"MrBitsy" wrote in message
news
Terry Harper wrote:

One of the three, at least, will be in use for take-off only. It
ought to be possible for the aircraft on the middle runway approach
to turn towards that other runway and do a circuit in that direction.

However at LHR the proposed third runway is a short one, and so
presumably will be used by smaller aircraft for both landings and
take-off.

Two outside runways have simultaneous take offs - I very much doubt they
will be turning towards one another, therefore the landing on the center
can
go straight on!

We're not talking about a landing, but the need to "go round again" if the
landing has to be aborted. This is unlikely to happen later than when the
captain calls finals, when he will be a couple of miles away from the
threshold, at least. Consequently he can make a turn without conflicting
with the traffic taking off from the other runways.
--
Terry Harper
http://www.terry.harper.btinternet.co.uk/