CHAPTER 1 To the Rescue 5 CHAPTER 2 Helicopter History 9 CHAPTER 3 Spinning Blades 15 HOW IT WORKS Tilting and Turning 20 CHAPTER 4 Modern Choppers 23 Focus on Helicopters 28 Glossary 30 To Learn More 31 Index 32 TABLE OF CONTENTS
TO THE RESCUE Sirens blare A car has spun off the road The car has crashed into a fence The driver is hurt She needs to go to a hospital There are no towns nearby But help is on the way A medical helicopter lands near an accident 5 CHAPTER 1
