The modern RAM Block 2 has four independently-actuated fins for agility[0], so nowadays the spin stabilization isn't being used to reduce the number of control surfaces.
Spin stabilization is still quite valuable. If an actuator fails (or worse, jams hard over) the missile won't veer off course, it just has reduced control authority.
The modern RAM Block 2 has four independently-actuated fins for agility[0], so nowadays the spin stabilization isn't being used to reduce the number of control surfaces.
Spin stabilization is still quite valuable. If an actuator fails (or worse, jams hard over) the missile won't veer off course, it just has reduced control authority.
[0] https://en.wikipedia.org/wiki/RIM-116_Rolling_Airframe_Missi...