[QUOTE=. You would be lucky to get 6 hours at once on them. Certainly officers with four on eight off found it hard to get seven in a row.[/QUOTE]
4 on/8 off although the norm, never meant getting the full 8 off to yourself, you had watch reliefs at meal times, chart correcting, fair logs, library, lifeboats, safety equipment, regardless of rank, and various other things that others may recall. on the 4/4, 5/5 and 6/6 there was no chance of getting a good sleep, of the latter three my favourite was the 5/5 as you got a different part of the day each day