falconzx Posted August 17, 2024 Posted August 17, 2024 (edited) Well, today I had time to do it, and I'm trying to report another bug in the F-16's FCR. I had already mentioned the problem in another topic, but it's more appropriate to create a new one. Steps to reproduce: Place two aircraft facing you, both at the same altitude, in spread formation. Bring your own aircraft to the same altitude as the targets. Set RWS A1(optional) and B1 (this also to make the test easier to understand). TMS up on one of the two targets to switch to SAM mode, then return to A1(optional) because SAM has its default in A3. Now try to scan the second target. There shouldn't be major problems, although only in B1 can you get a fairly frequent illumination of the second target; leaving it in B4 is still very difficult because the scan periods are divided between the bars. Using B1 is also a way to make this test more reliable, at least we have the mathematical certainty that the second target will definitely be in the scan volume, always and in any case. Up to this point, the bug in question is not present. Now, bring the aircraft to a fairly steep pitch, +30/40 degrees. This is to better observe the problem, which is always present even with different attitudes, although less annoying. We will never be able to find the second target. Conclusions: In my track, second test, in the final part, I couldn't see the second target. I noticed, observing the elevation blue caret, that when switching to SAM, the elevation scale symbology changes its reference point. That is, if in SCAN the symbology has the horizon as a reference, in SAM it has the longitudinal axis of the aircraft as a reference. This is a choice, and not knowing the real aircraft, I assume it was made because it's correct this way. But the problem is not the symbology, but the movement that the antenna tries to make. In short, the antenna seems to try, starting from the target's elevation on a scale relative to the aircraft's pitch, with its movement to put itself at the point requested by the ANT ELEV KNOB in reference to the previous symbology (i.e., stabilized to the horizon). All of this is absolutely unnecessary, the antenna is already in the correct position, it just needs to stay there and continue sweeping, right and left! I hope I've been clear... If further explanations are needed, don't hesitate to ask, I'll try to describe the problem in other words. The track is attached. Thank you. F-16_DTT_Symbology change lead to incorrect radar dish position.trk Edited August 17, 2024 by falconzx 1 1
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