Thankyou, guys!
The value of 0.1 sec was what I wanted to know! The rest to be known about the system is written in the FCOM.
A simple receipt for stopping a 777:
if the runways is long and dry, use NO AUTOBRAKES AT ALL!
YouŽd be surprised how effective reverse thrust is on this acft, you go on full reverse down to 90 kt when you step lightly/firmly on the brakes, keep rev till 60 kt.
YouŽll save tires and brakes (youŽll see how cold they remain) and fuel spent is worth less than 30 USD...
Otherwise, BRK 2 or 3 do the job.
Just my two cents. (of course there are stupid sops from the geniuses telling otherwise)
I disagree to that, fullforward. It is not just the fuel you're concerned about, but also the maintenance and engine life.
The carbon-brakes of the 777 don't need to stay cool. The best way to use them is by using an autobrake-setting which is not too low or too high, and using idle-reverse or just a little bit more than idle.
But that's a different discussion.