Have more control surfaces.<br />Hydraulics<br /><ul><li>Power boosted
Irreversible</li></ul>Power Boosted: Hydraulic system is in parallel with pilot in control movement. Doesn’t move them FOR him, it assists him.<br />Irreversible: Hydraulics in series with controls. When pilot moves control stick, it moves a valve, which moves the surface. Pilot does not have direct connection into the system. These are more reliable and simpler overall working. However, there is no feedback during movement, so they put in springs or somesuch thing to give artificial feedback.<br />Boeing 727<br /><ul><li>Ailerons and spoilers on wings for roll control.
Inboard and outboard, use varies depending on speed. Generally, in flight, inboard ailerons and spoilers are used for control.