Helicopters
This flying machine has the unique ability to hover in one place in the sky. It can be used for many tasks such as putting out fires or accomplishing rescue missions. Read all about how this amazing machine works.
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| Format: | EBOOK |
| Other Format: | READ-ALONG |
| Language: | ENGLISH |
| Published: |
Bellwether Media
2008
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| Series: | Mighty machines |
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