Hewitt-Sperry Automatic Airplane for eight years, and yet Sperry became intrigued with the concept of applying radio control to them. He realized that for radio control to be effective, automatic stabilization would be essential, so he decided to adapt his naval gyro-stabilizers (which he had developed for destroyers). In 1913, the Navy provided a flying boat to test and evaluate the gyro-based autopilot. Sperry's son Lawrence served as an engineer during the test phase. In 1914, Lawrence Sperry was in Europe and observed the developing techniques of aerial warfare, including the use of aircraft. In 1916, the two Sperrys joined Peter Hewitt, an
Flight of the Nighthawks managing to aid in securing the safety of the emperor's heirs, and Pug, Miranda, Nakor, and Magnus opposing Varen's deadly magic. In the end, Varen's body is destroyed, but his soul manages to escape again through a rift into the world of Kelewan. Flight of the Nighthawks Flight of the Nighthawks is a fantasy novel by American writer Raymond E. Feist. It is the first book in the "Darkwar Saga" and was published in 2005. It was followed by "Into a Dark Realm" which was published in 2006. Leso Varen is still at large and the Conclave of the Shadows