Thanks for that Dave. I think SHD knows what he's talking about with these numbers. No wonder Boris Island is a no go !! £5bn for LHR isn't loose change either - but do'able. LGW looks, from a public cost point of view, a good option at under a billion. These costs, and NIMBYS, will have huge effect over the politicians decisions...they always need votes more than hubs unfortunately, however shortsighted that maybe.