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
To the Aid of Falx and collected with the other modules from the R-series in I12 "Egg of the Phoenix". To the Aid of Falx To the Aid of Falx is an adventure module published in 1982 for the "Advanced Dungeons & Dragons" fantasy role-playing game. In "To the Aid of Falx", the player characters aid a silver dragon by trying to retrieve five "potions of silver dragon control" from a thieves' lair. R-1 "To the Aid of Falx" was written by Frank Mentzer, with art by Jim Holloway, and published by TSR/RPGA in 1982 as a 16-page booklet with an outer folder. The module