For those of you who didn't understand, allow me clarify my comments.
In order for this to count as a part of his total time, the time must also appear in some other category(s) in the logbook that explains the nature of that time.
His friend is not an instructor in the aircraft in question, therefore it isn't "training time" or as we used to say "dual received".
He himself is not rated in the aircraft, so he can neither log nor act as PIC, in as much as he
could log PIC once endosed for solo flight by an authorized instructor. This is not the case.
He is on a pro pilot track, and his logbook will be reviewed. Someone will ask about the lack of a rotorcraft airman certificate or the lack of an authorized instructor signing for training for this time. He'll have trouble, "right here in river city", as they said in the Music Man.
As Jim just mentioned, it may be legal for him to have the controls (assuming that is a prerequisite for any kind of logging except SIC, instructor, or FE time) but if thigs go FUBAR, how would this be explained to an authority such as the NTSB or FAA? You know that this situation, although technically legal, would generate all kinds of FAR "triggers" in the aftermath of an accident or incident.
His enjoyable flight does not meet the requirements for logging or acting as PIC, and there is no SIC for this operation.
Where, I therefore ask, is the column that will explain that this flight is justified as a part of Total Time?
He could take a blank column, and call it "time I wish I had". I could fill a book with that time.
