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EN ATPL General Navigation Questions in English
Practise General Navigation
Given: TAS = 485 KT OAT = ISA +10°C FL 410. Calculate the Mach Number
In a simplified navigation calculation, an aircraft is at FL200 with OAT 0°C. An altimeter set to the QNH of a sea-level aerodrome indicates 19,300 ft. Use ISA temperature −25°C at FL200 and the 4%-per-10°C rule, assuming the ISA temperature deviation is uniform throughout the layer. What true altitude results, rounded to the nearest 100 ft?
An aircraft is flying at FL180 and the outside air temperature is -30°C. If the CAS is 150 kt, what is the TAS?
A great circle intersects the equator on 030°W with a great circle direction of 035°(T). An aircraft tracking the great circle will reach the maximum Northern/Southern latitude in position
A course of 120°(T) is drawn between 'X' (61°30'N) and 'Y' (58°30'N) on a Lambert Conformal conic chart with a scale of 1: 1 000 000 at 60°N. The chart distance between 'X' and 'Y' is:
Given: VAR 8°W. What is the average track (°M) and distance between WTD NDB (N5211.3 W00705.0) and KER NDB (N5210.9 W00931.5)?
Given: True course from A to B = 090°, TAS = 460 KT, W/V = 360/100 KT, Average variation = 10°E, Deviation = -2°. Calculate the compass heading and GS?
Use a spherical Earth and a North polar stereographic chart with Greenwich-aligned grid north (the direction parallel to true north on the Greenwich meridian). From the geographic North pole, an aircraft travels 480 NM along the 110°E meridian, then maintains a grid track of 154° for 300 NM. Which listed position is the closest approximate result?
An aircraft was over 'Q' at 1320 hours flying direct to 'R'. Given: Distance 'Q' to 'R' 3016 NM True airspeed 480 kt Mean wind component 'out' -90 kt Mean wind component 'back' +75 kt The ETA for reaching the Point of Equal Time (PET) between 'Q' and 'R' is:
For a straight 3.5° ILS glide path and groundspeed 150 kt, what rate of descent is required, rounded to the nearest 10 ft/min?
