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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Tram\s+rope\s*$/: 40 ]

Total 40 documents matching your query.

1. [TowerTalk] Tram rope (score: 1)
Author: Peter <pc2a@pi4cc.nl>
Date: Sun, 17 Dec 2006 19:55:11 +0000
Hi, What kind of rope do you guys to make a single tram lin? We tried a tram today for the first time and we got broken the tram line when lowering a beam The line was a 4 mm stainless steel . Peter
/archives//html/Towertalk/2006-12/msg00641.html (6,237 bytes)

2. Re: [TowerTalk] Tram rope (score: 1)
Author: Cqtestk4xs@aol.com
Date: Sun, 17 Dec 2006 15:45:16 EST
I have always used 3/16 or 1/4 inch EHS cable. I had it laying around and knew it would certainly be strong enough to use. I don't like to use rope because it stretches...especially nylon. Bill K4XS/
/archives//html/Towertalk/2006-12/msg00643.html (6,601 bytes)

3. Re: [TowerTalk] Tram rope (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sun, 17 Dec 2006 21:58:03 -0000
I use 1/4" EHS guy wire for my trams. The forces on a tram can be huge if you aren't careful. David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or
/archives//html/Towertalk/2006-12/msg00647.html (8,410 bytes)

4. [TowerTalk] Tram rope (score: 1)
Author: Dennis OConnor <ad4hk2004@yahoo.com>
Date: Mon, 18 Dec 2006 04:27:04 -0800 (PST)
Let me second Dave's comment... Using rope for a tram line, or small diameter cable is asking for a crash... I also use only 1/4" EHS... Because the tram line is pulled into a caternary shape the tot
/archives//html/Towertalk/2006-12/msg00663.html (7,212 bytes)

5. [TowerTalk] Tram Rope (score: 1)
Author: kb9cry@comcast.net (Phil Camera)
Date: Mon, 18 Dec 2006 16:15:33 +0000
The tram system that I used (borrowed) used Phillystran for it's tram wires. Phil KB9CRY _______________________________________________ _______________________________________________ TowerTalk mail
/archives//html/Towertalk/2006-12/msg00665.html (6,858 bytes)

6. Re: [TowerTalk] Tram rope (score: 1)
Author: "Dick Green WC1M" <wc1m@msn.com>
Date: Mon, 18 Dec 2006 13:56:39 -0500
I don't want to be contrarian, but has anyone seen a tram line made of reasonably strong rope break? Has anyone calculated the actual forces on the tram line? For example, the breaking strength of 7/
/archives//html/Towertalk/2006-12/msg00668.html (9,312 bytes)

7. Re: [TowerTalk] Tram rope (score: 1)
Author: Cqtestk4xs@aol.com
Date: Mon, 18 Dec 2006 16:11:46 EST
For example, the breaking strength of 7/16" nylon rope is about 4,500 lbs, with a safe working load between 450 lbs and 900 lbs (some references say no more that 1/5 breaking strength, others say no
/archives//html/Towertalk/2006-12/msg00674.html (8,105 bytes)

8. Re: [TowerTalk] Tram rope (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Mon, 18 Dec 2006 21:21:13 -0000
It depends on the angle of the dangle, so to speak. The the copy of the YCCC Scuttlebutt article at the top of the page at: http://www.k1ttt.net/technote/tram.html for calculating forces. In the exam
/archives//html/Towertalk/2006-12/msg00675.html (11,302 bytes)

9. Re: [TowerTalk] Tram rope (score: 1)
Author: "Frederick M. Mott" <ab8ah@earthlink.net>
Date: Mon, 18 Dec 2006 16:41:57 -0500
I put up a 4 element SteppIR using a two lines spaced 6 feet apart. The lines were 1/2 inch nylon trucker's rope. I used my son-in-law's New Holland Backhoe to snug up the tram lines and my Grandson
/archives//html/Towertalk/2006-12/msg00676.html (8,193 bytes)

10. Re: [TowerTalk] Tram rope (score: 1)
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Mon, 18 Dec 2006 17:41:36 -0500
I've not used Nylon rope for a tram line but "way back when" I did use it for some temporary guys on a small vertical. The stuff is like a rubber band. I do use Poly rope for hauling things up the to
/archives//html/Towertalk/2006-12/msg00679.html (11,439 bytes)

11. Re: [TowerTalk] Tram rope (score: 1)
Author: Steve Maki <steve@oakcom.com>
Date: Mon, 18 Dec 2006 19:29:50 -0500
The advantages of good 1/2" double braid rope for a tram line: 1) Plenty strong - 10,000 lb breaking strength, 2400 lb. working load. 2) Has a *small* amount of stretch available, which acts to lesse
/archives//html/Towertalk/2006-12/msg00684.html (8,216 bytes)

12. Re: [TowerTalk] Tram rope (score: 1)
Author: "BRENT BAUM" <brentbaum5323@msn.com>
Date: Mon, 18 Dec 2006 18:11:31 -0700
Dick, Remember that nylon rope fatigues under stress, that's why climbers replace their ropes after a hard fall. I'm not sure how much stress (dynamic load) the first haul placed on your rope, but yo
/archives//html/Towertalk/2006-12/msg00686.html (11,009 bytes)

13. Re: [TowerTalk] Tram rope (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 18 Dec 2006 20:59:25 -0600
I have successfully used 1/2" poly rope for years as a tram line to haul antennas 85# and under up to the 120 ft level. Doug/VA5DX The advantages of good 1/2" double braid rope for a tram line: 1) Pl
/archives//html/Towertalk/2006-12/msg00688.html (8,258 bytes)

14. [TowerTalk] Tram rope (score: 1)
Author: <john@kk9a.com>
Date: Mon, 18 Dec 2006 17:03:29 -0500
Is there a formula and example of how much force is really on a tram line? John KK9A Let me second Dave's comment... Using rope for a tram line, or small diameter cable is asking for a crash... I als
/archives//html/Towertalk/2006-12/msg00690.html (7,609 bytes)

15. Re: [TowerTalk] Tram rope (score: 1)
Author: Eric Scace K3NA <eric@k3na.org>
Date: Tue, 19 Dec 2006 00:32:14 -0500
Yes, I saw a tram line part and the results were not pretty. The person operating the winch narrowly escaped injury by the antenna and by the parted line. This occurred early in my ham antenna career
/archives//html/Towertalk/2006-12/msg00691.html (9,551 bytes)

16. Re: [TowerTalk] Tram rope (score: 1)
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Tue, 19 Dec 2006 03:23:38 -0500
Wouldn't that be in addition to the line tension without the antenna? Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhalstead.com (Use return addres
/archives//html/Towertalk/2006-12/msg00693.html (10,778 bytes)

17. Re: [TowerTalk] Tram Rope (score: 1)
Author: "Cam and Juli Hedrick" <walnutcreek@appstate.net>
Date: Tue, 19 Dec 2006 07:46:48 -0500
Climbing rope is much different than what you would use for a tram. Climbing ropes are rated by the UIAA for multiple falls. The most I've seen one rated for is 7 falls for 450 lbs. Static rope on th
/archives//html/Towertalk/2006-12/msg00698.html (7,919 bytes)

18. [TowerTalk] Tram Rope (score: 1)
Author: Dennis OConnor <ad4hk2004@yahoo.com>
Date: Tue, 19 Dec 2006 06:47:42 -0800 (PST)
I'll try to reply to all the comments... First, yes, the wood drum the EHS is on is two feet in diameter, and you roll the drum and wire around, you don't carry it <at least I can't>.. Yes, EHS has a
/archives//html/Towertalk/2006-12/msg00699.html (8,705 bytes)

19. Re: [TowerTalk] Tram rope (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Tue, 19 Dec 2006 07:10:40 -0800
I'm having a bit of trouble visualizing the forces here. Is the antenna supported by pulley hanging from the tram line (a'la a gondola lift at a ski area), so you're talking about the forces on the s
/archives//html/Towertalk/2006-12/msg00701.html (9,685 bytes)

20. Re: [TowerTalk] Tram rope (score: 1)
Author: Bill Turner <dezrat@copper.net>
Date: Tue, 19 Dec 2006 10:20:55 -0800
ORIGINAL MESSAGE: -- REPLY FOLLOWS -- May I ask how you terminate the ends? Is EHS flexible enough to wrap around a thimble and use clamps or do you need to have swaged ends? Or something else? Thank
/archives//html/Towertalk/2006-12/msg00709.html (7,979 bytes)


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