Dave Diehl is a 40-year communications professional. He owns and flies an RV-4 based in Hagerstown, Md., and is currently building an RV-12. He is the author of an upcoming book about Dick VanGrunsven and Van’s Aircraft.
Chuck Berthe flies the turbine-powered Comp Air CA9, an impressive work in progress. With a combination of a massive airframe and a Honeywell turbine, the CA9 is a heavy hauler that will really scoot.