Originally Posted by
RW20
TCAS FAN
With what you have quoted on the possible TODA and LDA with the extension,are they sustainable distances for 320 neo etc,for med operations.
Unfortunately I do not have 320neo take-off performance data but would suggest you look at what is happening at SEN to get a flavour of what could be acheivable from SOU. Similar to SOU they have a restrictive LDA, which during times when the runway state is "wet" could be problematical, as was the case with past Air Europa 738 ops at SOU, with some diverting because of it.
It would appear that SEN recognise the LDA problem, resulting in grooving their runway to assist with drainage. Many rants ago I mentioned the situation at SOU, grooved runway but the grooving isn't doing what it is meant to do due to not having a cambered runway and water collecting in a drainage channel on the east side of the runway. This results in water not fully draining from the grooves and the runway state continuing to be reported "wet/wet/wet" well after the time it should become dry, almost totally negating the whole reason for the grooves.
Consequently the restrictive LDA on 20 (which will not change with the extension) could be a constraint, unless the drainage problem is resolved.