[TowerTalk] Tailtwister in Universal Top Section

[Dennis W0JX]

Gary, it will be an extremely tight fit and I would advise against it. I have had a Universal tower since 1977, first with a 60 footer, then 70 footer, and since 1998, an 80 footer. In all instances, I used a long shaft to reach down to the 18 inch section where the rotor is placed. The 14" top section is held in place with only one bolt per leg and if you put the rotor there, you might have too much twisting action (depending on the size of the beam) and the top section will break. The longer mast absorbs some of the twisting action.
 
Currently, I am turning my TH-11 (12+ sq feet of windload) with a 1977 Tailtwister which has never been opened up. It is a very capable rotor. I have a thrust bearing in the middle of the top 14" section but the rotor is halfway down the second 18 inch tower section.  
 
73, Dennis W0JX/8