Monkee,. .. .On a Classic B747 you can achieve a 0.5-1.0% fuel burn decrease by turning one pack off. This is an approved Boeing Procedure.. .. .747FOCAL.. .. .Can you point me towards an official source of this suggestion... .. .The 777 and 767 have areas of the cabin in cruise that are suggested not to seat the old and very young because of several incidents of them passing out. . .. .I could use it to justify First Class staff travel... <img border="0" title="" alt="[Smile]" src="smile.gif" /> . .. .Thanks. .. .Mutt.