A pilot is planning a VFR flight with the following fuel:
Trip fuel: 70 USG
Contingency fuel: 5% of trip fuel
Alternate and final reserve fuel: 20 USG
Usable fuel at take-off: 90 USG
During flight, at the half of the trip distance the pilot noticies that the aircraft has consumed 30 USG. If the fuel flow remains constant during the flight, choose the correct statement.
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A
The remaining fuel is insufficient for a landing at destination with alternate and final reserve fuel remaining.
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B
Upon landing 30.0 US gallons will remain in addition to alternate and final reserve fuel.
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C
Upon landing 10.0 US gallons will remain in addition to alternate and final reserve fuel.
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D
Upon landing a total of 10.0 US gallons will remain.
The pilot during fuel planning has accounted for a trip fuel of 70 USG. The actual trip fuel at the half of the distance is 30 USG and assuming a constant fuel consumption the total actual trip fuel of the trip will be 2 x 30 USG = 60 USG.
- Planned trip fuel = 70 USG
- Actual trip fuel = 60 USG
- Difference between planned and actual trip fuel = 70 USG - 60 USG = 10 USG
The aircraft will burn 10 USG less than expected due to dereased fuel consumption. Consequently, the aircraft will not use the contingency fuel. It will land with contingency, alternate and final reserve fuel intact and with an additional fuel of 10 USG.
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Austro Control