Helicopters

Put readers in the pilot's seat of a helicopter! With vibrant graphics, action-packed photographs, and engaging text, this book will get readers excited about the fast, thrilling world of helicopters. Readers will learn how helicopters are used for transport, rescue work, and military efforts. The forces that make a helicopter fly - lift, gravity, thrust, and drag - are also described. A comprehensive diagram displays the main parts of a helicopter. Simple, straightforward text breaks down ...