MGL Avionics Stratomaster Ultra “L” Owner’s manual
Page 31
counter shows the actual distance traveled through the air and does not take wind speed or
direction into account. The distance is based on TAS (true airspeed) regardless of the setting
of the air speed indicator.
The trip counter is useful during navigation competitions when GPS may be banned.
VOLT
The supply voltage level to the unit. This would normally be the voltage of your battery. This
indication serves as a battery charge indicator. Should you be using a lead-acid battery
(sealed unit or open, motor cycle battery), your maximum voltage should not exceed 13.8
volts if you have a 12 volt battery or else overcharging and damage to your battery will result.
Many regulators are of poor quality and will overcharge your battery.
A voltage level of under 11 volts indicates a discharged battery. Do not discharge your
battery below this level as you will damage it.
A charged, healthy battery will have voltage levels between 12V and 12.6V when not
charged.
RANGE
Should you have a fuel flow sender installed and calibrated correctly, this field will show you
your current range given your current fuel flow, remaining fuel level and airspeed. This
function is among the most important items for the seasoned cross-country flyer. It allows you
to optimize your aircraft’s range by choosing the best power setting.
The RANGE estimate is dependant on the quality of calibration and installation of your fuel
flow sender, as well as the correctness of reported fuel levels in your tank. The RANGE
estimate applies for still air (no winds) using your current power setting.
Remaining fuel level can be a calculated item if you do not have a fuel level sender installed.
In this case you enter a starting fuel level in the main menu and the unit calculates remaining
fuel level by subtracting fuel used as reported by the fuel flow sender.
We recommend, should this be possible in your aircraft, to fit a fuel level sender.
BINGO
The fuel bingo estimate is related to the RANGE estimate. The fuel bingo estimate is the time
in minutes it will take at your current power setting to reach a fuel level of zero. We do
recommend that you setup your system so the zero fuel level corresponds to your fuel
reserve level. Should you not do this, BINGO will mean “engine out”, usually a condition for
heightened heart beat rate for the Pilot. Land before you reach BINGO time, even if that
means putting down in a less desirable place.
VOLT
The supply voltage level to the unit. This would normally be the voltage of your battery. This
indication serves as a battery charge indicator. Should you be using a lead-acid battery
(sealed unit or open, motor cycle battery), your maximum voltage should not exceed 13.8
volts if you have a 12 volt battery or else overcharging and damage to your battery will result.
Many regulators are of poor quality and will overcharge your battery.
A voltage level of under 11 volts indicates a discharged battery. Do not discharge your
battery below this level as you will damage it.
A charged, healthy battery will have voltage levels between 12V and 12.6V when not
charged.
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