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Old 26th September 2009 | 22:56
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mundaka
 
Joined: Nov 1998
Posts: 21
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From: UK
Northolt CPT5X SID

Hi,

This SID has quite a large climb gradient required to 3000 feet (13%)
There is a note in the jepessen chart that says something along these lines:
Aircraft unable to comply with the SID contact ATC prior to departure.

My question is this: What do you do if you know with all engines operating you can comply but with an engine out you can't?
Do you need to assume the engine failure case and therefore reduce your weight(This option is the safest one)
If this is impractical and you contact ATC to let them know you are unable to comply, will ATC give you alternate departure instructions while taking off in 07?

I would appreciate an answer from a controler that knows about this particular case.

Thank you,

JAG
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