when flying a QFE altimeter setting (AGL above TDZE, airport elevation, etc...) how is altitude stated? (ex) We say "FL250" if on QNE, "3000 feet/meters" on QNH, but what is it for QFE? As memory serves me, I thought it was "height 1500 feet/meters." While I am at it, what if you are flying QNE in a metric system. Would it be "FL100 meters?"