maximum structural cruising speed

VNO

Normal operating speed, Also called the maximum structural cruising speed. This is the top of the green arc marked on the ASI (air-speed indicator). Beyond this speed is the yellow or cautionary area, which must be avoided while flying in turbulence.
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Time to recall our V-speeds, among them the Design Maneuvering Speed ([V.sub.A]) and the Maximum Structural Cruising Speed ([V.sub.NO]): Too-rapid control movements above these limits just may hurt.
Normal operating speed, or the maximum structural cruising speed. This is displayed as the top of the green arc and is the maximum speed to be used in turbulent conditions.

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