With respect to the certification, privileges, and limitations of airmen, what do category, class, and type mean?
Category: Airplane, Rotorcraft, Glider, Lighter-Than-Air etc.
Class: Single Engine Land/Sea, Multi Engine Land/Sea
Type: specific to aircraft – only required for aircraft with a max gross weight equal or greater than 12,500lbs, turbojet, or any aircraft specified by the FAA to require one