Bensen’shadnothing-thewheelsarehardmountedtoofaluminumrectangulartubing.Flyingthesegyrosfromhardsurface runwayswasnoproblem.Butwhataboutpeople’sbackyards,grassstrips,etc?Roughsurfacestendtobangtheseaircraftaround quiteabit.AllofthesystemsthatIhadseenthusfarhadroomforimprovement.ThisiswhereIstartedmydesignefforts....