Experimental, or amateur-built, or homebuilt aircraft have become, in many cases, extraordinarily sophisticated machines; some rival or exceed the comfort, speed, range, and performance specifications of many factory-built airplanes. One big reason that amateur built planes have become so popular the fellow at the Experimental Aircraft Association told me 35, homebuilts are registered and presumably flying today is because one can get a terrific plane for a fraction of the cost of a new one. After all, the labor is free?
Homebuilt aircraftalso known as amateur-built aircraft or kit planesare constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits. With some limitations, the builder s of the aircraft must have done it for their own education and recreation  rather than for profit.
This handbook is intended to provide guidance on the process required to obtain a special certificate of airworthiness for aircraft in the amateur-built category in Canada. In a nut shell, it documents the documentation process. This is probably the least fun part of building a plane and the most difficult to follow.
Installations are not restricted to approved aircraft engines. Type-approved engines shall be operated within all established certification limits. For non-type-approved engines, limits must be established by the applicant. Amateur-built aircraft are not required to comply with the noise standards of Chapter of this Manual; however, designers and builders are encouraged to follow the guidelines of AMA
Amateur-built aircraft can be built from scratch, based on original or established designs, or from a kit. If a kit is used, the builder must have completed the majority of the build for it to be considered an amateur-built aircraft. If they meet certain performance, weight and design limitations, they can be registered with a self-administering organisation.
Some kits have been evaluated by the FAA; some have not. These evaluations are not required by the regulations, nor is a manufacturer required to have a kit evaluated by the FAA before selling it. Kit evaluations determine whether aircraft fabricated and assembled by an amateur builder from an evaluated kit may meet the major portion requirement of FAR