What is higher VMCG or VMCA on B747-400? Why?

[cheekymonkey75]

Hi Guys

Sorry if this subject has already been broached but I searched and could not find it! I am busy studying for a tech interview and have been advised this question may pop up? Does anyone have any thoughts or references I could look up?

Thanks in advance,

CM75

[Founder]

Originally Posted by cheekymonkey75

Hi Guys
Sorry if this subject has already been broached but I searched and could not find it! I am busy studying for a tech interview and have been advised this question may pop up? Does anyone have any thoughts or references I could look up?
Thanks in advance,
CM75

Isn't VMCA (min control speed air) always higher than VMCG (min control speed ground) on all aircraft?

[Mad (Flt) Scientist]

Originally Posted by Founder

Isn't VMCA (min control speed air) always higher than VMCG (min control speed ground) on all aircraft?

No, as has been discussed here at GREAT length ....

http://www.pprune.org/forums/showthread.php?t=227849
http://www.pprune.org/forums/showthread.php?t=126666
http://www.pprune.org/forums/showthread.php?t=144272

all came up with a simple search on the term VMCG .... and those all specifically refer to this very common - and in my opinion utterly stupid - interview question.

[cheekymonkey75]

Thanks Mad Flt Scientist

have reviewed all posts now and answer is clear.

thanks for your help....

CM75