RE: If your Dad has already registered the aircraft,then he has already proved to the FAA that he done at least 51% of the work
I believe that there may be some confusion about Registration and Certification as it applies to this issue. I do believe that the regs talk about this issue in terms of Certification not registration. If this plane has never been certified, I don't think you have an issue. The work must be 51% amateur built and includes all amateurs who have worked on the plane. I suggest that you read the regs for yourself before making a decision one way or the other. Also call you local FSDO. See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2005 - KR Gathering