PPRuNe Forums - View Single Post - Thrust on during flare...Q for AIRBUS test pilots...
Old 25th Mar 2014, 13:50
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737Jock
 
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Can you just grasp the simple fact that pitch + power is performance?
Or that Power + Pitch = performance

It doesn't matter which one gets changed first.

Outside factors influence what performance is needed to fly the desired path and speed. You have 2 tools to achieve this pitch and power, and they consistently interact with each other no matter what aircraft you fly or which fancy computer Boeing or Airbus came up with this time.

I never said pitch doesn't change.

But you apparently want to make a big point about the following 3 options which happen to be exactly the same:
1. Pitch down then reduce thrust = less performance
2. Reduce thrust then pitch down = less performance
3. Pitch down and reduce thrust simultaneously = less performance

Except that example 2 in a Boeing the thrust reduction will cause an automatic lowering of the nose (it is trimmed for speed, less thrust causes speed reduction thus nose lowers to increase speed and vertical speed increases (no gusts)). So less pilot input needed.
The only thing that we fix in our aircraft is the speed we fly at. And that dictates our pitch and thrust changes.

Whereas in an Airbus it doesn't matter one bit which sequence you chose.
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