Of course so long as a stop acts, preventing precession, the roll of the ship proceeds as if the gyrostat wheel were not rotating.
Now close observation will give you a simple rule about the behaviour of a gyrostat.
In the theoretical discussion of the general motion General motion of a gyrostat rolling on a plane.
Here is a gyrostat (Fig. 23) something like the earth in shape, and it is at rest.
The principle of the action is very visible in this gyrostat suspended as the bob of a pendulum (Fig. 57).
It is not precessing, so you know that the weight W just balances the gyrostat F.
But now remove the gyrostat from the frame, and set the wheel in rotation.
Figure 15 shows one form of gyrostat mounted on a horizontal frame, held in the hands of an experimenter.
There is, however, a great difference between the earth and the gyrostat.
The gyrostat is now replaced on its pivots in the frame, with its axis vertical, and moved about as it was before.