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mr340

What is the 747-400 Max Speed?

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Hi everyone i am on a flight to from KLAS to Honolulu an i want to know the 747 max speed. For example the top speed of this aircraft when flying in high altitude for example FL32 .


Mr Leny

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Hi everyone i am on a flight to from KLAS to Honolulu an i want to know the 747 max speed. For example the top speed of this aircraft when flying in high altitude for example FL32 .

 

At FL350, Mach .92 (614mph, 533 kn, 988kmph). Voluntairly (don't know why an airline would be pushing her that fast) exceed that and I think you'd do a lot of damage that your airline wouldn't like and your CEO could say that the nearest unemployment line is that way (points north).


Kenny Lee
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At FL350, Mach .92 (614mph, 533 kn, 988kmph). Voluntairly (don't know why an airline would be pushing her that fast) exceed that and I think you'd do a lot of damage that your airline wouldn't like and your CEO could say that the nearest unemployment line is that way (points north).

 

 

So which speed would you suggest on a long flight from klas to honolulu 300 knots or so which would you choose on a long flight ?


Mr Leny

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So which speed would you suggest on a long flight from klas to honolulu 300 knots or so which would you choose on a long flight ?

 

It can depend on the cost index, payload, weather, and route. I use 100 when I want to use CI. I haven't been in the 744 for a while so I can't remember what mach that comes out. However, the average cruise speed for the 744 is Mach .85 (567mph, 493kn, 912kmph). I try to keep her below that speed.


Kenny Lee
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It can depend on the cost index, payload, weather, and route. I use 100 when I want to use CI. I haven't been in the 744 for a while so I can't remember what mach that comes out. However, the average cruise speed for the 744 is Mach .85 (567mph, 493kn, 912kmph). I try to keep her below that speed.

 

+1


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