fighters... and jft rcs is bested by only the newr f16s


jft blk2 with stealthy forward fuselage would perhaps make jft the least detectable fighter in paf inventory

 

[cobra309]

if all this is so then f22 can not b locked by any fighter? Can anybody clear?

 

[SBD-3]

 

[Tempest II]

Thanks for the image. However I thought the Rafale was/is supposed to have low RCS? I also expected the Mig-21 to be lower that 4?

 

[SQ8]

The Mig-29 having an RCS of 3m2??
The B-2 is actually stealthier than a 117.
The only thing stealthier than a B-2 is a F-22.

 

[VCheng]

RCS also depends on the geometry of the flight path relative to the radar stations and terrain, plus other factors. These are overly simplistic representations for a head-on view, which is only a tiny fraction of the entire mission profile.

 

[Manticore]

i think they are talking about frontal rcs...

 

[VCheng]

i think they are talking about frontal rcs...

I think so too.

("simplistic representation (of RCS) for the head-on view")

 

[SBD-3]

 

[SBD-3]

 

[LiberalAtheist]

the SU-30MKI is believed to have a RCS of 20 square meters due to its large size and lack of RAM in the air frame nonetheless its EW suite makes up heavily for that disadvantage

 

[navp007]

the SU-30MKI is believed to have a RCS of 20 square meters due to its large size and lack of RAM in the air frame nonetheless its EW suite makes up heavily for that disadvantage

n wer d u got 20 sq meter RCS.