This book is for those who are new to or attempting to improve their performance of the FAI Model Aircraft Aerobatic Schedules A25 and P25. The book covers the topics of trimming, transmitter setup, aircraft and control setup, how to practice effectively, countering wind effects and what is involved in competition flying. The FAI P25 or Preliminary Schedule is flown in all Continental and World Championships and is usually used in National Competitions. The FAI A25 or Advanced Schedule, is the precursor to the P25 and has the same manoeuvre geometry but with fewer in-manoeuvre elements. The objecting of flying A25 is that it enables an easier transition to P25 as the overall geometry remains the same. In the UK, both A25 and P25 are used in the National League competitions.