Discussion
An aircraft climbs at a constant equivalent airspeed of 180 knots. As it climbs, the true airspeed
Answer: B
Correct answer: Increases as density falls
Equivalent airspeed is a measure of dynamic pressure, so holding it constant means holding \( \rho V^2 \) constant. As the aircraft climbs the density falls, so the true airspeed must rise to keep the product the same. This is why a climb schedule flown at constant indicated airspeed accelerates the aircraft in true terms all the way up.
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