What does top of descent mean?
Definitions for top of descent
top of de·scent
This dictionary definitions page includes all the possible meanings, example usage and translations of the word top of descent.
Wikipedia
Top of descent
In aviation, the top of descent, also referred to as the TOD or T/D, is the computed transition from the cruise phase of a flight to the descent phase, or the point at which the planned descent to final approach altitude is initiated. The top of descent is usually calculated by an on-board flight management system, and is designed to provide the most economical descent to approach altitude, or to meet some other objective (fastest descent, greatest range, etc.). The top of descent may be calculated manually as long as distance, air speed, and current altitude are known. This can be done by finding the difference between current altitude and desired altitude, dividing the result by the desired rate of descent, and then multiplying that figure by the quotient of the ground speed (not airspeed) and 60. ((C-T)/RoD)*(KGS/60)=TOD. The result dictates how far from the destination descent must begin.
Numerology
Chaldean Numerology
The numerical value of top of descent in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of top of descent in Pythagorean Numerology is: 7
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"top of descent." Definitions.net. STANDS4 LLC, 2024. Web. 29 Apr. 2024. <https://www.definitions.net/definition/top+of+descent>.
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