EC you, in LHR 27R your TCH is 58 ft to start with. LDA beyond the glide is equal to the TDZ aiming point which you would normally be for after visual transition. Basically is roughly 1000 ft mark into TDZ. If you wanna disregard 1000 ft of the left behind RWY,well, the choice is yours. What distance will you take if you conduct auto land?
