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.
When his Zenith CH 701 wouldn't stay put during runup and tended to roll on an incline, builder Chuck Deiterich came up with a do-it-yourself solution.