[Excessive Fuel use]

Gentlemen... I have made some long haul flights, and the  Aerosoft A330 FMGS seems to have the following issues. 

 

When fuel is transfered from the wing tanks to the triom tank, the FMGS considers that this fuel is "lost" and thus the fuel predictions which were comfortable on dispatch, suddenly become low or even negative. Once the trim tank fuel is pumped back to the wing tanks, the EFOB on destination and altn airports start to rise. 

 

The fuel calculation algorythm must be improved. 

 

Actual fuel consumption is more or less realistic, according to some fuel flow tables that I have from the A330 FCOM. Actually I'd say the plane is burning aroun 10% less in crise than what's supposed to, according to the FCOM. 

 

Fuel calclation function in INIT B page is not working. Nor is the Wind Data request. In very long flights, even a minor Wind variation can yield to large EFOB variations. 

 

Always use the primary method (which works from the Piper Cub to the A380) for fuel calculation: Distance divided by Groundspeed multiplied by your fuel flow is the required amount to reach destination. 

 

Happy flights! 

 

Paulo M. Soares

[Repaints, livery requests, repaint support]

On 8/31/2018 at 6:14 PM, ArturV said:

I flew this classic in my good old days.

 

Much appreciated, best regards.

 

Arturo Villalpando.

 

Muy buenos dias, capitán !!!! 

 

I understood that you were a crew member and flew DC8-51s for Aeronaves Del Mexico, right ? Could you please tells us more about it? How does the Aerosoft's DC8 compare to the real one? Systems and flight model wise. We would be glad to hear from you! 

 

Thanks in advance ! 

 

Muchas gracias ! 

 

Paulo M. Soares