Scoop Posted September 5, 2023 Share Posted September 5, 2023 Anyone seeing a reason why the analogue airspeed indicator is always 5 knots behind the airspeed indicated on the HUD, CDU and HMCS? Not sure it should be like this as I would have thought all indicated airspeeds should be the same? Behaviour is the same in ST and MT. Asus Dark Hero X570, AMD 5800x Oc to 5ghz on 2 cores, RX6900XT Reference Oc to 2700mhz+MPT, All on Custom Water Loop, 3600 CL15 XMP, 2xCrucial P5P 1T M2, Hotas Warthog, Reverb G2, Latest DCS Open Beta and VR only A10CII and AH64D, Nevada, Persian Gulf, Syria, Marianas, Caucasus Link to comment Share on other sites More sharing options...
jaylw314 Posted September 5, 2023 Share Posted September 5, 2023 In that screenshot, if anything, the ASI seems to indicate about 5 knots faster than the 205 knots in the HUD. IIRC, the HUD airspeed comes from the CADC, and I can't remember if it defaults to IAS or CAS. The difference would be pretty tiny, but we're talking about a pretty tiny discrepancy. Link to comment Share on other sites More sharing options...
Solution ASAP Posted September 5, 2023 Solution Share Posted September 5, 2023 That is normal and accurate. It’s just the analog guage and the digital system not being perfectly synced. The analog guage isn’t super precise. 1 1 Link to comment Share on other sites More sharing options...
Scoop Posted September 6, 2023 Author Share Posted September 6, 2023 Thanks for the reply guys. Asus Dark Hero X570, AMD 5800x Oc to 5ghz on 2 cores, RX6900XT Reference Oc to 2700mhz+MPT, All on Custom Water Loop, 3600 CL15 XMP, 2xCrucial P5P 1T M2, Hotas Warthog, Reverb G2, Latest DCS Open Beta and VR only A10CII and AH64D, Nevada, Persian Gulf, Syria, Marianas, Caucasus Link to comment Share on other sites More sharing options...
Sn8ke Posted September 6, 2023 Share Posted September 6, 2023 (edited) I believe the Airspeed Indicator is tied directly to the pitot-static system, and the HUD airspeed comes from the Air-Data Computer (ADC). I flew a plane at work the other day that has two analogue air speed indicators, and a PFD airspeed indicator. There was about a 12-knot difference between all 3 lol. Edited September 6, 2023 by Sn8ke 1 Asus ROG Maximus X Apex//Core I7 8700K @ 5.3Ghz //32GB DDR4 RAM//Asus 3090 RTX//4K monitor w/ TrackIR 5 Link to comment Share on other sites More sharing options...
jaylw314 Posted September 6, 2023 Share Posted September 6, 2023 (edited) 2 hours ago, Sn8ke said: I believe the Airspeed Indicator is tied directly to the pitot-static system, and the HUD airspeed comes from the Air-Data Computer (ADC). I flew a plane at work the other day that has two analogue air speed indicators, and a PFD airspeed indicator. There was about a 12-knot difference between all 3 lol. As far as I can tell, you're correct, the ASI is a pitot/static instrument, although I'm assuming in DCS that subtle distinction is not simulated, and the difference is just a graphical glitch. Edited September 6, 2023 by jaylw314 1 Link to comment Share on other sites More sharing options...
Insonia Posted September 6, 2023 Share Posted September 6, 2023 the HUD and ASI deviation remain the same all the way regardless temp and pressure settings. From densest air to thinnest air, and 15C 29.92inhg it might be just a visual, so far i can tell. Link to comment Share on other sites More sharing options...
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