Virren

I want to increase its speed as in the objects velocity, but I found what I needed in the " FlightGlobals.ActiveVessel.AddForce(float Force); "

Hi I am new to the modding scene and looking to make a simple script that increases my speed and changes my acceleration when I press a certain button, the input part is already done but I am having trouble with the documentation and finding how to manipulate speed/acceleration