Quote Originally Posted by Joda View Post
Is your P-51-D a full-size replica, or scaled down? If it's scaled down is it from a kit? If it's a full-size replica then the X is legal. If it's scaled down and built from a kit, only if the original prototype of that kit flew at least 30 years ago can you use the X as a replacement for the "EXPERIMENTAL" marking. If it's a scaled-down replica that you built from plans or from scratch, you need the "EXPERIMENTAL" placard.
Dunno, Joe. AC20-27G defines "Replica" as an "...Aircraft with the same external configuration...of a small aircraft built at least 30 years ago" (Table 5, page 21).

It says configuration, not dimensions. In fact, entering "replica" as a Google search, you get, "...an exact copy or model of something, especially one on a smaller scale...." A similar search for "Configuration" gets, "...an arrangement of elements in a particular form, figure, or combination." Nothing about sizing.

Ron "Do I dare say it's a small point?" Wanttaja