Some excerpts from Stability and Control Study of a Small Rocket Lift Device.  What is particularly clear are the discussions of the center of gravity and the relation to the nozzles.   This is just one of many instances in discussing and detailing and defining the center of gravity in relation to the thrust nozzles of a vectored thrust flight unit.

Stability and Control Study of a Small Rocket Lift DeviceADA063189-1 Stability and Control Study of a Small Rocket Lift DeviceADA063189-76

Stability and Control Study of a Small Rocket Lift DeviceADA063189-43 Stability and Control Study of a Small Rocket Lift DeviceADA063189-42

Jetpack CG evaluation

Jetpack CG evaluation