Simon Smith’s Murphy Rebel Posted on March 3, 2007 by EAA Chapter 431December 31, 2014 CONGRATULATIONS, SI SMITH! Simon Smith just received the airworthiness certificate on his Murphy Rebel, finishing a 5-year project. The Rebel has a 160 hp Lycoming 0-320, gross weight of 1800 lbs. and empty weight of 972 lbs.