- 1. [TowerTalk] Lower Mast Question Again (score: 1)
- Author: jskatz@sk.sympatico.ca (Sylvan Katz)
- Date: Fri, 20 Apr 2001 09:54:33 -0600
- TTians Thanks for all of the responses and ideas. However, no seems to have addressed question. I concede that the top section of the mast (i.e above the tower and a few feet into the tower) should b
- /archives//html/Towertalk/2001-04/msg00436.html (8,848 bytes)
- 2. [TowerTalk] Lower Mast Question Again (score: 1)
- Author: gclute@home.com (Geo. Clute)
- Date: Fri, 20 Apr 2001 10:29:40 -0700
- Does anyone use seamless stainless steel? I had an 8 foot piece up for about 15 years stacking a 4 element 10 meter beam and a 3 element 6 meter beam without problem. George W7LFD List Sponsor: Champ
- /archives//html/Towertalk/2001-04/msg00437.html (7,992 bytes)
- 3. [TowerTalk] Lower Mast Question Again (score: 1)
- Author: steve@oakcom.com (Steve Maki)
- Date: Fri, 20 Apr 2001 16:23:56 -0400
- Rotational stress will work harden aluminum more than you might guess. Many years ago I noticed my 3el 40 freewheeling. I climbed the tower expecting to bring down the rotator, but when I got up ther
- /archives//html/Towertalk/2001-04/msg00439.html (9,923 bytes)
- 4. [TowerTalk] Lower Mast Question Again (score: 1)
- Author: K7LXC@aol.com (K7LXC@aol.com)
- Date: Sat, 21 Apr 2001 10:41:01 EDT
- That's a fairly insignificant load so the choice of materials probably didn't make any difference - water pipe would've worked. The suitability of the material itself depends on its yield strength -
- /archives//html/Towertalk/2001-04/msg00444.html (7,500 bytes)
- 5. [TowerTalk] Lower Mast Question Again (score: 1)
- Author: K7LXC@aol.com (K7LXC@aol.com)
- Date: Sat, 21 Apr 2001 11:10:39 EDT
- You better believe it. Rotational torque will elongate any hole with a bolt thru it. With an array your size, the aluminum mast will have a short service life. For anyone putting more than one antenn
- /archives//html/Towertalk/2001-04/msg00445.html (7,763 bytes)
- 6. [TowerTalk] Lower Mast Question Again (score: 1)
- Author: w9re@worldnet.att.net (Mike Wetzel)
- Date: Sat, 21 Apr 2001 13:17:16 -0500
- Steve, You are correct about the elongation of holes in aluminum. It will take less time in aluminum than steel but it will still happen in steel with a large load. Now if aluminum to aluminum is pro
- /archives//html/Towertalk/2001-04/msg00446.html (10,181 bytes)
This search system is powered by
Namazu