“......it would be impractical for the FAA to develop design guidelines or standards for the wide variety of design configurations created by designers, kit manufacturers, and amateur builders."

Subject: CERTIFICATION AND OPERATION OF AMATEUR-BUILT AIRCRAFT

THIS AC No.20-27F gives you information and guidance on how to:

(1) Fabricate and assemble an amateur-built aircraft,

(2) Register your aircraft,

(3) Identify and mark your aircraft,

(4) Get your aircraft inspected and certificated,

(5) Flight test your aircraft,

(6) Operate your aircraft,

(7) Receive certification of an amateur-built aircraft purchased outside the US, and

(8) Become a repairman for your amateur-built aircraft.

Subject: CERTIFICATION AND OPERATION OF AMATEUR-BUILT AIRCRAFT

This advisory circular (AC) provides guidance concerning the building, certification, and operation of amateur-built aircraft of all types; explains how much fabrication and assembly the builder must do for the aircraft to be eligible for amateur-built certification; and describes the Federal Aviation Administration (FAA) role in the certification process.

The Federal Aviation Regulations (FAR) provide for the issuance of FAA Form 8130-7, Special Airworthiness Certificate, in the experimental category to permit the operation of amateur-built aircraft.

Federal Aviation Regulations section 21.191(g) defines an amateur-built aircraft as an aircraft, the major portion of which has been fabricated and assembled by person or persons who undertook the construction project solely for their own education or recreation.