"pilot reaction time"
not heard that one, if so it is only seconds, I would say if that is the case then it also takes into account engine spool up time.
Yes, that's why I said that the term was misleading.
Having said that, it's in fairly common use. Here are a couple of examples:
http://www.gva.ch/Portaldata/1/Resou...es/ACE-GVA.pdf
http://www.airservicesaustralia.com/...n1-1334810.pdf