@donpizmeov2
You normally have 24 hours on all trips. That is, check-in on a Monday LGW-LAX, 24 hours stop (effectively like 20 hours in the hotel), flight back normally to Scandinavia and position to LGW on short haul same afternoon. 20 block hours in three working days.
Some trips have two nights' stop, rarely three nights.
@C_Star
RCA is a full captain in long haul. No difference in training or so. However, you are appointed as RCA. You sit in the LHS only above 20,000 ft, otherwise you function as a FO. The one that needs the landing is PF, so the RCA is not only the third guy. When you upgrade to "real" CPT, it's only a quick refresher.