Slocum, Alex. Fundamentals of Design.
Blanco, Ernesto E., et al. "Design Handbook: Engineering Drawing and Sketching." (Courtesy of Ernesto Blanco et al. Used with permission.)
How-To and Specs
HS-805BB+ Specification ( PDF)
4-TH 4-Channel FM Radio Control System Manual ( PDF)
Burns, Scott A. "Modifying a Hitec HS-311 Servo Motor for Continuous Rotation by Radio Control."
"[How to Glue] This to That."