YJ-18
71038d1dgy1icfoscrp7og20y20fnu0z.gif
 

Attachments

  • 006qLVAkgy1icfpontrn1j31ij0uoe2d.jpg
    006qLVAkgy1icfpontrn1j31ij0uoe2d.jpg
    324.1 KB · Views: 28
  • 006qLVAkgy1icfpontu4xj31ij0uoh6p.jpg
    006qLVAkgy1icfpontu4xj31ij0uoh6p.jpg
    300 KB · Views: 27
  • 006qLVAkgy1icfponusuoj31ij0uoh82.jpg
    006qLVAkgy1icfponusuoj31ij0uoh82.jpg
    311 KB · Views: 32
Sizzler for those who didn't know.
 

Attachments

  • 3M54-1 Kalibr SS-N-27 Sizzler1-45c4da70.jpg
    3M54-1 Kalibr SS-N-27 Sizzler1-45c4da70.jpg
    702.8 KB · Views: 26
  • YJ-18-a.jpg
    YJ-18-a.jpg
    35.2 KB · Views: 28
Last edited by a moderator:
Made an RCS estimate for YJ-12/CM-302 missile. Think might be interesting as the missile along with Brahmos are actually considered by our navy for shore defense program. Right now Brahmos have the advantage. Anyway Unlike Oniks or Brahmos which basically a flying stovepipe, YJ-12 have more complex geometry with 4 inlets. So modeling it basically take more effort

YJ-12/CM-302 ModelOniks/Brahmos Model
Yj-12 Side.png Oniks Side.png

Both missile have inlet modeled, the Oniks is simpler, YJ-12 have this :

CombustorModeled.png

Unfortunately i wasnt able to found any reference image on the Inlet duct layout, flameholder and fuel injector for YJ-12 model so this is kinda speculative and based on layout from E.Fleeman's "Tactical Missile Design". For the estimates HFSS are used, no radar absorber treatment for both missile. The Seeker is assumed to be hidden in bandpass radome, which designed to reflect all the bands not within the operating range of the missile, essentially simplifying the simulation as the radome now can be treated also as PEC. The Estimate runs from VHF band of 100 MHz down to X-band of 12000 MHz. Polarization is Horizontal. As for how to derive the numbers is based on "Equivalent Spherical RCS" which median multiplied with 2 from data taken in frontal angle of 120 x 45 degrees.

YJ-12 Model (example interaction vs VHF band)​
Oniks/Brahmos Model (example interaction vs VHF band)​
302VHF.gif OniksAnimated.gif

Above is some interaction example for VHF, there are others but i need to compile them into full video first.

Result wise, kinda show both missile models arent that much different signature wise.

Matching.png

There are some advantage for YJ-12 model but is 7% really significant ? This roughly translates to 20 km of detection range advantage for YJ-12 model (e.g enemy radar can detect Oniks in 100 km, YJ-12 at 80 km). The tabulated form for those interested are here :

TabulatedData.png
 

Similar threads

Back
Top Bottom