Meredith Tcherniavsky and Dana Holladay of Rockville, Md., plan to launch July 4 on a two-month adventure that will take them 8,000 miles in their J-3 Cub. Tcherniavsky and Holladay, who are husband and wife as well as business partners—they operate Holladay Aviation, a flight instruction and aerial photography business—are writing a book about the trip. Fly the Airplane will chronicle the couple's flying adventures together and, they hope, inspire readers to pursue their own dreams.