The best of the best and Worst of the worst

The shaft of the spear is just as important as the point!

 

If we're talking logistics, I'll throw the DRB Class 52 Kriegslokomotive as best wartime loco

About the only area the Germans managed to use mass-production effectively was railway engines

 

Especially when you consider one took on a German raider and it's supply ship sinking the former and damaging the latter.

 

You appear to have spelt Bulleid Q1 incorrectly.

 

And the winner... best in its category from 1935 to 1945 (maybe even later.)

 

The development of those things is fascinating.
Serious efforts made to get the design as developed as possible.
A snippet from Fleischer's Kummersdorf book, which is the merest glimpse of efforts put in.




Handy postwar colanders too...