The Grand 51 is a full-scale two place proof of concept prototype with approx. 80 hours on the airframe. It currently has a Lycoming T-53 turboprop engine installed but will be equipped with an Allison V12 1710 series piston engine when the airframe tests are completed. This is an artist's rendition of the Grand 51 in racing colors for the National Championship Air Races in Reno, NV.