Are you a drone or quadcopter enthusiast?  Trying to build your own kick-ass quadcopter that will soar high and move fast?  Then you need to really understand the thrust characteristics of your motors and make sure it can generate enough thrust to provide sufficient lift and forward movement. 

Michael Mercier has been crazy about hovercrafts since he was a little boy.  Protoytping and building model after model of increasing sophistication from high school through college he refined his knowledge and skills for over a decade.