Mike, If you want to change the data plate, all the information required is just four things - the builder's name, registration number ("N" number), Model and serial number.
Ed J. >What is the usual procedure regarding the original data plate that goes >on an Experimental when it gets signed off? Since mine was originally >attached to the plane, everything on it has changed except the name of >the builder and the name of the plane. It is also quite worn with time >and hard to read. Is there any reason, regulation wise, why I cannot >re-do the data plate to reflect the changes? >Mike