advance ratio


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Related to advance ratio: propeller efficiency

advance ratio

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The ratio between the distance an aircraft moves from one revolution of a propeller(s), under specified conditions, and the propeller's diameter. It is the ratio of the forward speed divided by the product of rotational speed and the diameter. All propeller performances are compared at the same advance ratio. See diameter ratio.
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17, 1903, the Flyer had an estimated forward speed of 31 mph during the steady flight portion of its path and the propellers were turning at 379 rpm, which yields an advance ratio of 0.
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.
On top of providing superior advance ratios and flexibility of structures, leases, typically lasting more than five years, Standard Chartered Bank will also help clients lock in fixed rates over a longer term to mitigate the volatility in short term charter rates.