Question

Problem 2: Conversion of Units Hafrsfjord An aircraft on final approach to Stavanger Airport arrives over roughly 5.1 kilometres from the end of the runway (directly west from the UiS campus) (D/S a) If the aircraft maintains a true groundspeed of 150 knots, how long n seconds does it take for the aircraft to reach the runway? (One knot equals one nautical milè per hour. One nautical mile equals 1852 metres.) b) If the aircraft has an altitude of 600 feet when it arrives over what angle does its flight-path make with the ground as it flies down to the runway? (One foot equals 0.3048 metres.) Hafsfjord,

is my answer for the first question right? and can you help me with the second one?

Answer 1

a) According to kinematics equation S =ut+ - ar S =Length of the runway u =Velocity of the aircraft Since the aircraft maintain constant velocity, accelaration must be zero. 21 S=5.1x10 m u = 77.16 m/s (150 knots = 77.16m/s) Time is given by 5.1x10 1 77.16 t=66.09 seconds b) Angle made by the aircraft with ground during the landing e_600x0.3048 5100 = 0.0358 = sin(0.0358) O= 2.05°