Thanks.
I had no idea that the CG position was that far forward on a large jet, and in my understanding?? i had always thought that it was slightly behind the main gear,(only guessing) hence the confusion. I understand clearly the difference in the arm and the resulting difference in the values of both speeds.
Out of interest, what is the most aft CG position on a such a big bird in comparison to an external feature of the aircraft?
Thanks once again,
The Don.