What are the K-Factor capacities of HAM-IV and Tailtwister rotators? Allen Ross Brier, N5XZ SET BriTech Systems Incorporated NICET Fire Alarm Level IV NICET Sp. Hazards / Sprinkler Systems Level I 1515 Windloch Lane Richmond, Texas 77469-2553 (281) 342-1590 (281) 342-0940 (FAX) (713) 705-4801 (Cell)