True, how many movements would really need such an extension? I mentioned the fully fuelled 747's as that was what was discussed many years ago when this project first raised it's head.
Just as a point of interest, I remember watching a Spanair MD83 doing her best, screaming her way down rwy 25 on a very hot day last July - V1 must have been called passing the "Foxtrot" turn off - now that is NO margin for error and right on perf limits that particular day.
The rwy extension, well - watch this space I guess!
