June 4, 200422 yr No way, Claudio, take a look at this:http://forums.avsim.net/user_files/78805.jpgI'm tracking 287 in LNAV, wind coming more or less from the north. In order to compensate, the autopilot has correctly turned the a/c to a heding of approx. 293, i.e. into the wind. Look at the down-pointing arrowhead above the compass arc, THAT is where the a/c nose is pointing.This is also confirmed by glancing on the good old compass on the window post. Cheers, Søren DissingIntel i9-13900K @5.6-5.8 Ghz | ASUS ROG RYUJIN III | ASUS ROG Astral RTX 5090 OC | ASUS ROG Maximus Z790 Hero | 64Gb DDR5 @5600 | 1Tb Samsung M.2 980 PRO (Win11), 1Tb Samsung M.2 980 PRO, | ASUS ROG Helios 601 | 32” ASUS PG32UCDM 240hz 4K | Chaseplane | TM TCA Captain's Edition, Winwing FCU + EFIS L/R, Tobii 5 | Win 11 Pro 64 | MSFS 2024 | BA Virtual | PSXT, RealTraffic w/ AIG models
June 4, 200422 yr But Claudio You are in HDG SEL for crying out loud! :-)When in HDG SEL the A/P doesn't give a darn about the TRACK!And you will never ever see this while in LNAV. I won't believe that you did until you prove me wrong with some screenies. ;-)TGIF :-beerchugHow does that sound? ;-) Mats JohanssonPMDG Flight Test Dept | Asus Z270-A | Intel i5-7600K @ 4.8 GHz OC/H2O | nVidia Geforce GTX 1070 8GB OC/O2|
June 4, 200422 yr Ok well here is another example that I have seen. When on APP on final if the wind is from the right the nose of the aircraft is pointed left of RNW heading. I know the aircraft is flying a path because it is locked on the localizer why after I disconect A/P do I have to apply right rudder just prior to touchdown to correct to RNW heading? Shouldn't this be nose right of RNW hdg and correct left prior to touchdown? Note: I just want to make sure everyone else is as confused as I am now lol ________________________________________________________________________________ Jeremy 9800X3D OC'd -30 +200MHZ | 64GB CL30 RAM | RTX 5080 | Windows 11 23H2| Bravo Throttle | Alpha Yoke | CH Pedals | Logitech Radio Panel | SmoothTrack | AAO
June 5, 200421 yr >>Ok well here is another example that I have seen. When on APP on final if the wind is from the right the nose of the aircraft is pointed left of RNW heading. I know the aircraft is flying a path because it is locked on the localizer why after I disconect A/P do I have to apply right rudder just prior to touchdown to correct to RNW heading? Shouldn't this be nose right of RNW hdg and correct left prior to touchdown? < ________________________________________________________________________________ Jeremy 9800X3D OC'd -30 +200MHZ | 64GB CL30 RAM | RTX 5080 | Windows 11 23H2| Bravo Throttle | Alpha Yoke | CH Pedals | Logitech Radio Panel | SmoothTrack | AAO
June 5, 200421 yr Now that we talking about HDG and TRK (drift angle) how do you calculate the exact headwind component. For Example: I'm flying at a "TRK" of 270 degrees and there is a wind of 290/45. Then wat is my exact headwind component? VREF calculations are: VREF30/40 + the steady headwind and then add half the figure of the total "gust"Thats how it is in the performance pages. How do you calc. the gust?Thanks people,
June 5, 200421 yr RamonThis is a simple trigonometric problem.If you are flying with your nose pointing to 270 Mats JohanssonPMDG Flight Test Dept | Asus Z270-A | Intel i5-7600K @ 4.8 GHz OC/H2O | nVidia Geforce GTX 1070 8GB OC/O2|
June 5, 200421 yr thanks, but I mean TRACK 270 so the drift angle should be a HDG of about 278.Thanks anyway.PS do you mean the PROG. page 2??
June 5, 200421 yr YesThanks Ramon, I do mean PERF page 2 :-)Cheers, Mats JohanssonPMDG Flight Test Dept | Asus Z270-A | Intel i5-7600K @ 4.8 GHz OC/H2O | nVidia Geforce GTX 1070 8GB OC/O2|
June 7, 200421 yr "Sinus and Cosinus values of the according angles..."Or Sine and Cosine, depending on where you come from ;-) If you haven't studied Trigonometry in high school, then quoting sin and cos may not be of any value to you. However, there should be a calculator on your Windows Start Menu (Accessories) with a "Scientific" option. Type in the angle, then hit the "sin" or "cos" button. Then multiply the resultant value by the wind.Hope this makes sense.Cheers.Ian.
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