Back in the GODs when Moby Dick was a sardine, we used to have a truly delightful night ex LHR on the B747 Classic. We did LHR-AMS-VIE-BAH departing around 1900 ex LHR every Thursday. Doesn't sound too bad but try 2 Cat II approaches and a bit of circadian disrhythmia in winter and 2 short sectors. Now it's tough, very tough. Luckily we were young and silly. Also the Swechat brewery supplied excellent bevvies through our ops people in VIE, life had its compensations. Seniority worked as it should, the most junior FEO, me, did lots of them.