Quite a few interesting aircraft mentioned, nice to see the merlin engines are doing well.
Also high or fast flying seems to be popular as well. Highest I've seen was only FL370 on an almost empty DC-8 across the pacific, crew kept asking for FL410 but we were blocked by other traffic. Fastest was across the atlantic with a good tail wind with an average speed 560kts for the whole flight (DC-10-30)