Helicoptersby Martha E. H. Rustad
With a whir of rotating blades, helicopters hover effortlessly in the air. Learn how today’s most advanced whirlybirds are used for everything from transportation to search and rescue missions. Discover how pilots fly helicopters all over the world.
Meet the Author
Martha E. H. Rustad is the author of more than one hundred nonfiction children's books, on topics ranging from baby ducks to black holes to ancient Babylon. She lives with her family in Brainerd, Minnesota.
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