myHelljumper

Hi, First I want to thank you for this detailed analysis, it looks well done, pertinent and your questions are interesting. I will try to answer them and go beyond. We can be sure that the aircraft starts at around 100% fuel thanks to the displayed Jx at the start of the video: 0.68/0.69. The Jx represents the acceleration of the aircraft and is very important because it indicate the good health of the engine. For a standard atmosphere, 15 °C, sea level and no payload, the Jx should be at around 0.68. Thanks to the above we know that the conditions are likely close to a standard atmosphere and 15 °C. Now let's talk about altitude. At 2:17, just after the sustained turn, we can see that the aircraft is at around 800 ft barometric (3000 ft radar but the radar altimeter must be displaying incorrect information) and from other parts of the video, I can guess that the airbase is the BA115 Orange-Caritat located at 200 ft MSL. So the aircraft is flying at around 1000 ft MSL, I find that at that altitude, standard atmosphere, 15 °C, 75% fuel the aircraft can sustain 6.9 g. Now let's talk about temperature. The M53-P2 is very susceptible to temperature changes as a 15 °C increase in temperature reduces the engine thrust by ~5%. If I test at 20°C with a standard atmosphere, 75% fuel the aircraft can sustain 6.8 g. I find that even allowing reasonable deviation, the module is deviating at a maximum of 0.1 g from the video. Let's also take into account that in the video, the pilot is not aiming for a perfect sustained turn and we can see in the screenshot that he is gaining a little bit of speed (acceleration chevrons above the FPM). A perfect sustained turn would result in more load factor. I hope this helped to demonstrate that our model is coherent with the real performances of the aircraft, I'm open to continue talking about this video or about other data-points that we have like the engine out landing procedure to further demonstrate the accuracy of our model.

Please guys be respectful. I welcome constructive discussion and criticism and don't want it to be shut down. Let's be respectful of everyone and try to move this discussion forward.

I can see them, I don't know why you can't. Here are the links Video screenshot: https://cdn.discordapp.com/attachments/1037846602670407700/1037857598881402971/image.png Mirage turn rate chart a sea level : https://cdn.discordapp.com/attachments/544216334045544448/1016340654353305681/unknown.png

While we effectively don't have concrete performance documentation (because none are available to the public), we didn't formulate the FM by only "cobbling together piecemeal sources". We based the FM on known data points like the video above and procedures like the engine out landing that give us a very good base for what the aircraft should be capable of. We then built the FM following aerodynamic studies to create the coherent and realistic wing. After that we talked with SME about the behavior and performance of the aircraft to fine tune FM where needed. While I'm sure our FM is not 100% correct to the real aircraft in the whole domain, I think it's a good enough representation and most of all, the closest possible with the data available to us. We also have demonstrated, using the video above, that the Mirage STR at around sea level and 400 kt is correct while we have yet to see a credible source that would demonstrate that the aircraft performances are incorrect. But don't get me wrong, I agree that our model is not based on turn rates from actual documentation and thus is not as solid as the DCS F-16 model for example. People are right to question the authenticity of the Mirage FM but we are providing a lot of information to backup our model. Thanks.

Hey everyone, I just wanted to share the following with you guys From this video at around 2:15 we can see the following : 400kt, 6.8 g, PS~0. For this video the Mirage most likely does not have 100% fuel and surely is at least a little bit above sea level. If we compare with the DCS Mirage: I find that we are pretty close :).

I want to join Alpha in thanking Chuck/Charly_Owl for his guides that are a invaluable help for the community.

Hi, The SERVAL RWR is limited to 1 character/symbol to identify threats, that is why your customization is "faulty". We don't plan on changing this behavior as it is realistic. Thanks.

Hi, These default settings are not available to be edited at the moment, we will think about implementing them in the future? The Mirage data cartridge only load navigation points. Thanks.

It's not like Kercheiz wrote the FM . Can we ask for a source or is that common knowledge ? Can we also have a source on that ? Because we used some publicly available documents that details the M53-P2 thrust and consumption curves to create the engine. We reduced its thrust compared to the document as they didn't take some limitation into account so if anything it can be slightly underperforming. How do you know how the 2000 is supposed to perform compared to these aircraft ? Can you create a separate bug report with tracks or videos that highlight these CDVE issues ? Drag was tuned using SME feedback as well as know procedures like the engine out glide and landing procedure, will you also tell us that this is incorrect ? If you want to have a constructive discussion, drop the superiority tone. I'm not the only one that is finding you unconstructive here, maybe everyone is not wrong and maybe the issue is your tone, I really don't want to close this topic but it's only up to you.

3 year flaming necro, how nice. Please be nice to people, your behavior here is not constructive and I will lock the topic if the flame war resumes. If you have issue with the Mirage FM please create a post/bug report with a video/track of the behavior and your sources showing the behavior incorrect. Thanks.

I did a cold start 2 days ago and it was working as expected, can you share a video of you doing a cold start ? And a screenshot of the Mirage special option too please. Thanks.

I'm not understanding the issue, could you provide use a track or video highlighting the issue ? Thanks.

Yeah, and that's why it's a guide and not a manual, it's bound to be missing information compared to the manual. That's the point ^^. You would have to ask Chuck it's been a long time since I read it.

The above is also explained in the manual and was detailed in the patch notes and kneeboard, RTFM guys :).

As said above, this is the only solution we found to have all flare/chaff combinaison possible with the pod. The CM selection system for DCS is quite old and was not designed to support countermeasure pods or aircraft with fixed CM mixes and quantities. We tried to remove the sliders, but without them the CMs were refilled when rearming the aircraft. For the CMs to work as intended, the slider should be kept at their initial values which represent the absolute maximum chaff and flare capabilities of the aircraft, not the number of flare that will be available. Hope the above helps, thanks.

Sorry, I don't understand these sentences as questions. Anyways, I answered your question, the Mirage 2000 design resolve a lot of the issues that previous delta winged aircraft had. Thanks.

Again, based on what data ? The Mirage 2000 is not a Mirage III or a F-106, it's design is very different: The wing behave like a LERX delta thanks to the strakes on the intakes which is less draggy than a delta. The aircraft is unstable, needing the elevons to counter the nose tendency to climb in a turn, reducing the drag The slats helps a lot with the drag at AoA. As I said before, we tuned the FM based on SME feedback and known data-points like videos and procedures. We were forced to use these methods because no reliable public data exists for the Mirage 2000 turn performances. Again, "armchair pilot knowledge" cannot be used to tune an aircraft FM. So unless you can provide solid, numerical data (STR, ITR) for the module that obviously does not make sense, we cannot take your feedback into account. Thanks.

The Mirage radar illuminates the target and the Super 530D guides on the reflected radar waves, that's how all SARH missile works. Some missile have some datalink so they can guide before they see the target. This means that the missile can also guide on a jamming aircraft without its supporting radar. Thanks.

Hi, Unless you have data on the Mirage turn rate, we will stick to our model which is based on SME feedback and known data points. We can't use "this plane should be inferior to this plane" feedback as it is not based on true data. Thanks.

Hi, A radar guided semi-active missile like the Super 530D has half a radar in it's nose, its seeker is a radar antenna that can only receive radar waves, not emit them. So even though the Mirage radar is still tracking the target, the missile might decide to track the chaff cloud instead. The opposite can also happen, where it's the radar that is tracking the chaff while the missile tracks the target. In the first scenario, you can't really do anything about it, the chaff cloud will dissipate or the target aircraft move away from it so it is not illuminated anymore, the missile is lost. In the second scenario, if you manage to understand that your radar is tracking chaff, the missile might still be flying toward the target so you can switch to PSIC Super-pointé mode to "manually" illuminate the target with the radar. Hope the above helps, thanks.

Hi, The Mirage 2000C has no AoA display on the VTH. The AoA was included as an option in previous version, before the VTH rework. Now, we included an option to have the AoA indicator always visible so 2D player can still see it without TrackIR. Thanks.

All is correct

Hi, Thanks for the tracks. We were able to find a bug where the LOS check was not done in some case and fix it. The fix should be able next update.

Hi, can you provide a track showing the issue ? Our implementation takes line of sight into account so it's a strange bug. Are you sure that the TAF target is still update and does not just follow the last target course ?

Exactly, using the D2M in an air-to-air mission is counter productive. You'll most likely only get false alarms/wingman fired missiles and at the point where it could be useful, you'll most likely not be able to evade de threat. All that on top of consuming your precious MAGIC coolant.