How can i make a script for a rocket to rise untill it reaches a certain Height?

I am thinking of using Vector3.New() In order to do this but i do not know how to do this, here is some info. I have a Rocket and i want the core position to rise untill it gets to a height then land

while rocketPart.Position.Y < "MaxHeight" do
	rocketPart.Position += Vector3.new(0, 0.01, 0)
	wait()
end