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Total 31 documents matching your query.

1. [TowerTalk] Heavy Duty Rotor (score: 1): Author: "Bill Gaines AD8P" <ad8p@wcoil.com>; Date: Tue, 6 Sep 2011 15:09:39 -0400; Our local club is looking for a very heavy duty rotor that will fit inside Rohn 45. It needs to turn a very large 3 el 40 and 6 el 20 on the same boom. What is out there in cyber space? Bill AD8P ___; /archives//html/Towertalk/2011-09/msg00045.html (7,230 bytes)
2. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: "Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com>; Date: Tue, 6 Sep 2011 16:18:41 -0300; Prop Pitch rotors, the heaviest. talk with Kurt K7NV and will give you the best solution http://www.k7nv.com/proppitch/ 73, Jorge CX6VM/CW5W --Mensaje original-- De: towertalk-bounces@contesting.com; /archives//html/Towertalk/2011-09/msg00046.html (8,117 bytes)
3. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: "Gene Fuller" <w2lu@rochester.rr.com>; Date: Tue, 6 Sep 2011 15:48:42 -0400; Hi Bill - PPM's come in small,medium and large. Even the "small" would probably do the job. Kurt / K7NV could give good advice. One of them and a Blue Heron controller would really give you a first c; /archives//html/Towertalk/2011-09/msg00047.html (7,849 bytes)
4. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 06 Sep 2011 13:08:17 -0700; M2 and Alfa-Spid both have rotors in the 3000 in-lb torque area. Not as much as a prop pitch, I suspect, but pretty large all the same. Bringing up an interesting question.. Some day, all those prop; /archives//html/Towertalk/2011-09/msg00048.html (8,798 bytes)
5. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Tue, 6 Sep 2011 13:29:06 -0700; For use INSIDE A TOWER, the prop pitch rotary gears cannot be equaled with conventional technology. There are lots of great maga rotors out there, but they don't fit inside Rohn 45. Rick N6RK _______; /archives//html/Towertalk/2011-09/msg00049.html (8,219 bytes)
6. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>; Date: Tue, 6 Sep 2011 20:46:46 +0000; Hi Bill, The most heavy antenna rotator is "Big Boy PST110"; http://www.arraysolutions.com/Products/prosistel.htm But, it could be too big for you... may be the model PST71 is enough. 73, Maximo - EA; /archives//html/Towertalk/2011-09/msg00050.html (10,319 bytes)
7. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: "Gene Fuller" <w2lu@rochester.rr.com>; Date: Tue, 6 Sep 2011 16:53:40 -0400; Hi Jim - In defense of the PPM's - Have you ever opened one up and seen how they're built ? I would guess that any motor shop could rewind the "coils". The bearings and brushes are obtainable. The ge; /archives//html/Towertalk/2011-09/msg00052.html (10,197 bytes)
8. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: "David Jordan" <Wa3gin@comcast.net>; Date: Tue, 6 Sep 2011 17:08:16 -0400; PPM's are great if you have $4,000 for one... Hi Jim - In defense of the PPM's - Have you ever opened one up and seen how they're built ? I would guess that any motor shop could rewind the "coils". T; /archives//html/Towertalk/2011-09/msg00053.html (9,120 bytes)
9. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 06 Sep 2011 14:43:53 -0700; I would think a standard 56 frame motor and gear box would fit inside Rohn 45.. A 56, 143, or 145 frame is about 6.5" in diameter, and Rohn 45 is something like 14" across the middle I can see a 5-7; /archives//html/Towertalk/2011-09/msg00054.html (8,804 bytes)
10. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 06 Sep 2011 14:51:03 -0700; Oh yeah, I've seen the insides (and Kurt has lots of pretty pictures on his website) they're pretty standard motors and gear boxes and I'm sure you could get it rewound, refurbished, etc. You could p; /archives//html/Towertalk/2011-09/msg00055.html (9,867 bytes)
11. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 06 Sep 2011 14:59:47 -0700; Exactly... seems you could find an off the shelf collection of parts that get you there, perhaps with a bit of bracket fabrication (mind you, where I used to work, the words "all you gotta do is fabr; /archives//html/Towertalk/2011-09/msg00056.html (8,935 bytes)
12. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Tue, 06 Sep 2011 15:57:01 -0700; The well pump paradigm (drop it down the shaft) doesn't apply well to towers; you usually don't have the option to drop it down from the top. You have to be able to get it in sideways through the bra; /archives//html/Towertalk/2011-09/msg00057.html (9,521 bytes)
13. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Hector Garcia XE2K <j_hector_garcia@sbcglobal.net>; Date: Tue, 6 Sep 2011 16:16:20 -0700 (PDT); what is your club budget ? J.Hector Garcia XE2K / AD6D Mexicali B.C DM22fp P.O.Box 73 El Centro CA 92244-0073 http://xe2k.net Our local club is looking for a very heavy duty rotor that will fit insid; /archives//html/Towertalk/2011-09/msg00058.html (8,904 bytes)
14. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: <john@kk9a.com>; Date: Tue, 06 Sep 2011 17:04:32 -0800; I use a medium prop pitch motor to turn my 20m and 40m beams, however I often wonder if it is any better than the small. The medium has a 7063:1 gear ratio and the small has a 9576:1 ratio. Which has; /archives//html/Towertalk/2011-09/msg00059.html (9,090 bytes)
15. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: <john@kk9a.com>; Date: Tue, 06 Sep 2011 17:04:40 -0800; I have an old Telrex rotator in storage that uses a 1/3 hp motor connected to a gearbox with a chain. It doesn't look like it would be difficult or expensive to duplicate with standard parts from Gra; /archives//html/Towertalk/2011-09/msg00060.html (9,582 bytes)
16. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: K8RI on TT <k8ri-on-towertalk@tm.net>; Date: Tue, 06 Sep 2011 21:23:59 -0400; I think you will find it's possible to put an alpha Spid or the Prosistel PST61 inside the 45G. I have a PST61 inside mine. You can see the motor sticking out to the left near the bottom of the photo; /archives//html/Towertalk/2011-09/msg00062.html (10,033 bytes)
17. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: K8RI on TT <k8ri-on-towertalk@tm.net>; Date: Tue, 06 Sep 2011 21:39:38 -0400; They already have! <:-)) Consider what they were designed to do do, when, and their normal operating environment. We used to be able to pick the things up for next to nothing as many surplus shops ha; /archives//html/Towertalk/2011-09/msg00063.html (9,448 bytes)
18. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: K8RI on TT <k8ri-on-towertalk@tm.net>; Date: Tue, 06 Sep 2011 23:07:02 -0400; I have seen the gearbox, or at least the ones for the older ProSistel rotators of various sizes available direct from manufacturers. Stateside there should be dual worm gearboxes available in the pro; /archives//html/Towertalk/2011-09/msg00066.html (11,968 bytes)
19. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Wed, 7 Sep 2011 07:27:42 +0100; You Know You're A Ham, If: You see an old Superfortress in full flying condition and you think, "Hmmm... four prop pitch motors." Roger, stop doing that - it hurts! -- 73 from Ian GM3SEK http://www.i; /archives//html/Towertalk/2011-09/msg00067.html (10,102 bytes)
20. Re: [TowerTalk] Heavy Duty Rotor (score: 1): Author: GALE STEWARD <k3nd@yahoo.com>; Date: Wed, 7 Sep 2011 04:44:31 -0700 (PDT); A bunch of years ago a VE3 wrote up an article for CQ Magazine describing the construction of an antenna rotator using 1/3 HP reversable motor and a right-angle worm gear drive gearbox made by Boston; /archives//html/Towertalk/2011-09/msg00068.html (11,240 bytes)

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