> 3 to 3.2 degrees is certainly feasible in a couple of heavies I know of, but would be interesting ( as in almost impossible) in any sort of tailwind and in any event would almost certainly require Full Landing Flap....There's also the (almost universal requirement) to be spooled up to approach power not later than 1000' AAL/ 3 and a bit miles out. With full "draggy" landing flap that will result in a relatively high thrust setting in the final stages of flight compared with the current values that are used when landing using a lower flap setting.
The chap in the mythical pub on 10 mile final may be able to enjoy his early morning beer
in piece and quiet, but perhaps the residents of Cranford won't be quite so keen.......It will be interesting to see what the trial reveals.