In the tab "Climb" introduce the aircraft climb table. The first three columns are altitude,
vertical speed in feet per minute or the unit selected, and the indicated speed.
The fourth column varies depending on the aircraft. In the POH tables, the consumption can
be given as instantaneous in gallons per hour (or litres per hour). In other airplanes is given as
accumulated consumption in gallons (or litres) from zero altitude to the altitude for each line. If
the manual of our aircraft uses this second option, then you have to check the checkbox at the
end of the table to "Use accumulated consumption". The title of the column changes from "FF
gph" to "Fuel" in gallons.