Originally Posted by
TheOddOne
Whatever happened to the idea of moving the 27L/R thresholds in? Moving them west by a kilometer would still leave 3,000 metres of LDA on 27R, surely enough for everyone? It'd make the turnoff much nearer to T5, as well, shortening taxi times for BA.
This'd raise the approach by a couple of hundred feet. Might make a difference to some people's lives.
TheOddOne
The 27L threshold can not be moved because of the buildings around T4/Central area, plus it would move the CAT III holding point miles from the end of the runway. The 27R threshold would move to a position over the tunnel, and this is not structually strong enoght to have aircraft touching down on it, although it can take aircraft over it.
What seemed a good idea is not so simple...