Use the plans number, or assign one yourself (I am building from a 1972 re-print of the original articals, so will base my serial number on the date of completion plus my initials) Mike -----Original Message----- From: stephen langford <smlangford@webtv.net> To: FlyBaby <FlyBaby@listbot.com> Date: Sunday, December 12, 1999 10:25 PM Subject: "N" no's FlyBaby Can someone tell me where I get a serial number for my Fly Baby for the Aircraft Registration Aplication? Might use the plans number? Steve