All the ground play was as tedious as ever - the usual flapping bits of ripped black polythene and old blankets masquerading as blackout etc..
I wonder what all this practise bleeding actually proved?
From what I can recall, there was no difference between an airfield with lots of well lit hangars, street lights, offices etc and an airfield with no lights whatever. They both looked bright green at the hangars with a black pool on the airfield. Anyway, with radar offsets we probably wouldn't look at the airfield anyway.
As for a Kennel, Kitchen or Kelt they wouldn't even look.