Dhimas Afihandarin Profile picture
May 29 9 tweets 3 min read Twitter logo Read on Twitter
One Iranian ingenuity that catch my attention. The Fateh-110 Ballistic missile. It looks simple, practical and appears to be good enough Tactical ballistic missile. Image
let's cut to the chase, the estimates are done in 13 frequencies from VHF down to X-band, i would love doing 35 frequencies as usual but i just dont want to wait 8 hours for it to complete. The missile is usual PEC as it's a metalic airframe.
In case someone interested with separate vids. This one depicts the half sphere contour plot
This one is the contour plot. in flat form. This one might look pretty for a praying mats.
And now some numbers. the medianized RCS value of the missile vs frequencies. Unfortunately i havent been able to properly fit the data into a model (e.g Swerling) so cant provide PDF (Probability Density Value) of the RCS. Image
The PDF is important as it allows estimate of the likelihood of encountering specific RCS and therefore detectability of the target. Median is good but it only for limited angle.
The other presentation i havent able to provide was to give a time vs RCS value which more valuable as it takes account of the movement of the missile. ABM radar may detect the large side-aspect RCS of the Fateh as it breaks the horizon.
The contour plot tho reveal something nifty. namely the unique pattern produced by the missile's fins. these lobes are strong but narrow, so could be hard to pick. However if desired treatment is possible. Image
Guess that's all for now, back to other things. Anyway i'm always accepts commission for this kind of RCS visualizations. Also i can always use some support. as these kind of content does require processing power.

ko-fi.com/stealthflanker…

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More from @Flankerchan

May 30
I really wish more people use the Radar coverage tool courtesy of @CambridgePixel

As i got a feeling people think Air defense and Radar coverage is a perfect circle which simply not true. Here is an example of real world coverage of a Pantsyr guarding Moscow Image
The colors indicate the target altitude. the legend is in lower right corner of the screen. The green color shows coverage of a target moving at altitude of 30 meters. Not a perfect circle right ?
The other thing is the drone's RCS. This would give more constraint especially if they're flying low, and slow like a bird and there are many birds down there one needs to pick out. Like smol commercial drone can reach Sub 1 sqm already

Image
Read 7 tweets
May 29
Welcome new followers. I never have any milestone for follower numbers but. 2900 looks good. For those who stayed. Thank you.
For new followers, what content you would see here ?
1.Aviation related, fighter jets etc
2.Animes, Manga, pop cultures that i follow
3.My ramblings.
4.Radar Cross Section estimates of aircraft and missiles.
5. My personal work in Blender 3D;s or other graphic application.
6. Stuff about Radars and Electronic Warfares, particularly some simple mathematical stuff about them.
Read 4 tweets
May 28
So there was that bit tweets about fresh grad malding over someone with experience got accepted into a company, despite that he was graduated from reputable university.
Experience and more importantly professional certification matters. Which kinda make me thinking :x or maye worried as i have none.
Like i'm kinda feel pretty screwed. I graduated in Biology as major. But there was no real professional certification for environmental science here, no funds for postgraduate.
Read 5 tweets
Feb 5
So.. i look again at the 9M318 missile for Belarus's Buk-MB3K. Especially after watching video by Belarus TV OTN.. Then rewatching vid of Russian Buk M2's. Notice the position of the wings and overall shape of the missile.
The overall size however appears to be similar 5.5 m in length and total diameter of 40 cm. 9M318 tho is noticeably have shorter G&C (Guidance and Control) section and longer rocket motor compared to 9M317. The following are my rough approximate of the differences.
The shorter G&C Section is probably due to use of more modern 9B-1103M-350 Active radar homing Seeker, instead of Semi-Active 9E420 seeker. Other differences is the radar fuze is integrated to warhead section in 9M318 while 9M317 appears to have the fuze in the G&C section.
Read 7 tweets
Feb 3
Reconnaissance balloon eh. Aside from claims that it cannot be intercepted with currently available means.

It reminds me of Soviet era (and apparently still continued) Airborne laser program the A-60 and now "Sokol Echelon"

militaryrussia.ru/blog/topic-680…
The Soviets even think of dedicated "Dreif" aircraft based on Il-76.

a Dedicated "Balloon Hunter"
Lasers seems to offer the best chance to down it. US is of course not alien to lasers. Although it seems the development head to striking CRAM and small UAV target as well as miniaturization.
Read 4 tweets
Jan 3
One interesting shot from RuMOD video on Pantsyr operation :
The interface depicted is from Radar/Early Warning Operator. I tried interpreting them here :
I feel it's interesting as it depicts apparently the instrumented range of the Radar which is 40 Km with 5 Km intervals in range scale.
Read 17 tweets

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