To the back of the control room, and traversing the whole building north-south was another
corridor, which we quickly dubbed the "brown corridor" on account of its appalling utilitarian
colour scheme. Yet another random image from random websites was now anchored firmly
in my mind. Interestingly, for Pyestock, all the heavy duty doors to the west remained locked
and padlocked. Normally we’d have found a key (as they were plentiful and well labelled) but
one of the doors was open. Inside it was strangely dark and a breeze whipped through the open
grilled vent in the floor. To the south, I immediately recognised an air filter, having seen one
very similar at RAF Wyton. This bank of parallel rooms were obviously
where air was sucked into the Air House passing through all these air filters.
Northern view of the air filter corridor.
21|04|07 © Simon Cornwell 2007