Space environment: gravity gradient torque, aerodynamic torque, magnetic torque, solar pressure torque. 
The spacecraft system and its sub-systems. 
- Propulsion 
Propulsion system type: cold gas, hot gas. Monopropellant, bipropellant, dual-mode 
- Structures and Mechanisms 
Loads, methods of analysis, monocoque, skin-stringer. 
- Power 
Photovoltaic solar cells, batteries, radioisotope thermal generator (static, dynamic) 
- Attitude and orbit control system (AOCS) 
Passive control technique, Active control technique, sensors and actuators. 
- Thermal 
Environment characterization; single mass isothermal modelization, coarse thermal analysis. 
- Communications 
 Fundamentals, communication links, ground stations. 
Some typical architectures: the simple spinner, dynamics and stability; the dual spinner, dynamics and stability, 
Landon’s rule; the tether system. 
References: Charles D. Brown, “Elements of spacecraft design” AIAA Education Series.