The Telrex rotor is model A 214O RISX [with operating/assembly instructions] 9,000 in.lbs rotating torque 380 degrees travel [automatic limit] .5 rpm 2" OD mast 1/4 hp motor approximately 11"x12"x19" net weight 90 lbs. new price in 1979 = $675 + shipping 73 Don N8DE Cqtestk4xs at aol.com wrote: > What type rotor?