PPRuNe Forums - View Single Post - Rule of thumb to calculate " distance to descent "

14th December 2006 | 15:14

#2 (permalink)

Eff Oh

Joined: Apr 2000

Posts: 520

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From: Middle East / UK

3 x height + 10nm(for decelleration) adjusted for wind.
ie FL330 => 33x3 = 99 + 10 = 109nm from present position to touchdown. It's pretty much a ballpark figure, but it works well.

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