Garmin RS-232 GPS Receiver User Manual


 
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1.1 THE SYSTEM PROVIDES
1.1.1 SPECIFIC RANGE
Specific Range (NM/GAL) = Ground Speed (Kt.)/Fuel Flow
per hour. This is an indication of how efficient the cruise is
and the optimum cruise speed can be determined by
selecting the power setting, which yields the highest nautical
miles per gallon.
1.1.2 FUEL TO DESTINATION
Microflo-L™ calculates (under real wind conditions) the
fuel necessary to reach the destination as selected on the
Loran-C or GPS receiver by multiplying the fuel flow by the
estimated time en route to the destination. (If an
intermediate waypoint is selected for navigation purposes,
the displayed fuel to destination represents the fuel needed
to reach the intermediate waypoint unless the distance to the
destination is in the serial message.)
1.1.3 FUEL RESERVE
Microflo-L™ calculates the amount of fuel which will be
available on board when the aircraft reaches the destination
or waypoint indicated on the Loran-C or GPS receiver. This
feature provides the pilot with accurate information so that
the reserve fuel situation can be evaluated and action can be
taken if necessary. (If an intermediate waypoint is selected
for navigation purposes, the displayed fuel reserve
represents the fuel reserve at the intermediate waypoint
unless the distance to the destination is in the serial
message.) Fuel Reserve = Fuel Remaining – Fuel to Reach
Destination.
1.1.4 ENDURANCE
Microflo-L™ calculates the time left to fly in hours and
minutes based on the fuel remaining and the present fuel
flow.