With some regularity lately RC suddenly starts telling me that I am off course and should fly another heading until I can resume own navigation. The problem is that I am bang on course, following the line on the GPS. The flight plan in the GPS shows as still correct but RC now thinks that the next waypoint is one that I have passed some time back, hence the direction to fly a different heading that would take me way off course. This happens whether or not I am using MCE. It does not happen on every flight but often enough to be quite annoying. The only way out of this situation is to specify in both RC and the GPS a direct course to my final destination. Does anyone have any experience with this probelm and/or any ideas about what may be wrong.

Watcher,It sounds like you have not been credited by RC for passing a waypoint. There are several reasons why this could happen. Failure to acknowledge an instruction or chatter between ATC and other aircraft in your vicinity are two of the more common reasons. The quick solution is to press 9 and then request DirectTo and enter the number associated with the waypoint you now wish to be active for RC.Always keep an eye on the top line of the RC display as it shows the active waypoint as far as RC is concerned. make sure too that you pass within 4 miles of it to receive credit.If it's started happening recently ask yourself what changes you have made to FS as that could be part of the problem.If the problem persists make a log and send it to JD. Instructions for this are pinned on the forum.

Not sure if you are using time compression or not, but it has been known to cause waypoint skipping too.

Waypoints in your near departure area have a radius of only two miles to get credit. If it is a waypoint extremely close to your take-off point during your initial climb it is sometimes best to leave it out of your flight plan.There is an option in RC to enable a 'Checkpoint Ding' that will chime each time you get a waypoint crossing credit. If you don't hear it as you cross near a waypoint in your GPS map or navigation display you'll soon get the RC warning.If you are not using the FS flight planner but are using the FS built in GPS then it might be possible for the waypoint data not to be synced in certain flight phases.Navaid navigation coupled to an autopilot can cause an aircraft using turn anticipation in its guidance system can sometimes cut a corner outside of the two or five mile radius allowed (enroute is five miles) allowed if the change of direction is big enough. Airspeed is a factor as well. RC gets your flight waypoint coordinates from the plan you load into it. Check your GPS track bearing indicator to see if it agrees with the track bearing to next waypoint in the RC status area to see if it agrees.If RC tells you to resume your own navigation remember that is from your present position to the indicated next waypoint. Do not return to the original path but on the nav instrument (GPS or FMC) do a direct to that next waypoint from your present position. By default your heading to your next waypoint must be within 15 degrees. In your options that can be set wider. You'll get an off course warning from RC if that is not met.If you are using an FMC or GPS with a database of terminal procedure waypoints those waypoints must match the plan you sent to RC (and the same matching information in your flight planner). If you use a third party planner similar to FSBuild then I can post a hint sheet hereon database matching and how to use it with an FMC. Just reply to this post.

Waypoints in your near departure area have a radius of only two miles to get credit. If it is a waypoint extremely close to your take-off point during your initial climb it is sometimes best to leave it out of your flight plan.There is an option in RC to enable a 'Checkpoint Ding' that will chime each time you get a waypoint crossing credit. If you don't hear it as you cross near a waypoint in your GPS map or navigation display you'll soon get the RC warning.If you are not using the FS flight planner but are using the FS built in GPS then it might be possible for the waypoint data not to be synced in certain flight phases.Navaid navigation coupled to an autopilot can cause an aircraft using turn anticipation in its guidance system can sometimes cut a corner outside of the two or five mile radius allowed (enroute is five miles) allowed if the change of direction is big enough. Airspeed is a factor as well. RC gets your flight waypoint coordinates from the plan you load into it. Check your GPS track bearing indicator to see if it agrees with the track bearing to next waypoint in the RC status area to see if it agrees.If RC tells you to resume your own navigation remember that is from your present position to the indicated next waypoint. Do not return to the original path but on the nav instrument (GPS or FMC) do a direct to that next waypoint from your present position. By default your heading to your next waypoint must be within 15 degrees. In your options that can be set wider. You'll get an off course warning from RC if that is not met.If you are using an FMC or GPS with a database of terminal procedure waypoints those waypoints must match the plan you sent to RC (and the same matching information in your flight planner). If you use a third party planner similar to FSBuild then I can post a hint sheet hereon database matching and how to use it with an FMC. Just reply to this post.

Ronzie, I understand what you are saying and think that it was a missed waypoint at the very beginning of my flight. There is a NEW waypoint right at the airport. I am probably missing this one because I do a turn toward the next waypoint on takeoff. I am currently using the FSX planner. What I am not sure about is whether I should do a direct to the next waypoint in the GPS rather than doing the direct to waypoint just in RC. What happened when I did it in the GPS is that I wiped out the entire original flight plan. Any clarification on this?

Post your GPS type used and maybe someone can help you. It is odd that your entire plan was deleted. I use FS9 and do not use the FS GPS. I use the PMDG Boeing FMCs and Apollo 50 (from Reality XP) in most cases. I also have this suite but have not installed any of them yet:http://isgsim.com/?page=features