Fuel Range in MFD

[Martin_1970]

Hello All,

i have a question to the available flight range display in the MFD:

The 2 circles show the normal range  without the 45(?)minutes (dashed line) reserve and the range inclusive the 45minutes (solid circle). (???)

This is normally calculated on the current fuel flow and the available fuel in the tanks.

In the default G1000 i can adjust the fuel in the "system" tab of the MFD. Is there a similar option for the TBM?

 

Problem with the actual calculation:

Fuel available: roundabout 154 gal

Fuel consumption: 58 gal/h

-> Flight time: 2,5h (rounded)

With actual speed of  272kts:

Range should be 476nm / 680nm (with/without reserve)

But the displayed range circles are quite closer.

 

regards,

Martin