Good rule of thumb: Distance x 3 = Altitude e.g. 100NM x 3 = 30000ft
Crosscheck every 10NM and adjust the rate of descent accordingly.
ROD = groundspeed x5. E.g. 400kts = 2000ft/min.
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Good rule of thumb: Distance x 3 = Altitude e.g. 100NM x 3 = 30000ft
Crosscheck every 10NM and adjust the rate of descent accordingly.
ROD = groundspeed x5. E.g. 400kts = 2000ft/min.