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Old 4th April 2003 | 14:06
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brakedwell
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From: Under the clouds now
Basically it is three times the height plus 10 miles for decelleration. If descending from 370 then the formula is 37 X 3 = 111 plus 10 n.m therefore TOD is 121 from destination plus or minus a small wind factor correction which is variable.
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