Hands up those of you who have landed on 23L and 23R!
The LHR plates still reveal the old 23R. Not the best of visual approaches as it is (was) alligned with the entrance to the central area tunnel!
I think many of us will remember landing on 23L during the '87 "hurricane". Passing over the Southall Gassometer the Tridents doppler was showing a Ground Speed of 60kts, with the wind on the ground 220/60 G75. I think we stopped in about three hundred metres!
With regard to the South Harrow Gasometer, following the PanAm that landed at Northolt by mistake it had "NO" not "N" painted on it. On our old school (Northolt high as it is now) website one young lady (then) suggested she would have lost her vaginity (on Horsendon Hill) far sooner if it had not been for the "NO" in ten foot letters at South Harrow!