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1. [TowerTalk] raising a crankup with ginpole: calculating forces (score: 1): Author: Kevin Normoyle <knormoyle@comcast.net>; Date: Wed, 08 Jun 2005 18:56:50 -0700; I'm probably going to embarass myself because I can't do a little statics analysis but here goes: (I may be wrong, so caveat emptor. Please correct me if so) I built a raising fixture with pipe, pull; /archives//html/Towertalk/2005-06/msg00238.html (10,079 bytes)
2. [TowerTalk] raising a crankup with ginpole: calculating forces (score: 1): Author: "George & harriette Staudacher" <gnhstaud@snowcrest.net>; Date: Fri, 17 Jun 2005 10:57:30 -0700; I think that using a "backstay" and side cables is dangerous. I use the US Tower raising fixture that is an A frame so that it is stable and the two front legs are in compression. Also the 2500 winch; /archives//html/Towertalk/2005-06/msg00442.html (7,879 bytes)

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