On Fri, Jan 22, 2010 at 8:58 AM, Sean Breheny wrote: > I think that for safety reasons, take-off is always done at maximum > power. This gives you the best rate of climb and angle of climb on > takeoff which allows you to clear obstacles near the airport in the > event of engine failure. In fact, I think jet engine thrust controls > usually go above 100% rated fan speed (I think 105%) and this extra 5% > is only used for emergencies and for short durations (like takeoff). > > Sean > > I understand that engine thrust for take-off is not set to maximum but is based on take-off weight and other factors. Sometimes they get it wrong: http://www.atsb.gov.au/newsroom/2009/release/2009_21.aspx -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist