Lawrence Sperry Lawrence Sperry Lawrence Burst Sperry (21 December 1892, Chicago, Illinois, United States – December 13, 1923, English Channel) was an aviation pioneer. He was the third son of the gyrocompass co-inventor, Elmer Ambrose Sperry and his wife Zula. Sperry invented the first autopilot, which he demonstrated with startling success in France in 1914. Sperry is also credited with developing the artificial horizon still used on most aircraft in the early 21st century. On 13 December 1923 Sperry took off amid fog in a Verville-Sperry M-1 Messenger from the United Kingdom headed for France but never reached his destination. His body
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