This unique book serves as both text and practical reference for all personnel involved in avionics and weapons system evaluation and testing, in the air and on the ground. Whether you are training pilots and personnel or actually planning to test systems, this book will provide you with the fundamentals and practical information you need to get the job done. The book is a compilation of experiences and methods from over 25 years in the business and interaction with Test Pilots and Test Engineers over the last 15 years as an Instructor/Director at the National Test Pilot School in Mojave, California. The book was also reviewed by a dozen voluntary experts from the military and industry to ensure all critical components are covered properly. Their comments and suggestions were integrated into the text toward the goal of creating this invaluable textbook and companion to the fighter or heavy aircraft test team, no matter their geographical location. Lessons learned, good and bad, are addressed in each chapter so readers can avoid the pitfalls common to test and evaluation of these systems. Exercises at the end of each chapter provide instructors with the ability to reinforce critical concepts and all the war stories in the book are true.