When Jessica notices a helicopter overhead, she, David, and Newton set out to build their own. After extensive research and a little help from the Professor, construction begins. Come along with the crew of SS Whirlybird as they cruise the skies overhead. A history of vertical flight, a full-size helicopter blueprint, and a detailed, step-by-step diagram on building a helicopter from household items are included. Please let the Professor know if you would like to read this book.