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Mohit Mittal Grade: 12
        

A top gun pilot , practising radar avoidance , is manually flying horizontally at 1300kmph 35 m above level ground. suddenly the plane encounters teraain that slopes gently upward at 4.3 degree - difficult to detect visually. How much times does the pilot have to make a correction to avoid flying into ground ?

6 years ago

Answers : (1)

Puneet Mittal AskiitiansExpert-IITD
22 Points
										

Hi Mohit,


tan(4.3 degrees) = 0.0751903777


tan(4.3 deg) = P/B = 35/B


thus B = 35/(0.0751903777) = 465.48 m


time = Horizontal distance which plane has before it hits the terrain / Speed of plane


      = B / (1300 )


B = 465.48 m = 0.46548 Km


thus time = 0.46548 / 1300


              = 0.000358 hr


              = 0.000358 * 3600 sec


              = 1.288 seconds


thus the plane has 1.288 seconds to make a correction to avoid flying into ground


Please feel free to ask as many questions as u have.


Puneet

6 years ago
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