Originally Posted by
fjetter
The answer lies in what you need X-C time for. As per definition both are loggable as x-c. Depending on you scenario I would log it like this.
Pre-Commercial License
I wouldn't log B-C as X-C because in order for X-C to count towards a rating you must travel to an airport >50nm. Logging everything as X-C might make it hard to figure out when you meet all the training requirements by you, your instructor, and more importantly the examiner come check-ride time.
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But if I left from A and only stopped at B for fuel enroute to C I think it would be CC because it was more than 50 miles from A which was the initial departure point.
Now if it was an extended stop at B then I see it becoming an issue.