rohn overload

[Bud]

Bill Cotter wrote:
> 
> Hi Bud,
> 
> I was curious about your "mast" being r25 on a rotating bearing. When I
> e-mailed you last time I was looking for a man-sized rotor :-)  I managed
> to find a few prop pitch motors and had been contemplating how to go about
> using r25 as a mast within r45. Please tell me a bit about your install.
> Did you build the bearing system? Did you guy above the bearing?
> 
> Thanks,
> 
> Bill N4ALG
> 
> >10m example: 6 klm 6 ele beams on r-25 with the top antenna 24 ft above
> >the top guy on 2 sticks of r25 rotating on a bearing...
> 
> _______________________________________________________________________
> |                                                                      |
> | Bill Cotter, Mgr, Research & Development Mail:   bcotter@pop.uky.edu |
> | Communications and Network Systems       Pager:  (606) 259-6082      |
> | Parking Structure-2,  Room-4,  0198      Phone:  (606) 323-6474      |
> | University of Kentucky                   FAX:    (606) 257-9400      |
> | Lexington, KY 40506-0198                 Home:   (606) 887-5563,2402 |
> |______________________________________________________________________|
Hi bill,  Sounds like u es i have some thoughts in common...
Im using a rotating tower section on 3 of my towers... 2 - r-25 ; 1 r-45
In each case I turning about 16 ft of tower and using a HDR-300 rotor.
I designed this method ( even applied for a patent ) about 20 years ago.
This method allows climbing of the mast for repairs and easily changing
antennas if required.

It is certainly not hard to make or cost much... give me ur mailing
address and i will send u a drawing of how i do it... it aint rocket
science!
A few of the "rotating-sections" have been lost over the years but my
original one is still up  supporting a 5 ele klm 20m and a homebrew
4 ele 20m 20 ft above it!! ( survived 2 125mph storms that cost me 
22 different yagis!!)

the other sections support stacked 6/6 on 10m at 24ft spacing and the
third one has some long-boom 15m beams---

I will have to say that climbing to the top some 25 ft above the guys on
a windy day takes some trust.. 73,bud

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