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Everything posted by Mad_Shell
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same, pretty sure the thing is bugged right now. SAM radar continues to turn, HARM continues to track it down, and the SAM just eats the HARM without attempting to intercept it. Also, if you place 2 SAMs from different groups very close to eachothers, only the targeted SAM will "turn off" (without actually turning off, since it's bugged). The other SAM will magically know that he's not targetted and try to intercept the HARM.
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@NineLine I remember ED saying that if a target hits the notch, the Aim 120 will extrapolate it's position based on the target last location and speed vector, and reacquire the target if it goes out of the notch. In the Hobel's message juste above we see that it's not the case. Are you guys aware of this?
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I allow myself to up this report as I've had no answer that is has been looked at or aknowledged by ED.
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If I remember my testings right it also effects the flare resistance. I would need to redo some testing to be completely sure though.
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Whilr it's true that the aircraft IR emissions are just a few values (engine off, engine on, afterburner), the aspect IS taken into account in DCS. A heat seeking missile will have a lock on an rear aspect aircraft way sooner than on a front aspect one.
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no bug AH-64 True Airspeed on Up Front Display Incorrect
Mad_Shell replied to Shugsta's topic in Bugs and Problems
Is there some wind in the mission? If there is a 15 knots wind, then in a hover or on the ground the true air speed is 15 knots. -
Sorry, but you will need to begin to provide some proofs, because all I see is your feelings vs ED's research on that subject (including running CFD simulations). It's basic physics that an object moving that fast will lose speed very (VERY) fast at low altitude because of the air density. Check this discussion, a dude made some rough on-the-coin-of-the-table maths, and look at how big of a difference the altitude makes (https://www.f-16.net/forum/viewtopic.php?f=38&t=27373) Now if you won't listen to anyone so be it, but don't try to change everyone minds at how ED got it wrong when their research is pretty solid while you don't provide any proof.
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Yes, everything related to IR is very barebones in DCS. You won't get any tone on a flare or a heat source on the ground, flares are just a dice roll, and yes it's either off, on, or afterburner for aircraft IR emissions...
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This is not a 'true' DCS update, it's a map release. The new updates cycle has 6 weeks between updates. Last update was on the 10th of April, so the next 'true' update should be in about 3 weeks.
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missing track file AGM-114L does not work with FCR
Mad_Shell replied to JeRe's topic in Bugs and Problems
Did you disable the trigger guard? You can either disable it in the special options (see picture) or bind it (in this case you'll need to switch it in game before you can use the trigger).- 1 reply
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Military Assets for DCS by Currenthill
Mad_Shell replied to currenthill's topic in Static/AI Mods for DCS World
@currenthill Hi! I see that for the Storm Shadow and the Taurus missiles you use very high RCS values (0.21 for Storm Shadow, 0.9 for Taurus). Open source estimates for these missiles are around 0.02 square meters for X and K bands frequencies. These estimates are coherent wth the observations in Ukraine, where a Pantsir only detected a Storm Shadow at 5 km with its radar, and failed to intercept it. -
investigating S300 still Performance issues?
Mad_Shell replied to Skyhammer's topic in Ground AI Bugs (Non-Combined Arms)
Your F-16 is equipped with a jamming pod, which explains why the launch distance is reduced for the SA-10. However, it seems that there are serious inconsistencies with jamming effects on SAMs. The Patriot and SA-10 versions we have in DCS have pretty similar radar and guidance technologies, and it seems weird that the Patriot is so much more resistant to jamming in DCS. Also, I've tested jamming against the SA-2, and it manages to launch at around 27 km... So yes, very unrealistic that the SA-2 has better resistance to jamming than the SA-10. I hope things will get more fleshed out in this regard since ED announced they want to better model electronic warfare in DCS. Currently there are many problems with it across the board.- 3 replies
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- surface to air
- s300
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(and 2 more)
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When I said that the AI reaction was more realistic, I was talking about the RWR only, which seems to only indicate a launch warning in the terminal phase for them. Of course any semi competent pilot would anticipate a launch as you said. But that also supposes to have perfect ELINT. The SA-10 radar can switch between thousands of different frequencies, many only used in war time so that the enemy has never encountered them. I suspect quite a few radars show as "U" on RWR in real life...
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What we observe in DCS: A player engaged by a Patriot / SA-10B will see a lock alert on the RWR, and a launch alert as soon as a missile is launched. An AI engaged by a Patriot / SA-10B will not react until the incoming missile is around 20 km away. What open sources say: The FM-44-15-1 manual (Distribution statement A: approved for public release, distribution is unlimited) for the Patriot indicates that: "The missile is command-guided by radar to a point just prior to intecept. It is at this point that the unique TVM guidance mode begins. In the TVM mode, the radar set sends out a special waveform that illuminates the target. The radar sends an encoded uplink message to the missile that commands the missile to open its receiver for detection of the TVM waveform energy reflected from the target. The missile then encodes and sends boresight errors via downlink message back to the radar. Guidance computations are then made by the WCC and sent back through the radar to the missile via uplink message. This process continues until intercept." It is very clear that the target should not have any launch warning until a few seconds before impact when the target is illuminated. Since the AN/MPQ-53 radar used by the Patriot to guide the missile is a PESA radar capable of track-while-scan, it is most probable that the target has no lock alert on its RWR at any moment, even when the missile is being command guided toward the target before the final illumination phase. For the SA-10B we have in DCS (using the 5V55R missile), a very similar system is used, as described in the book "Невский бастион - Зенитная ракетная система С-300" (page 17) "The missile 5V55R employs an improved radio-command guidance method for targeting. This method combines radio-command guidance in the initial and middle stages of the trajectory with the "target tracking through the missile" method in the final stage. Guidance commands for the 5V55R missile are generated based on the coordinates of the target and the missile measured by RP, and the target tracking data from the onboard radar sight of the SAM – a method similar to that used in the American "Patriot" system." The book "THE RUSSIAN S-300 AND S-400 MISSILE SYSTEMS" also mentions midcourse commands and a final TVM guidance for the 5V55R missile. We can see that it's actually the reaction of the AI units (only reacting when the missile is about 20 km away) that is more realistic than the players having a lock warning then a launch warning as soon as the missile is fired. Now that we know that the target illumination begins at a predetermined range for these systems, do we have any clue about what this range could be? Yes, but only an indirect one! In the "'Review of Defence Annual Report 2002-03: Analysis of Department of Defence Responses" document, it is written about the 9M82 and 9M83 missiles used in the SA-12 (developped at the same time period as the SA-10B): "During midcourse flight the missile employs inertial navigation with the option of command link updates. In the former mode it transitions to its semi-active homing seeker during the final 10 seconds of flight, in the latter three seconds before impact – a technique preferred for heavy jamming environments." Even if the guidance method is slightly different, it gives a good insight at where the technology stands at this period: with midcourse updates from the radar (as it is the case with the 5V55R missile), the missile only needs the target to be illuminated for 3 seconds before impact! If you've read unitil there, you definitely seem to be interested into this subject, and I hope you'll enjoy the documents I cite or join FM44-15-1Pt1(87).pdf Review of Defence Annual Report 2002-03 Analysis of Department of Defence Responses.pdf Edit: this bug is linked to the broader problem with AI and radar guided missiles:
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DCS: Roadmap (unofficial - NO DISCUSSION HERE)
Mad_Shell replied to Silver_Dragon's topic in DCS 2.9
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What ShuRugal means is that splitting radios is not realistic for any aircraft we have, even if SRS allows it.
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Some questions and perhaps frustrations with this module
Mad_Shell replied to Typhonus2's topic in DCS: AH-64D
Funny because you should be doing the exact opposite Ball centered = aerodynamic trim, the aircraft flies in the most efficient manner, so you should use it when flying straight during en route. Nose to tail trim (centered flight path) should be used when maneuvering low around obstacles, to make sure you keep your tail clear of obstacles.