I think it is wrong to inflict noise on people late at night.
You will find that although the current residents moved in after KSA was built the houses they live in were there first. Should all those houses just be left vacant? KSA used to be a racecourse and was surrounded by suburbs long before the Wright bros were a glint in the milkmans eye. Saying they moved in there knowing is both disingenuous and selfish.
We are not talking national emergency or vital movement here we are talking late night businessmen and people going to or from holidays. Why should they get dispensation to destroy peoples sleep? Has anyone seen any of the recent research on sleep deprivation and sleep patterns in society? Dont forget we are also talking children here. What damage does interrupted sleep do to young minds and bodies? What are the effects of lack of sleep on pilots? Would you like it if the pilot of the plane you were flying in lived under a flight path with no curfew?
Not to mention stuff the airlines and their pursuit of profits at the expense of everyone else.