So, we have been having discussions on Electric system setup for aircraft. I thought it might be nice to cover the basics of e-power in a thread dedicated to the technology. It's not as simple as it seems, and actually confusing at first. There are many factors to consider in the selection of hardware to power an aircraft. All the components have thier own ratings, capacities and performance factors. To properly set up a system the items that make up a "system" need to be selected properly to deliver the most bang for the buck, and provide the least weight for the desired power requirements. The key ingredients in the mix are: a. Motor: Wattage/Amperage Capacity, kV (rpm/volt), b. Battery: Voltage, Amperage Capacity, C Ratings c. ESC: Continuous Amp Rating, Burst Rating, BEC capacity d. Propeller: Diameter and Pitch e. Power needs of the Control System These items all can influence each other. So let's discuss the details of these items and thier attributes that we must consider.