[WARC] James' tower raising

[James Jarvis]

Tom Peterson wrote:
> Clare-
> 
> Thanks for sharing the pics.  I always enjoy seeing others tower 
> projects.  One of these days I'm going to put mine up and it helps in 
> the planning to see what others have done.

Hi Tom and Group,

Note that this tower and associated rigging is heavier than would 
normally be encountered in amateur radio service. Each 10 foot section 
weighs about 250 pounds. The legs are solid 1 1/4 structural steel. The 
face width is 18". The gin pole Clare posted pictures of does double 
duty raising the 250 pound tower sections and lifting the 1000+ pound 
turbine and blades onto the tower. I think Rohn 25G gin pole and 
associated gear would be less intimidating and expensive!

If the weather cooperates, we will finishing the install tomorrow 
morning. The crane arrives at 7AM. We will take down the existing 50 
feet as a unit. Bolt it to the already assembly next 70 feet. Slide the 
tower over slightly and then bolt the turbine in blades in place. Then 
the crane lifts at the 100 foot level and sets it in place. Guy wires 
are attached to the guy points and tensioned, then someone goes up the 
tower and disconnects the crane. At that point the crane is done and 
further comissioning is mainly done at ground level.

In the near future, I will be installing a safety climb device on the 
tower. This is a permanently installed steel cable that goes up one 
face. A cam/slider is fitted to that cable. It allows unrestricted up 
movement, but locks in place in the event of sudden down movement.


-Jim

> 
> 73
> Tom
> KC9ECI
> 
> Clare Jarvis wrote:
>> All,
>>
>> here is a link to a folder with some pictures.   Unfortunately I was 
>> pulled from the
>> this area to prep the tail.
>>
>>
>> Clare
>>
>>
>> http://goldeneye.jarviscomputer.com/clare/tower/
>>
>>
>>
>>
>>
>>
>> On Thursday 01 October 2009 11:38:50 Tom Peterson wrote:
>>  
>>> I would love to see some pictures of this when it's all done.
>>>
>>> James Jarvis wrote:
>>>    
>>>> Update:
>>>>
>>>> We ran into some technical difficulities while erecting the tower
>>>> yesterday. The guy wires were too short. New guy wires are being
>>>> manufactured as I write this. If the wind is low enough, we will use a
>>>> crane tomorrow to take down the tower sections up (50ft) and then lift
>>>> the combined tower and wind generator. This plan hasn't been
>>>> finalized, however.
>>>>
>>>> -Jim
>>>>
>>>> James Jarvis wrote:
>>>>      
>>>>> Hi Dick and Group,
>>>>>
>>>>> The tower raising got pushed back a day. It is now happening tomorrow
>>>>> and potentially Thursday.
>>>>>
>>>>> My house is 0.3 miles north of Fremont. Coming from Winona, take the
>>>>> Lewiston exit off of I-90. Go south on county road 29. It will curve
>>>>> to the right (west). Follow that road about 1 mile to Fremont. Turn
>>>>> right at the first opprotunity (across from the Fremont Store). I
>>>>> will be third "house" on the left.
>>>>>
>>>>> You can reach me on my cell at 507-312-4437.
>>>>>
>>>>> I would imagine activity will start around 9AM tomorrow and conclude
>>>>> at dark.
>>>>>
>>>>> Activity at hand: using gin pole to erect 120 foot tower and install
>>>>> wind generator on top. The manufacturer of the wind generator and the
>>>>> tower will be directing the operation and running it as a training
>>>>> class for a handful of their customers.
>>>>>
>>>>> Any and all are welcome to come out and watch, but I am NOT asking
>>>>> for volunteer labor to erect the tower.
>>>>>
>>>>> -Jim
>>>>>
>>>>> Dick Lindner wrote:
>>>>>        
>>>>>> Could someone please provide driving directions to the site of the
>>>>>> grand tower raising?
>>>>>>
>>>>>> Dick W0RIF
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-- 
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
www.aprsworld.com