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Airport Engineering - Engineering

Q1:

The air is blowing at a speed of 75 knots in the direction of the aircraft flying at a ground speed of 775 knots. The air speed of the aircraft, is

A 775 knots

B 75 knots

C 850 knots

D 675 knots

ANS:D - 675 knots

As we know, When the wind is blowing in the direction of the flight, airspeed is less than cruising speed.

Therefore 775-75=700 knots.

So, here 675 knots is the nearest answer to this, Hence 675knots is correct.