Estimate ideal fuel endurance from usable fuel and an assumed consumption rate.
Potential Flight Time Calculator
Results
Calculated trip time
0
Trip start fuel load
0
Full fuel load potential
0
(AvGas) load weight
0
(Jet A) load weight
0
Table of Contents
1
What is Potential Flight Time?
2
How to Use This Calculator
- Enter or select Enter the capacity of fuel in gallons, Enter the consumption ratings in gallons per hour, Enter gallons of fuels actually in all tanks.
- Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
- Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
3
Formula Used
Endurance in hours = usable fuel/consumption in gallons per hour
4
Variables Explained
| Input | What it means |
|---|---|
| Enter the capacity of fuel in gallons | Use the measured or stated value for this item, with the unit or category shown beside the field. |
| Enter the consumption ratings in gallons per hour | Use the measured or stated value for this item, with the unit or category shown beside the field. |
| Enter gallons of fuels actually in all tanks | Use the measured or stated value for this item, with the unit or category shown beside the field. |
5
Worked Example
With 40 usable gallons at 10 GPH, ideal endurance is 4 hours before reserves.
6
Why Use This Calculator?
Use the formula and worked example to check the relationship between the input and output before carrying the result into a longer calculation.
7
Common Mistakes
- This arithmetic does not account for required reserves, unusable fuel, climb, weather or changing engine consumption.
8
Frequently Asked Questions
Should I round numbers before calculating?
Keep the original input precision through the calculation and round the final answer to the precision you need. Rounding an intermediate result can change later steps.
Why can a manual calculation differ slightly?
Check the operation, units, signs and rounding first. Equivalent fractions or expressions can look different while representing the same value.
9
Sources & References
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