fmc track different to pilot2atc

[mhazy 0]

Hi

I use prosim737

when entering a route into prosims  fmc it displays it on my nd

 

now if i enter the same route into pilot2atc, then check the map when flying it shows me around 5-10 miles of to one side

 

ive tried this with other aircrafts fmc and have the same problem

 

result is atc telling me im off course, at the moment ive altered the allowed heading variance  for the error to stop,  is there any reason for the discrepency

Mhazy

[Dave-Pilot2ATC 864]

I suspect, but don't know, that the data for the lat/lon of the waypoints in the two databases are different or the Mag Variance for each point are different.

 

This should be reduced when we get the ability to import current SIM data into PIlot2ATC.  Your temporary work-around sounds like a good one.

 

Regards,

Dave

[alpha117 73]

Can you let us have the route you were using

 

Thanks

[mhazy 0]

Hi

Heres the route

Although it applies to all my routes

 

Egnx to egll

 

Dty

Cpt

Egll

 

Nothing special standard vor stuff

 

 

Mhazy

[alpha117 73]

Seems OK here. 

 

Although this route does not validate against CFMU.

 

Try this one:

DTY4P DTY BNN1C

 

Just thinking here:  At what zoom level does it show you off course and do you get ATC vectoring you back onto the correct course.

[mhazy 0]

Hi

Will try your route looks like sids I use sometimes use out of egnx rwy 27

 

Zoom is out quite far not sure what though as never looked

 

Yes I get atc vectoring back on course

 

Plan is built up in pilot2atc and copied into prosim737 fmc software

The fact I get vectoring back on course, shows it as being different to my fmc although same info is in both fmc and pilot2atc

Ive increased distance for now in pilot2atc for atc warning so it gets me over problem but would be nice to get same routes in both programs working together

Mhazy

[Dave-Pilot2ATC 864]

This definitely sounds like a difference in the lat/lon of the waypoints in the two databases.  I don't know where prosim737 gets its data, but if it's from the sim, then when we get to the version of Pilot2ATC that lets you import local scenery files then it could resolve the issue.  In the mean time, I think you definitely came up with the best solution.

 

Dave