Cross Country Flight Planning 3
PA.I.D.K3 Calculating: PA.I.D.K3a Time, climb and descent rates, course, distance, heading, true airspeed, and groundspeed PA.I.D.K3b Estimated time of arrival to include conversion to universal coordinated time (UTC) PA.I.D.K3c Fuel requirements, to include reserve
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1. What is the specific fuel requirement for flight under VFR during daylight hours in an airplane?
Answer (B) is correct. (14 CFR 91.151) The day-VFR requirement is enough fuel to fly to the first point of intended landing and thereafter for 30 minutes at normal cruising speed.
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2. What is the specific fuel requirement for flight under VFR at night in an airplane?
Answer (C) is correct. (14 CFR 91.151) The night VFR requirement is enough fuel to fly to the first point of intended landing and to fly thereafter for 45 minutes at normal cruising speed given forecast conditions.
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3. How far will an aircraft travel in 7.5 minutes with a ground speed of 114 knots?
Answer (A) is correct. (FAA-H-8083-25B Chap 16) To determine the distance traveled in 7.5 minutes at 114 knots, first determine the distance traveled per minute (114 ÷ 60 = 1.9). In 1 minute, the aircraft travels 1.9 NM. Thus, in 7.5 minutes, the plane will have traveled 14.25 NM (1.9 × 7.5 = 14.25). Alternatively, put 114 on the outer scale of your flight computer over the index on the inner scale. Find 7.5 minutes on the inner scale, above which is 14.25 miles.
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