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1. [TowerTalk] Mast slipping (score: 1): Author: "Byron Lichtenwalner" <w3wkr@verizon.net>; Date: Fri, 20 Apr 2007 21:27:01 -0400; I am in the process of replacing my current rotor with a 2800. I have a Steppir MonstIR on a 2" mast. In the attached note Steve suggests pinning the 2800 mast clamps for everything EXCEPT the antenn; /archives//html/Towertalk/2007-04/msg00404.html (8,804 bytes)
2. Re: [TowerTalk] Mast slipping (score: 1): Author: "Greg" <ab7r@cablespeed.com>; Date: Fri, 20 Apr 2007 18:51:06 -0700; Thanks for this post. I just installed an Optibeam OB12-6 on an Orion 2800 rotor. A couple days later we had a small wind storm and it did fine. But we do get some nasty ones here on Whidbey Island t; /archives//html/Towertalk/2007-04/msg00405.html (9,604 bytes)
3. Re: [TowerTalk] Mast slipping (score: 1): Author: <donovanf@starpower.net>; Date: Fri, 20 Apr 2007 22:27:14 -0400 (EDT); Byron, Unless you're in an area with no winds, the MonstIR will destroy your 2800 in the first heavy wind. You should use a much larger rotator such as the largest Prosistel, or K7NV's prop pitch. Yo; /archives//html/Towertalk/2007-04/msg00406.html (10,559 bytes)
4. Re: [TowerTalk] Mast slipping (score: 1): Author: "Gary Saboe" <viking@world-net.net>; Date: Fri, 20 Apr 2007 21:28:46 -0500; The Slipp-Nott has been very effective for both slippage problems with the Orion M2 2800 mast clamp, as well as mast-to-boom slippage on the MonstIR. http://www.tennadyne.com/slipp_nott.htm Gary, N&O; /archives//html/Towertalk/2007-04/msg00407.html (9,853 bytes)
5. Re: [TowerTalk] Mast slipping (score: 1): Author: K7LXC@aol.com; Date: Sat, 21 Apr 2007 13:08:49 EDT; 2800 rotor. A couple days later we had a small wind storm and it did fine. But we do get some nasty ones here on Whidbey Island too. I meant to call M2 and ask about pinning and to side tracked today; /archives//html/Towertalk/2007-04/msg00416.html (7,864 bytes)
6. Re: [TowerTalk] Mast slipping (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Sat, 21 Apr 2007 19:36:40 +0200; Why should they do so? They claim a wind area capacity of 35 sq. ft. For the Orion The Optibeam just have 8 sq.ft. Is that just a marketing figure? 73 Peter I think they're going to discourage you fr; /archives//html/Towertalk/2007-04/msg00417.html (7,553 bytes)
7. Re: [TowerTalk] Mast slipping (score: 1): Author: "Greg" <ab7r@cablespeed.com>; Date: Sat, 21 Apr 2007 12:19:06 -0700; The Optibeam OB12-6 has a windload of 16 sqft.k not 8. Why should they do so? They claim a wind area capacity of 35 sq. ft. For the Orion The Optibeam just have 8 sq.ft. Is that just a marketing figu; /archives//html/Towertalk/2007-04/msg00420.html (8,468 bytes)
8. Re: [TowerTalk] Mast slipping (score: 1): Author: "R. Kevin Stover" <rkstover@mchsi.com>; Date: Sat, 21 Apr 2007 15:55:54 -0500; If the guts of the rotator can withstand 35sqft of wind load, then is it unreasonable to ask that the mast clamp be able to also? A 16sqft load is not that big. Big tribander and a shorty 40 on the s; /archives//html/Towertalk/2007-04/msg00421.html (9,517 bytes)
9. Re: [TowerTalk] Mast slipping (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Sat, 21 Apr 2007 23:20:13 +0200; Right, I looked for the wrong one. But still half the allowed windload 73 Peter The Optibeam OB12-6 has a windload of 16 sqft.k not 8. Why should they do so? They claim a wind area capacity of 35 sq.; /archives//html/Towertalk/2007-04/msg00422.html (9,583 bytes)
10. Re: [TowerTalk] Mast slipping (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Sat, 21 Apr 2007 23:29:03 +0200; Right, Before the rotator the beam will fail. There is a damage foto of the Optibeam OB11-5 with almost identical wind load from my neighborhood: http://www.darc.de/distrikte/h/29/grafik/omk_nach_2.j; /archives//html/Towertalk/2007-04/msg00423.html (8,298 bytes)
11. Re: [TowerTalk] Mast slipping (score: 1): Author: "Byron Lichtenwalner" <w3wkr@verizon.net>; Date: Sat, 21 Apr 2007 20:19:38 -0400; Friends During the last 24 hours I have received almost 20 responses providing suggestions on my delima of rotor connection to mast supporting my MonstIR. They included: Going to a larger rotator Goi; /archives//html/Towertalk/2007-04/msg00427.html (8,998 bytes)
12. [TowerTalk] Mast slipping (score: 1): Author: Todd Ruby <rubywine@verizon.net>; Date: Sun, 22 Apr 2007 09:55:09 -0400; I have a 4 el SteppIR and a Cushcraft 40-2CD 13 feet above it on the same 2.5" crome moly mast on 100' ft of Rohn SSV. The rotator is an Orion M 2800. Maybe it is just dumb luck (the only kind I have; /archives//html/Towertalk/2007-04/msg00439.html (8,141 bytes)
13. Re: [TowerTalk] Mast slipping (score: 1): Author: "Al Williams" <alwilliams@olywa.net>; Date: Sat, 21 Apr 2007 19:10:38 -0700; About a year ago I had a conversation with the m2 people about their rotator clamp slipping on my Monstr's mast. What follows is my memory of the conversation: 1. It is better to have the clamp slip; /archives//html/Towertalk/2007-04/msg00441.html (11,333 bytes)
14. Re: [TowerTalk] Mast slipping (score: 1): Author: K7LXC@aol.com; Date: Sun, 22 Apr 2007 13:04:08 EDT; rotator clamp slipping on my Monstr's mast. What follows is my memory of the conversation: the wind banging repeatedly on the gearing can weaken the gears?) mfrs clamp would also void the warranty. f; /archives//html/Towertalk/2007-04/msg00445.html (9,517 bytes)
15. Re: [TowerTalk] Mast slipping (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Sun, 22 Apr 2007 17:21:11 -0500; Ya'll have me wondering about my 40M tower plan. Last fall I took delivery of two M2 40M4LLDD Yagis. This antenna has 4 elements on a 42 foot boom, but a surprisingly sparse 13 square feet windload r; /archives//html/Towertalk/2007-04/msg00457.html (11,909 bytes)
16. Re: [TowerTalk] Mast slipping (score: 1): Author: <donovanf@starpower.net>; Date: Sun, 22 Apr 2007 18:32:04 -0400 (EDT); Keith, I know this isn't a popular message; however... The actual experience of three different PVRCers who tried to turn full size 3 element 40M Yagis and SteppIR MonstIR Yagis with Orion 2800 rotat; /archives//html/Towertalk/2007-04/msg00458.html (13,768 bytes)
17. Re: [TowerTalk] Mast slipping (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Sun, 22 Apr 2007 21:10:44 -0500; Frank, Are you saying the Orion has a basic design flaw that no amount of strengthening or improvement will correct? If so, please elaborate. Thanks. 73, Keith NM5G --Original Message-- From: towerta; /archives//html/Towertalk/2007-04/msg00459.html (14,654 bytes)
18. Re: [TowerTalk] Mast slipping (score: 1): Author: <donovanf@starpower.net>; Date: Sun, 22 Apr 2007 22:58:06 -0400 (EDT); Keith, I don't think the problem is a design flaw with the 2800, I believe it not rated for very large 3 element 40 meter full sized Yagis (including the SteppIR MonstIR) in strong winds. Orion 2800; /archives//html/Towertalk/2007-04/msg00460.html (17,466 bytes)
19. Re: [TowerTalk] Mast slipping (score: 1): Author: K7LXC@aol.com; Date: Mon, 23 Apr 2007 08:05:23 EDT; strengthening or improvement will correct? If so, please elaborate. Did you miss my recent 4-20 Orion post where I spelled out exactly what the design flaws were? Here it is again: surface where the; /archives//html/Towertalk/2007-04/msg00469.html (8,921 bytes)
20. Re: [TowerTalk] Mast slipping (score: 1): Author: "Al Williams" <alwilliams@olywa.net>; Date: Mon, 23 Apr 2007 11:08:40 -0700; Thank you for the link to the photo of your "new" m2 2800 positioner. It looks identical to my older one which is about 3 years old since purchase. The mfr's spec is the same except that the starting; /archives//html/Towertalk/2007-04/msg00476.html (14,921 bytes)

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