Originally Posted by
Lasiorhinus
Why is that a surprise? That is the whole point of the difference between ATPL and CPL - being pilot-in-command of a multi-crew operation. There is nothing in the rules about 5700kg and ATPL.
Well there was a time when anyone in command of an aircraft over 5700 kgs engaged in Regular Public Transport was required to hold an ATPL. RPT below 5700kgs or REG203 operations, even single pilot, required an SCPL. I think at that time only Conellans operated RPT below 5700kgs. ATPL holders could hold a "First" class instrument rating where an SCPL or CPL holder could only have a "Class" one instrument rating. For an SCPL holder to get an ATPL they had to work for one of the few RPT operators.