helicopters

Brief text and photographs explain how helicopters have advantages when moving people, packages, and supplies from one place to another.

Contains photographs and text that look at the history and future of helicopters and provide information about how they work.

Simple text and photographs introduce helicopters, describing their parts and different uses. Includes a glossary, resources, and an index.

Provides information about rescue helicopters, examining the different parts of a rescue helicopter, discussing how they work, and looking at how they have changed over the years. Includes hands-on activity: Make a whirly bird.

Describes early models, major parts, and the workings of transport helicopters.

Examines the functions and characteristics of different kinds of helicopters, including military and police helicopters.

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design. Includes instructions for making aircraft models.