Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Raising\s+mast\?\s*$/: 18 ]

Total 18 documents matching your query.

1. [TowerTalk] Raising mast? (score: 1)
Author: BILL.MADDOCK@fluordaniel.com (BILL.MADDOCK@fluordaniel.com)
Date: Fri, 22 May 1998 14:02:32 -0400
I will be trying to raise a 24 ft long mast 2" OD 1/4" wall to the top of my tower Rohn 45. The mast is already inside the tower it will just need to be raised up! I have a Rohn 25/45 ginpole, will t
/archives//html/Towertalk/1998-05/msg00579.html (8,189 bytes)

2. [TowerTalk] Raising mast? (score: 1)
Author: K7LXC@aol.com (K7LXC)
Date: Fri, 22 May 1998 16:57:52 EDT
<< I will be trying to raise a 24 ft long mast 2" OD 1/4" wall to the top of my tower Rohn 45. The mast is already inside the tower it will just need to be raised up! I have a Rohn 25/45 ginpole, wil
/archives//html/Towertalk/1998-05/msg00583.html (9,995 bytes)

3. [TowerTalk] Raising mast? (score: 1)
Author: Fatchett.Mike@tci.com (Fatchett, Mike)
Date: Fri, 22 May 1998 15:20:39 -0600
In addition to Steve's comments I like to put a 2x4 or 4x4 under the mast after clamping it down with the TB. You can also bolt a muffler clamp or two right above the TB just in case. Mike W0MU << I
/archives//html/Towertalk/1998-05/msg00585.html (11,304 bytes)

4. [TowerTalk] Raising mast? (score: 1)
Author: tomwagner@mindspring.com (Tom Wagner)
Date: Sat, 23 May 1998 08:05:40 -0400
through rope a If I remember my physics, the tension in the rope with an ideal pulley is 130 lbs. With real-world friction, it would be higher. Tom - N1MM take -- FAQ on WWW: http://www.contesting.co
/archives//html/Towertalk/1998-05/msg00600.html (9,052 bytes)

5. [TowerTalk] Raising mast? (score: 1)
Author: harpole@pegasus.cc.ucf.edu (Charles H. Harpole)
Date: Sat, 23 May 1998 09:58:07 -0400 (EDT)
The problem I have had with the method given below is that IFif a (and it ususally IS) the upper pulley is some distance horiz. from the center line vert. of the mast, then the further the mast gets
/archives//html/Towertalk/1998-05/msg00603.html (12,200 bytes)

6. [TowerTalk] Raising mast? (score: 1)
Author: tao@skypoint.com (Tod Olson)
Date: Sat, 23 May 1998 09:58:30 -0500
<snip> greater I have installed an eyelet bolt facing downward in the top plate of the tower. I replaced one of the thrust bearing bolts with the eyelet bolt. This places the connection point for the
/archives//html/Towertalk/1998-05/msg00604.html (9,033 bytes)

7. [TowerTalk] Raising mast? (score: 1)
Author: k4sb@mindspring.com (K4SB)
Date: Sat, 23 May 1998 16:45:57 -0700
In following this thread, I have seen very little concern for the fact that a 130 pound mass is depending on ropes and TBs to hold it temporarily. In the first place, once the mast is 1/2 through the
/archives//html/Towertalk/1998-05/msg00606.html (9,937 bytes)

8. [TowerTalk] Raising mast? (score: 1)
Author: stan@capeonramp.com (Stan)
Date: Sat, 23 May 1998 21:35:54 -0400
I erected my 70' of ROHN 45 by myself and it was fun. My mast was 15' of steel with the bottom 10' reinforced, weight was about 55 pounds. On tower assembly, the mast was inserted into the tower when
/archives//html/Towertalk/1998-05/msg00612.html (9,295 bytes)

9. [TowerTalk] Raising mast? (score: 1)
Author: kn6di@groupone.net (Dan Arney)
Date: Sat, 23 May 1998 19:29:55 -0700
I made up a plate and used a boat anchor winch rated at 2500# added a pulley 4" in front of the winch to match where I had drilled a hole in the plate blo the the top plate with the TB. Took the hook
/archives//html/Towertalk/1998-05/msg00614.html (12,510 bytes)

10. [TowerTalk] Raising mast? (score: 1)
Author: dbcolter@mail.tds.net (Dave Colter)
Date: Sun, 24 May 1998 11:03:50 -0400
The concept is good, but beware of lifting heavy loads on hardware store eye bolts. It is safer to use welded or forged eyebolts designed for heavy loads. The actual strength of hardware store bolts
/archives//html/Towertalk/1998-05/msg00621.html (9,697 bytes)

11. [TowerTalk] Raising mast? (score: 1)
Author: K7LXC@aol.com (K7LXC)
Date: Sun, 24 May 1998 11:14:23 EDT
Thanks to all who caught the error in my post. While the force necessary to pull up the 130# mast is more than 130# in order to overcome the friction of the pulleys, it is not 260#. The 260# figure i
/archives//html/Towertalk/1998-05/msg00622.html (10,062 bytes)

12. [TowerTalk] Raising mast? (score: 1)
Author: kg5u@hal-pc.org (Dale L. Martin)
Date: Sun, 24 May 1998 10:33:00 -0500
It's been interesting reading this thread. While I am not anywhere near doing anything like this in the forseeable future, it is very thought provoking..... I'm sure there are some real problems with
/archives//html/Towertalk/1998-05/msg00623.html (8,971 bytes)

13. [TowerTalk] Raising mast? (score: 1)
Author: K7LXC@aol.com (K7LXC)
Date: Sun, 24 May 1998 11:46:28 EDT
Sure, I've used it before. There are several problems though. Due to the ginpole leg clamp fixture, the actual pickpoint is even further away from the path the mast is taking. Now you've got a sidewa
/archives//html/Towertalk/1998-05/msg00625.html (9,225 bytes)

14. [TowerTalk] Raising mast? (score: 1)
Author: w2up@itw.com (Barry Kutner)
Date: Sun, 24 May 1998 18:02:39 +0000
That is exactly what we did with my Rohn 45 and 20 ft mast. To pull up the mast from the bottom we used some BIG washers (that I seem to recall were delivered with the tower and hardware, but I don't
/archives//html/Towertalk/1998-05/msg00627.html (9,044 bytes)

15. [TowerTalk] Raising mast? (score: 1)
Author: K7LXC@aol.com (K7LXC)
Date: Sun, 24 May 1998 19:55:11 EDT
Hmm. I don't know of any commercially available ham-type (and affordable) ginpoles for 25G/45G/55G that has a rooster-head that will reach to the center of the tower. There ain't any. Good idea thoug
/archives//html/Towertalk/1998-05/msg00632.html (9,498 bytes)

16. [TowerTalk] Raising mast? (score: 1)
Author: K7LXC@aol.com (K7LXC)
Date: Sun, 24 May 1998 23:26:29 EDT
Interesting. I owned a commercial tower services company and have worked on hundreds of sites and to the best of my knowledge, no 'for rent' ginpoles are available in my region. Not sure what you mea
/archives//html/Towertalk/1998-05/msg00634.html (10,236 bytes)

17. [TowerTalk] Raising mast? (score: 1)
Author: n8gan@concentric.net (KEN KOCH)
Date: Mon, 25 May 1998 00:05:42 -0400
Steve,I would be very wealthy(paid by the hour)working for people who really want to make a production out of picking a mast like some of these suggestions describe. Problem is, most work ends up as
/archives//html/Towertalk/1998-05/msg00635.html (8,155 bytes)

18. [TowerTalk] Raising mast? (score: 1)
Author: dbcolter@mail.tds.net (Dave Colter)
Date: Mon, 25 May 1998 20:08:33 -0400
Yes, this idea would work but not without some problems. Remember that the 25/45 gin pole isn't designed for very heavy loads, so you need to watch the mast's weight. Also remember that the rope is g
/archives//html/Towertalk/1998-05/msg00643.html (10,126 bytes)


This search system is powered by Namazu