Dear Fred . . . . . maybe there should be a PPRuNe system that can deal with posters who reveal their ignorance of the relevant facts, and are patently without credible experience, but launch into print anyway. Initially they should be cautioned. Then. . .. how about - "three strikes and you're out " ? . .. . Darce
p.s. you wouldn't be the Fred that crop-dusted with Ag Cats, by any chance?