What is the approximate fuel burn in gallons per hour for the second hour and subsequent hours?

• A. 60 gal/hr
• B. 75 gal/hr
• C. 1 gal/min
• D. 400 lbs/hr

Answer: (A)

Fuel burn varies by flight phase, with climb using more fuel than cruise. In the PC-12 NGX, once you’re in cruise for the second hour and beyond, the engine is operating at a steady, efficient setting that yields about 60 gallons per hour. This is the typical cruise fuel flow used for planning because it matches the aircraft’s performance at common weights and altitudes. The figure translates to roughly one gallon per minute, which is convenient for quick mental math, though planning is usually done in gallons per hour. The other options either reflect a different unit (for example, one gallon per minute is the same rate in a different unit) or represent conditions outside normal cruise for this aircraft, making 60 gallons per hour the best, most practical estimate for the second hour and onward.