76-er,
Some more information below to answer your question about the go around logic for the Airbus. This is from the FCTM, in blue :
The go-around phase is activated when the thrust levers are set to TOGA full fwd position, there is no other switch or button to press The FDs are displayed automatically and SRS Speed Ref Sys and GA TRK modes engage. The missed approach becomes the active F-PLN and the previously flown approach is strung back into the F-PLN.
The SRS mode guides the aircraft with a maximum speed of VLS, VAPP, or IAS
at time of TOGA selection (limited to maximum of VAPP + 25 with all engines
operative or VAPP + 15 with one engine inoperative) until the acceleration
altitude where the target speed increases to green dot. The pitch up can be phenomenal if the go around is initiated at higher speed like VAPP + 40
If TOGA thrust is not required during a go-around for any reason, e.g. an early
go-around ordered by ATC, it is essential that thrust levers are set to TOGA
momentarily to sequence the F-PLN and to trigger the SRS mode.
The recommended procedure is to set the thrust levers to the TOGA position for one second or two to activate the overall logic and to bring them back to the MCT detent or even the CLB detent before the output thrust is too significant.