Originally Posted by
Navpi
Heathrow’s consultation is considering 3 different runway options, two of them for a 3,200 metres and one at 3,500 metres, slightly differently sited.
All three runway options are on the same line.
The two shorter options are within the footprint of the original 3,500m runway plan - it's only the thresholds that are shifted (obviously) to give the different lengths.