Solution
Turns out I had rigidBody.AddForce(vector3.up)
what I missed was rigidBody.AddRELATIVEForce(vector3.up)
Gotta get all the parts where they belong!
I’ve gone over Ben’s code, and I don’t think I missed anything, but my rocket only goes up when thrusting, it rotates in place but doesn’t go left or right.
Any ideas?