ATC don't seem to agree with me that I am on course and following the flight planned route....even though as indicated in FSNAV I am following it virtually 100% accuratelySet up: Fs2004, RC ver 4.2.3831, Active Sky (1 off download no updates as I am flying) Ai Smooth, POSKY 744F, HJG DC-8 F... 3rd party panels and instruments and non standard FS2004 Autoplilots in both cases it has to be said. FSnav used to generate and save route....used in FS and RC as well as monitor progress like radar!I have unchecked gyro drift and slider to left under a/c realism.No problems in taxi and departure phase then early on say 10-15 miles out I am told I am off course and to turn to headingxxx. FSNav will show I am on course! Even turning to the heading requested is not good enough and the instruction will be repeated over and over ad nauseum...I follow the flight plan very closely using GPS or Civa INS, but it's not good enough for ATC who continually every min or so want me to fly thier heaing until I can resume normal nav, and no matter what I try to do on and no this goes even flying their heading doesn't seem to satisfy them until maybe I am off course! It's as if RC's world is off set from the FS one somehow. I tried rebuilding the scenery database in RC but it has not helped either. Navaids all seem to line up properly, it's just the controllers who don't seem to know it!!??I cannot figure out why RC ATC can't see I am on the route of the plan as filed? GPS even flys adjusting for wind drift to keep me on course. App vectors I fly as requested but I am contiually told repeatedly to fly heading xxx even though I am! I have tried altering the devaitions setting to 90 degrees in RC to no effectAny ideas? Is it the non standard panels / instruments some how? As they are rather essential is there a workaround? I have been using HJG's panels in the DC8 and Panel for the Boeing 747-400 featuring some gauges from Ken Mitchell and Glenn Copeland by Thomas Meier....Works with the default 747 and the Boeing 747-400 from Project Opensky ( Posky ).Otherwise looking good, but this is ruining things!Phil

Just had a thought - is this related at all to how you export ht eplan from FSNAV? RC will open .pln files (as FSNAV will save) and .apl files (which FSNAV can export)....I have been using .pln files...perhaps I should try .apl files?Pelase advisePhilip webb

never use .apl filesuse the fs9/fsx .pln formatjd

don't change the heading deviation to 90!until rc controller tells you to resume own navigation then as filed, you're his. not your gps's.were you told to fly 180 degrees from on course? if so, then you missed a checkpointif you're about to contact approach and you're told to fly 90 degrees from on course, then you missed your crossing restrictionjd

Ok I what value should I put in the heading deviation box?Point taken....I had departed and flown the sid and proceeded on course....and just flew the flight plan, or thought I was, my instruments told me I was, the controller said I wasn't and gave me a heading - I turned to it and he told me to fly the heading and got irrate as I was not complying - even though I was!!!!???I was not told to go back as I had missed a waypoint.Even when told to fly a heading by the controller and I do so I just get it repeated to me againa nd again, even though I am flying his heading?Not missed any crossing restrictionsPhil

BTW - how accurate are you expected to be - I wondered if I had to correct for wind drift, but it would only have been a few degrees!?On another flight into Atlanta I was given vectors to the app fix and told fly xxx, and I did usin the a/p heading bug, and again I clearly was not doing it as far as atc were concerned as they just kept repeating the request, I tried several headings +/- 5 degrees or so either side of the requested to no avail....repeated requests followed all for the same heading!Phil

have you flown any of the tutorials?you have to pass with 2 miles of a departure procedure fix, to get credit for ityou have to pass within 5 miles of an enroute fixthe first line of the display tells you where i'm expecting you to flyfollow the directions at the top of the forum on how to create a .logmake sure you click debug BEFORE loading the .plnthen duplicate your problem and send me the .logjd

OK - will do asap....might be a day or two though...thanks

Some things to check and try:In realism settings or wherever you should have the compass settings as magnetic or something like that.How does your aircraft heading throughout a leg compare to the bearing to the next waypoint as shown in the RC window.Fly a plan with a default aircraft and panels, then refly it with your desired aircraft.In general options for now try setting a heading deviation of 25 degrees.If your first waypoint is within 30 nm of departure, you will get a clearance of fly as filed. That means you should turn toward the waypoint as soon as you can above ground. The heading should match the bearing in the RC window with your set deviation allowance.Avoid waypoints that are very close to lift off to insure you have time to adjust to the heading of the next waypoint and fly over it.Unless the SID is in your plan and it matches what the aircraft will fly, you can get out of synch with RC. Make sure your AP follows the waypoints common to both plans and uses the heading expected by RC.Be aware that if you are getting vectors and then told to resume own navigation you do not return to the original path but establish a direct-to from your present position to the next waypoint.Just some things to consider.

OK - it looks as though I might have stumbled across the answer here!?Deciding that there was no time like the present, I decided to fly the route again tonight (UK) (and create a log file), and did so without any problems whatsoever!!! No heading issues with ATC at all , not even when I strayed a little off track to see what might happen! When given vectors on approach I flew them and ATC did not contiually repeat the heading requests.....they were suddenly satisfied that I was doing as requested!The only thing different to my settings this time as far as I can tell was that I did not load the flightplan into FSNAV as well as the a/c GPS before I set out.Ususally I might create a plan and save it etc. but not deactivate it in FSNAV before flying the route....this time as I had already created a plan I loaded it in FS into the GPS systems and departed, it was not until airbourne that I realised that I had not loaded it into FSNAV as well...and I did not bother to in order to test if it had an effect (I suppose I could have once airbourne but I didn't!!!)It seems to me that the kind of problem I was having was as a result somehow of a conflict between FSNAV and the a/c nav systems both having the route loaded? Could that be so? Would ATC in RC be getting two sets of a/c positional data and as such be 'confused'?Unless my hitting GPS earlier in the flight to follow the sid as closely as possible out of DFW might have pleased atc!!?? (But I was flying it closely earlier so I doubt this and in anycase why would that jinx the whole flight??)Comments?Phil

Ron thanks for the reply - please see my latest one above yours....A/c heading is good save for crab angles to compensate for wind drift where required....I set my deviations to 40 degrees....IN FACT THATS ANOTHER NEW SETTING I used in the above flight tonight.Re Sids - point taken - The DFW sids out of FSNAV do have a very close in waypoint, you are already over it and past it in the initial climbout before you are ready - I guess a flight plan tweak might be in order??!!thanks againPhil

Phil,Make sure that you don't have more than one Flight Plan stored for the same two airports - and that you check your waypoints before you take off or even before you choose Radar Contact.A 40 degree deviation??? Might as well get out and ride a bike!Deviations I use are: Heading: 10 degrees. Altitude: 200 ft. Speed: 20 kts. That's in a Citation X from Eaglesoft.Bottom line: If ATC says "Fly heading X, descend and maintain..." then do it. Follow the waypoints in the ADV Display no matter what OR request a "Direct To" if you have the wrong Flight Plan filed.If he says "Proceed direct to" that means stay on the SAME heading until you reach the next waypoint, THEN proceed "on course" etc.These guys get their hair on fire when you miss an altitude crossing.Good luck and keep practicing.:-spacecraft

i don't see how that would have anything to do with it. i get my lat/longs from your .plnif you follow departure instructions, or fly you dp, then follow the center's instructions until you can resume own navigation then fly your .pln you'll be finesounds like you might have missed a checkpoint in the dp because you were letting a machine fly it, and it wasn't coming close enough. just a theory. i could be wrong.jd

>If he says "Proceed direct to" that means stay on the SAME>heading until you reach the next waypoint, THEN proceed "on>course" etc.>I am going to disagree on "SAME heading" statement. A Proceed Direct-To means you fly whatever heading is necessary to get from your present position to the dictated waypoint. As in real life future versions of RC might dictate "short cuts" at times to reduce total travel when conditions allow.

I don't have FSNAV but it sounds like you let FSNAV control the plane when you keep it active. Perhaps that is your conflict. Depending on your panel setup it masy not do the job well. In addition FSNAV might use predictive turns to keep you inside the bounds of a path missing a waypoint on a tight turn if RC expects you to cross it within the two mile limit during departure. In predictive turns the heading could go outside of tolerance before RC expects the turn to commence.To rephrase what JD stated, you must navigate the plane by whatever means to follow ATC commands and if indicated cross the waypoint within bounds. Another issue has to do with very long legs. There is a difference between Great Circle navigation and the point-to-point navigation used on shorter legs. My experience shows that the GPS offers more accurate planning route once you resume your own navigation.For similar discussions search this forum on "FMC" for lively discussions.