Speaking with an operators hat on I say again all I am interested in is legal compliance and not whether someone who chose to live near or by an an airport or approach/take off path is happy or not...I dont buy a hushkit to be a friendly neighbour I buy it as I have to...although some airlines may have (or claim to have) an environmental/public conscience
but then that is another immotive/moral issue to some no doubt
Agreed noticeable joe public difference Stage 1 unhushed 707 to Stage 2 hushed 707 was minimal - as no doubt will be the dif between MD80 (S3) and hushkitted Stage 4 (have been asked for a presentation at Mojave but not got round to it yet)
Fair do's double gotcha (but my gotcha was bigger than yours)
