Features and reviews in Today's Pilot, Pilot, Loop Newspaper and Flyer magazine. Reviews in Aeroplane Monthly, Flight International, Airliner World and Aviation News.

Here is a straightforward introduction, clear of technical jargan, to the complexities of the many radio and navigational systems that are commonly used on aircraft. It provides a fundamental overview of the principles and operation of many instruments and aids found aboard all types and sizes of aeroplane.