Thanks Skyjob ... we want to put real pressure on things turning around ! We are carrying the Banner for a "Groundworthiness Certificate" to spell out a normative for ground operations. There's two levels : Block Time and Gate Time (or Slot Time), the last one from "Fasten Seat-Belts" sign off flight N-1 till push-back flight N, but the total ground time is really from touch-down till lift-off. But possibly you Flight Deck people count the apron taxi-time (and airport control Tower/ATC-induced queuing, plus LDR and TOR as well) into what you refer to as the "flight time" ? Would this viewpoint change with speed Towing (whether electric or Diesel-powered ...) ?