Fuel Computer
The AXIS™ Fuel Calculator and/or Fuel Range Rings are NOT intended to be relied upon as the primary fuel indicator(s), and does not relieve the pilot from the responsibility of proper flight planning. AXIS fuel calculations do not use the aircraft fuel quantity indicators and are calculated from the last time the fuel was reset.
The fuel computer functions must not be used as the primary means of determining the quantity of fuel in the tanks. The aircraft fuel quantity gauge(s) or visual inspection of the fuel tanks are the primary means of determining fuel quantity
Fuel flow values may be in error by as much as 15% if the K factor calibration is improperly set.
The pilot must ensure that the initial estimated fuel quantity value is accurate. The fuel computer calculates the remaining fuel based on the initial fuel value entered by the pilot. The estimated fuel remaining is derived by the fuel computer by subtracting the measured fuel flow from the initial fuel entry. Fuel quantity indications shown on the fuel gauges may not provide the accuracy required for determination of estimated fuel remaining values. Fuel Est and Act Used buttons are available to aid the pilot in entering the initial estimated fuel.
A Fuel Computer/Totalizer is provided under the Fuel Tab. The fuel computer function provides computation and display of estimated fuel remaining, endurance, and fuel used. When interfaced with a GPS source, the fuel computer also provides range and efficiency. The fuel computer calculates these values using the engine fuel flow sensor, ground speed, flight plan, and estimated fuel remaining. Estimated fuel remaining is independent of the measured fuel quantity shown on the fuel quantity gauges.
