Homebuilt aircraft, also known as amateur-built aircraft or kit planes, are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits.[1][2]
^Armstrong, Kenneth: Choosing Your Homebuilt - the one you will finish and fly! Second Edition, pp. 39–52. Butterfield Press, 1993. ISBN0-932579-26-4
^Peter M Bowers: Guide to Homebuilts - Ninth Edition. TAB Books, Blue Ridge Summit PA, 1984. ISBN0-8306-2364-7