C-130 AMP USAF Go-Around Question
 

Hello,

My name is Alex and I've got a very very specific question. With respect to the C-130 AMP System Requirements, that can be accessed through the following link:

http://fas.org/man/dod-101/sys/ac/docs/SRD_5_2.htm

Beneath the "Go-Around Function" section it states the "If Autothrottle is not implemented, the Go-Around function shall calculate and display 1.2 Vstall values to the aircrew".

Question: How was the 1.2Vs value calculated? I'm asking this because I can't connect the dots indirectly to FAR25 to determine why and how this requirement came about.

Any assistance will be much appreciated!

Many thanks in advance!