The noise problem can be reduced but only with the help of the CAA what is needed is a positive action program from the CAA and the makers of the silencers to aprove a modification for the common trainning types .
This should be done without the usual sky high CAA fees the payback for the CAA would be an industry to administer in the future.......inmates of the gatwick cristal palace should remember that it is the industry that pays for the good pension they will get so please CAA a little positive action on this one and all will benifit.