Pressure altitude 18,000 ft
Temperature -41 °C
Power 2,500 RPM - 26" MP
Recommended lean mixture usable fuel 318 lb
What is the approximate flight time available under the given conditions? (Allow for VFR night fuel reserve.)
A. 3 hours 12 minutes.
B. 2 hours 27 minutes.
C. 3 hours 42 minutes.
