Originally Posted by CanExpat
At typical landing weights 60-65T the average approach speed would be in the order 140kts with flap 40. At 200’ the height sited here the aircraft would be 0.6nm from the runway, on a 3Deg glide path. To land the pilot flying must in 15seconds:
1/ Identify the failed engine and correct with rudder
2/ Increase thrust on the operative engine while maintaining the centreline and glide path
3/ Retract flap to 15 and try to accelerate to Vref +20 (approx V2+20)
4/ Determine the new landing distance required at a performance limited airfield.
1/ Identify the failed engine
NO NEED to identify anything, just the need to recognise a partial loss of the global thrust : say one or two seconds delay, the same delay as that required to decide a go-around.
and correct with rudder
No additional delay, just normal piloting skill (no need for thinking) - the yaw is quite moderate, we are not (yet) at TOGA thrust!
2/ Increase thrust on the operative engine while maintaining the centreline and glide path
- I say : a piece of cake for a properly trained pilot. I mean a pilot who was trained in the basic piloting skills and in the basics of n-1 flying. The key is : positive, but smooth, increase in thrust.
3/ Retract flap to 15 and try to accelerate to Vref +20 (approx V2+20)
- that is pure BS : by the time one reaches the flaps lever, the aircraft is already crossing the airport fence, just about to flare ...
4/ Determine the new landing distance required at a performance limited airfield.
Pure BS again : you should be landing at about the same speed, and starting the flare at about the same target height as usual ... And enjoy the 60% normal margin on total landing distance ...
This SOP and this "G-A" mindset is not considering the most propbable causes of engine failure on final ...
- icing
- fod
- fuel problems ...
The probabilty of a pure mechanical failure while the engines are delivering less than 50% of their normal rated thrust is so faint ...
That kind of SOP is making very poor use of a captain airmanship ... modern trend!
(Pilot)