I'm looking for ideas to this research problem I'm working on . . .
Let's say I have a list of 50 different underwater robots. They are all different. Some have many thrusters, some just one. Some have rudders, some have fish tails, some have side fins. Some are like mantarays, some are like fish, some are torpedo shaped and some are box shaped. And some mix/match those attributes.
I know the mass, velocity, and dimensions of most of them, and have a picture of all of them. I do not know their acceleration rates, drag coefficients, nor their control algorithms. I cannot run any tests on any of them.
Given this information, how could I objectively rank them in order of controllability?
Controllability, meaning how easy can it maneuver and to remain stable despite external environmental influences. I can think of a few ways, but they have have caveats and looking for other ideas . . .