What would be the groundspeed if the true airspeed is 135 knots and results in a groundspeed of 140 knots?

Groundspeed refers to the actual speed of an aircraft over the ground, which is influenced by factors such as wind. In this case, the true airspeed is given as 135 knots, which is the speed of the aircraft through the air. However, the presence of wind can either increase or decrease the groundspeed depending on the wind direction and velocity.

If the true airspeed is 135 knots and the result shows a groundspeed of 140 knots, this indicates that there is a tailwind assisting the aircraft, effectively adding to its speed over ground. In this scenario, the groundspeed of 140 knots is the correct answer because it reflects the addition of the tailwind to the true airspeed.

This demonstrates the relationship between true airspeed and groundspeed, illustrating how environmental factors, like wind, play a crucial role in actual performance and navigation of an aircraft.