Ok unless I'm mistaken (which I'm not) TBC is opposite the TBJ/TBK complex and is not shown.Add this to fact that only the first parking space past the road crossing is only shown.So at least 75% of the engineering base is not shown so add at least another 15 planes and another 8 or so nearer to Hatton Cross close to uniform stores.I hope this will clear up a few errors of identification that some people who are unfamiliar of the engineering base at LHR seem not to understand.