I have the following that I want to put on my "new-to-me" 64 foot Rohn 45g tiltover: 2 element Cushcraft 40 meter beam, TH3-Mk 4 tri band beam, 5 element 6 meter beam, and 13 element 2 meter beam. Al
foot According to my current Rohn catalog, it'll take 17.2 square feet of load and a total weight of 135 pounds at 30 PSF wind pressure (86.6 MPH). It looks like you're below the max. How come this i
On Mon, 15 Jan 2001 15:20:55 -0600 "Marty Purselley" <brewer@flash.net> writes: Since your loads are not going to all be at the tower apex, you should use the "Safe Moment about the Hinge" specificat
On Mon, 15 Jan 2001 15:20:55 -0600 "Marty Purselley" <brewer@flash.net> writes: By the way, it would be a very good idea to buy another rotor plate, and put the rotor two feet further down in the tow
and Good point. Now everyone is warned! NONE without violating the LXC Prime Directive. Cheers, Steve K7LXC -- FAQ on WWW: http://www.contesting.com/FAQ/towertalk Submissions: towertalk@contesting.co
When faced with removing our rotator from the 80' tower at our club station, I made up three pieces of angle steel and u-bolts. Each piece was attached to a tower leg and to the mast. This fixed the
I should have been more clear on the mast and base. The mast is steel, 2 inch diameter. I haven't weighed it, but it is very heavy-no doubt it will push me over the limit. Where did you get the alumi
Better safe than sorry. I'll encourage a conservative approach every time. Cheers, Steve K7LXC -- FAQ on WWW: http://www.contesting.com/FAQ/towertalk Submissions: towertalk@contesting.com Administrat
Author: w7ni@teleport.com (Stan or Patricia Griffiths)
Date: Tue, 16 Jan 2001 03:00:24 -0800
I don't think dead weight will be a problem. Rather, the problem will come during the crank-up process when maximum moment is on the hinge. This occurs when the top portion of the tower is in the hor
Stan, Perhaps the difference can be attributed to the weight of that portion of the tower from the hinge to the apex. I did a quickie calculation using 60 lbs per 10' section (I'm not near my Rohn bo
Author: w7ni@teleport.com (Stan or Patricia Griffiths)
Date: Tue, 16 Jan 2001 22:21:33 -0800
Hi Bob, You may have hit on the answer. I sure wish there was someone at Rohn to answer this stuff . . . If I ask, I am sure they will tell me that those calculations were made so long ago that nobod
Marty, We have a two local metals suppliers here in Rochester, NY. They're pretty easy to do business with. You can buy both full length (24 ft) and 1/2 length stock, pretty much whatever you want, a