Is it possible to fly this 5 hours for NQ in USA (i would like to make also FAA-PPL soon) and then use this flight time at night to obtain NQ from UK CAA?
Yes, it is.
Unless you are going to a school which specialises in JAR training, make sure that you know exactly what the requirements are (5 hours, including 1 hour navigation, and including 5 solo take-off and
full stop landings), because FAA instructors can't be expected to know JAR requirements. Also, it'll help if you print off the application form from the CAA website and take it with, because your instructor will have to sign it.
Bear in mind that the FAA PPL includes night flying (except in Alaska, where special rules apply), so FAA instructors will not be used to teaching night flying to anyone with any experience - so they may not be quite sure what to do with you. Shouldn't be a problem, especially with an experienced instructor, but something to bear in mind.
You will find night flying in the US an absolutely pleasure, with almost every airport being available to you thanks to pilot-controlled lighting even after everyone has gone home.
FFF
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