Originally Posted by
SpringHeeledJack
Thank you, that's a case of seeing an un-identified aircraft and hearing another and making 1+1 = 3 ;-) What ever prop job I heard was not a hero, nor A400, nor flybe, nor russkie but perhaps something else. Sort of sounded like a P-3, but who knows!
Nothing visible on WebTrak (which is pretty good these days for all London TMA traffic), other than the Flybe DH8D that you have already discounted, still in the climb out of SOU for AMS.