Final answer:
Vno on the Airspeed Indicator (ASI) represents the maximum structural cruising speed, depicted as the transition between the green arc (normal operating speed) and the yellow arc (caution range) on the gauge.
Step-by-step explanation:
In aviation, Vno is depicted on the Airspeed Indicator (ASI) as the upper limit of the green arc and the lower limit of the yellow arc. This speed represents the maximum structural cruising speed of an aircraft, and pilots should not exceed this speed unless the plane is in smooth air and without any abrupt control movements. The green arc represents the normal operating range of the aircraft, while the yellow arc indicates caution and should only be entered under smooth air conditions. In higher performance aircraft, there is also a red radial line known as Vne, which stands for Never Exceed Speed, marking the upper limit of the ASI.