This book is not perfect, never shall become so, I accept any suggestions and constructive criticism.

From the cycle “mind your own business”
Building your ultralight flight machine is easy.
Understanding what you are doing it is not easy thou!
Neither finding the money to do it.!

In this works I do not intend shovel down your thorats bit by bit, formula by formula, how to calculate and build your airplane of choice, only to make you understand in a rather populistic way without any scietific language, the working principles, the mechanical principles, the aerodynamics, basic tools needed and mindset needed to start such project.