The first in a series of training manuals for students taking commercial pilot and air transport pilot license, this book covers the subject of radio aids: basic principles, radio and radar, ground aids and airborne. It has been completely revised to take account of the recent Joint Aviation Authorities Europe syllabus for flight crew licensing. Coverage has been expanded on displays and satellite communications and navigation systems, as well as warning systems for terrain, collision avoidance, and altitude monitoring. 312 pages