[TowerTalk] ROHN 65-G where do we get 200' of it.. + matinggin-pole ?

[Robert Pack]

Not sure how much is left........but just in case it comes down to 20 foot 
sections......let me know if needed and I will see what is still there.
This was a 300 foot tower that we took down.  I think it is 65g.
----- Original Message ----- 
From: "Jim Thomson" <Jim.thom at telus.net>
To: <towertalk at contesting.com>
Sent: Wednesday, February 17, 2010 7:10 AM
Subject: [TowerTalk] ROHN 65-G where do we get 200' of it.. + matinggin-pole 
?


>A buddy of mine needs  190-200' of Rohn  65-G.. and pretty soon.   He would 
>like to  use the 10'  sections , and not the 20's... if
> at all possible.  The plan was to use   3-4 x  KX0G   rings  +  KX0G base 
> rotor.    Also, 3/8"  Polygon  rod  guy wire  to be used.
>
> Top ring was to be at the 165'  level.. and have  25'  of UN-supported 
> tower above it.  [ or guy at 175'.. and have  same 25' un-supported 
> portion above top guys]
>  On that  25'  of Un-supported portion, a 2 el  80m  yagi [ M2]  was to be 
> installed, along   with a m2 4 x el  40m yagi.. and also a 5 x el 20m  m2 
> yagi.
>
> Lower down, the plan was for  a 2nd  4-el 40m yagi... and also  TWO  more 
> 5-el 20m yagi's... and also single yagi's  for 17-15-10-6m.
>
> IE:   10 [ TEN]  yagi's  in all.    Will  65-G  take this kind of load ?? 
> Max wind gust ever recorded in the last 10 x yrs at this location was 57 
> mph [ at the 160' level of another tower]
>
> In looking through old Rohn catalog I have..... the "safe moment of 
> restraint" is :
>
> 45g-  9610  ft lbs     aprx $269.00  per 10' section
> 55g-  17,160  ft lbs  aprx $319.00  per  10' section
> 65g-  33,200 ft lbs   aprx $365.00  per  10' section
>
> Seems to me that's a huge diff, between  45 g and 55g... another huge 
> diff, between 55g and 65g .
>
> The game plan was to opt for  65-G.... if we can find some... new.  The 
> gin pole is what's  giving us the run around.  Any idea's.... or general 
> notes with 65-G owners would be appreciated.  EG; install procedures 
> unique to 65-g .. pitfalls.. 'gotcha's,  etc.
>
> Per Rohn book, 3 x sets  of guys  are required.    But this is a wicked 
> load.   4 x sets of guys can be used, if required .
>
> Later......... Jim   VE7RF
>
>
>
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