Originally Posted by
vilas
Thrust levers just like everything else in Airbus are electrical switches. It just tells the FADEC to select appropriate acceleration schedule. So after the initial stabilization just move them in Flex detent. In a GA THR levers are just slammed to TOGA and FADEC gives the fastest acceleration schedule. It's similar.
I would argue that that is not exactly the complete picture, as the crosswind/tailwind procedure is markedly different for apparently a good reason. Especially when it comes to setting take off thrust.
That said, for a normal take off there is no guidance, so one could just slam them into the the FLX detent if one wishes, i would use a normal measured move though.