Performance: "VMCA" and "Vs" or "Vsr"

[wiw3bb3r]

Hello everyone !

I was studying performance through a book called 737 Performance Reference Handbook, by Maurits Hulshof.

The book says that VMCA should be 1.2 Vs (1.13 Vsr) OR GREATER, "according to the FAR 25.149"

If you look at the FAR 25.149, it says that VMC may NOT exceed 1.13 Vsr

So which one should be followed? This is taking my sleep!


Thanks in advance !