The material in Chapters 1 to 12 of Part 1 covers the NZCAA syllabus for the Instruments and Navigation Aids examination. It should be noted that Chapter 12 on GNSS also provides, in effect, a pilot training syllabus for the Instrument Rating GPS endorsement. This chapter has again been updated in this edition of the manual. Chapter 13 of Part 1 gives an introductory coverage of Performance Based Navigation. The topics in this chapter are not at present required study for the instrument rating, although it is possible it will become required study in future. In particular, the RNAV (GNSS) is a rapidly developing type of instrument approach that you will need to become familiar with in the near future, if you don't already. Part 2 gives a comprehensive coverage of the topics associated with Flight Navigation IFR (Plotting). The text is based on the assumption that the reader is familiar with the contents of our Waypoints PilotBooks Volume 2, Navigation and Flight Planning . Appendix 1 towards the end of the book takes the reader through a very searching Sample Examination devoted to Instruments and Navigation Aids. Appendix 2 is a similar examination on Flight Navigation IFR. Appendix 3 contains answers to questions posed in Chapter Reviews and Sample Examinations. When you have successfully answered all the questions in the book you will be very well prepared for the ASL (or other State) examinations. The principles and applications of Instruments and Navigation Aids are common throughout the world, for this reason Volume 9 is suitable for global use. However, Flight Navigation IFR is based on New Zealand facilities and charts and may therefore not be completely suitable unless the overseas student has the appropriate documents.