On 1/1/2013 11:37 AM, Mark IV wrote:
How do I certify it?

Assuming you are in the USA, you certify it the same way you certify any
homebuilt airplane.

As always, Google is your friend in any search for knowledge. In this
particular case however, you might want to start with the EAA.

http://members.eaa.org/home/homebuil...ing/index.html

or at least: eaa.org/

Vaughn