Which is correct with respect to rate and radius of turn for an airplane flown in a coordinated turn at a constant altitude

The radius of turn for aircraft flying in a turn is coordinated to the altitude constant and relies on both airspeed and bank angle, in the sense that the turn radius at any other bank angle is precisely proportional to airspeed.

Therefore, the turn of the rate/radius is an airplane flown to turn coordinate to the altitude constant will not vary with respect to a certain degree of bank or airspeed.

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Complete question is;

Which is correct with respect to rate and radius of turn for an airplane flown in a coordinated turn at a constant altitude?

A) For a specific angle of bank and air speed, the rate and radius of turn would not vary.

B) To maintain a steady rate of turn, the angle of bank must be increased as the airspeed is decreased.

C) The faster the true airspeed, the faster the rate and larger the radius of turn regardless of the angle of bank.

Option A - For a specific angle of bank and air speed, the rate and radius of turn would not vary.

Explanation:

For aircrafts flown in a coordinated turn at a constant altitude, the radius of turn depends on both the airspeed and bank angle in the sense that the radius of turn at any bank angle is directly proportional to the square of the airspeed. Which means increase in speed leads to increase in radius of turn. However, if the aircraft remains constant, increasing the bank angle will lead to a decrease in the radius of turn.

Whereas increasing the speed decreases the rate of turn and increasing bank angle also increases the rate of turn.

Looking at the options, the correct one is Option A.

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