Examples
Examples
Try the starting example
- Measured consumption curve JSON [[speed knots,litres per hour],...]
- [[4,2],[6,4],[8,7]]
- Planned legs JSON [[distance nautical miles,speed knots],...]
- [[20,6],[10,4]]
- User reserve fraction of trip fuel
- 0.3
- Fixed additional reserve (L)
- 5
- Fuel by leg (L)
- [13.3333333333,5]
- Total modeled trip fuel (L)
- 18.333333
- Departure fuel including entered reserve (L)
- 28.833333
Try another scenario
- Measured consumption curve JSON [[speed knots,litres per hour],...]
- [[3,2],[6,4],[8,7]]
- Planned legs JSON [[distance nautical miles,speed knots],...]
- [[20,6],[10,4]]
- User reserve fraction of trip fuel
- 0.3
- Fixed additional reserve (L)
- 5
- Fuel by leg (L)
- [13.3333333333,6.66666666667]
- Total modeled trip fuel (L)
- 20
- Departure fuel including entered reserve (L)
- 31
Calculation method
Calculation method
Fuel by leg (L)
Interpolate measured fuel/hour at leg speed; fuel=distance/speed×burn.
Total modeled trip fuel (L)
Interpolate measured fuel/hour at leg speed; fuel=distance/speed×burn.
Departure fuel including entered reserve (L)
Interpolate measured fuel/hour at leg speed; fuel=distance/speed×burn.
Symbols and units
- a
- Measured consumption curve JSON [[speed knots,litres per hour],...]
- b
- Planned legs JSON [[distance nautical miles,speed knots],...]
- c
- User reserve fraction of trip fuel
- d
- Fixed additional reserve (L)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- No extrapolation, waves/current, engine degradation or regulatory reserve requirement. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. No extrapolation, waves/current, engine degradation or regulatory reserve requirement.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.