Tinstaafl
Well-known member
- Joined
- Mar 15, 2003
- Posts
- 188
An example of when amending the alternate is useful:
Flying to an overwater destination where the weather requires an alternate and is forecast to improve however the a/c can't carry sufficient fuel to get to both the destination AND an alternate.
No problem. Use an in-flight replan. File to the 'alternate' (even if it itself requires an alternate nearby) via a waypoint part way to (desired) destination. Prior to the Point of No Return (PNR, sometimes known as a Point of Safe Diversion for the desired destination) assess the weather. IF it no longer requires an alternate then proceed to the desired destination, otherwise proceed to the originally filed-but-unwanted landing point.
Flying to an overwater destination where the weather requires an alternate and is forecast to improve however the a/c can't carry sufficient fuel to get to both the destination AND an alternate.
No problem. Use an in-flight replan. File to the 'alternate' (even if it itself requires an alternate nearby) via a waypoint part way to (desired) destination. Prior to the Point of No Return (PNR, sometimes known as a Point of Safe Diversion for the desired destination) assess the weather. IF it no longer requires an alternate then proceed to the desired destination, otherwise proceed to the originally filed-but-unwanted landing point.
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