Hi,

I´m just doing a flight from LAX to ICN. Simbrief calculated a block fuel of 194T for a ETOW from 539T. The fuel burn seems more or less accurate / according to simbriefs calculation, so far at all waypoints the FOB was right where it should be.

However, on the FUEL&LOAD Page, the aircraft calculates a Trip Fuel of 484 Tonns, which is almost twice as much as the A380 can hold in total. This gives me the DEST EFOB Ecam message.

Since Korean Air does fly this route with the A380 and simbrief did calculate a managable flight plan, I wonder why the FMS has the Trip Fuel skyrocketing?

Thanks.

One addition: in contrast to the EFOB and trip fuel calculation, the fuel burn actually is way less then what expected from simbrief, at least in 4x time acceleration (in the EFB). Roughly half way through the flight I burned already short of 15T less then I should, with a constant headwind too.

Hi,

Thanks for your report. It seems like something is broken on the drag model of MSFS in SU6 & SU7.

Willl post a link to the forum thread, which has been acknowledged by Asobo: https://devsupport.flightsimulator.com/t/su7-engine-performance-or-drag-is-wrong/18609/4

Hi Kyle,

thanks for the quick reply. Please correct me if I´m wrong: But this drag issue would also (at least partially) be an explanation for the to low fuel burn (my second post in this thread). If the plane has way to less drag at altitude, it needs less power to get to the desired speed hence less fuel consumption.

Best
Alex