Originally Posted by
John21UK
On the Embraer V/S is not used. We use Flight Path Angle instead. But yes, you can use speedbrakes in both modes.
In v/s you are not speed protected so we tend to use Flight Level Change or FPA. In FPA you are also not speed protected. but it maintains a given descent angle irrespective of config/speed/wind etc.
Actually VS
is used on the Embraer.
The trouble with FPA is, as in the scenario above, if you are trying to control ROD and speed but your speed starts to run away from you so will your VS. You're then in a bit of a vicious circle.