Mr. Jim Moss finished his modified replica of the Gee Bee Q.E.D. in 2013. It has a Wright R-1820 Cyclone 1425 HP engine instead of the original Pratt & Whitney R-1690 Hornet 650 HP engine. The wings have a larger span and the vertical fin has about 20% more area than the original a/c. The original Gee Bee R6 was eventually redesignated the Q.E.D., hence Mr. Moss' Q.E.D. II.