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4th Apr 2003, 14:06

#2 (permalink)

brakedwell

Join Date: Feb 2001

Location: Under the clouds now

Age: 86

Posts: 2,506

Likes: 2

Received 16 Likes on 12 Posts

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.