Jxbold: What Wellington needs to do is take the $300 million and turn Paraparaumu into a world class international airport, the railway is within about a kilometer of the current airport and could easily be extended to the airport to run a high speed train into the city. That way the runway could be as long as you like and the weather and approach would be safer.
I agree, NZPP, once upon a time, might have made a viable international airport. Not anymore. Have you looked at it recently. A circa 1300 metre runway with no prospect of ever being extended due proximity of houses and with hills close to the south east.
It's never going to be an option.