Summary: Did you know that a helicopter can be big enough to carry a bus? The biggest helicopter is taller than a two-story house. Find out more about these mighty machines in Helicopters, part of the Mega Machines series
Tags from this library:No tags from this library for this title.Log in to add tags.
Did you know that a helicopter can be big enough to carry a bus? The biggest helicopter is taller than a two-story house. Find out more about these mighty machines in Helicopters, part of the Mega Machines series