advance ratio


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Related to advance ratio: propeller efficiency

advance ratio

n
1. (Aeronautics) the ratio of wind speed along the axis of a rotor or propeller to the speed of the blade tip
2. (Aeronautics) the ratio of forward flight speed to the speed of the rotor tip of a helicopter
References in periodicals archive ?
The complete NPAs to gross advance ratio and net NPAs to net Advance ratio stood at 3.
stated, "PANACO is pleased with the Foothill agreement which allows a higher advance ratio for proved undeveloped reserves and believes it will enable PANACO to develop its existing planned projects which are expected to be very accretive to shareholders.
They not only increase the Company's overall borrowing capacity, but also enhance its flexibility through a combination of improved advance ratio and financial covenants.