Evening all-

 

I am back to flying the ERJ but I have started getting some very strange output from the FMC regarding fuel calculations and distance/time calculations. I don't see an unofficial thread here so hopefully this can get some input from similar class sub-forum.

 

Windows 7 64b

FSX+SP2

 

Take for example a 680nm trip from KPHL to TXKF. This trip will burn around 5000lbs and the FMC is estimating 32.00 (32,000 lbs). I have checked and re-checked the cruise altitudes, speed, winds etc. No matter what I do to get this destination to ballpark the fuel burn has come up empty. I am cruising between FL350 ~ FL370 depending the winds aloft.

 

Another example, KSGF to KDFW. The trip is 350nm +/- and the estimated time of travel is 00+04. (In what, the DeLorean?!) Yet, reset the FPL to KSGF ~ KDEN and the FMC estimates 01+20 or so. Much better.

 

What could be causing such anomalies? I have tried for several days now trying to get the FMC to behave but something is sending me way off. I have tried the following:

 

1) Load default cold & dark flight...then changed planes, then changed locations

2) Full uninstalled, reinstalled the ERJ v2 package

 

I am really at a loss of what might be going on here. Seems like there is bad data somewhere in the cache but I would have suspected loading the default flight would have cleared that up.

 

Does anyone else have any suggestions I could try?

 

Thanks

 

Benjamin

Hello all,

I know -  crazy old post to reply to but came looking for a solution to this question.  I also get bad fuel numbers.  For example, progress page showing same fuel at next waypoint and destination.  Sometimes progress shows fuel over waypoint more than plane currently has. 

Thanks,

James