"If the end is nigh why then have Infratil spent over £7 Million on improvements and are still spending."
Ianh. I drive through Manston regularly, and I can see no evidence of £7 million being spent on the infrastructure by Infratil. Since you quoted this figure, perhaps you could give a breakdown of exactly what this money has been spent on?
I suspect you are actually referring to the costs of running the airport. With no business to speak of passing through the airport it is easy to see how losses for the year could have reached the figure you quote (i.e. the operating costs). However, this is is not money that has been invested in the infrastructure, but money that has effectively disappeared down the toilet.