[TowerTalk] Fw: Rohn 45 Tower Install

[rabrus at rockwellcollins.com]

I am in the process of planning tower erection of my Rohn 45.   I have my 
base section poured and am now planning on guy anchors.   I am erecting 
right next to the house and will install  a house bracket at 23 feet and 
am planning one set of guy wires at 65 feet on a 67 foot tower.    I am 
planning on 8 feet above the tower with a mast., and antennas to be 
mounted are a TH-11 at 3 feet above the tower, a small 6 meter beam, a 15 
element 2 meter beam and 2 meter vertical antenna at the top. 

My questions is whether or not my plans for elevated guy wire anchors are 
sufficient.   I am planning on 4 to 5" pipe.  Lengths are 15 feet and I 
would like to put them 5 feet in the ground with 10' exposed to have 
plenty of room to drive under the guys with vehicles.  With this height I 
was planning 48 feet from the tower base to keep the angles on the guys 
close to the Rohn suggested install.     I was planning on drilling an 18" 
hole 5 feet deep with 6" of gravel in the base for drainage  The pipes 
would then be set in 4.5 feet of concrete. 

Two questions.  First, will this be sufficient for my guy anchors or do I 
need to lower them to 8 feet or worst case for me is 6 foot.  Second, is 
there any reason I need to fill the posts with concrete.   I have seen 
multiple posts with a multitude of ideas on this type of installation 
recommendations and am looking to ensure I am engineered sufficient to 
keep the tower in the air. 
Thanks

Bob
WV0C
bobbrus1 at aim.com




-----Original Message-----
From: bobbrus1 at netscape.net
To: towertalk-owner at contesting.com
Sent: Wed, Aug 25, 2010 5:59 pm
Subject: Rohn 45 Tower Install

I am in the process of planning tower erection of my Rohn 45.   I have my 
base section poured and am now planning on guy anchors.   I am erecting 
right next to the house and will install  a house bracket at 23 feet and 
am planning one set of guy wires at 65 feet on a 67 foot tower.    I am 
planning on 8 feet above the tower with a mast., and antennas to be 
mounted are a TH-11 at 3 feet above the tower, a small 6 meter beam, a 15 
element 2 meter beam and 2 meter vertical antenna at the top. 

My questions is whether or not my plans for elevated guy wire anchors are 
sufficient.   I am planning on 4 to 5" pipe.  Lengths are 15 feet and I 
would like to put them 5 feet in the ground with 10' exposed to have 
plenty of room to drive under the guys with vehicles.  With this height I 
was planning 48 feet from the tower base to keep the angles on the guys 
close to the Rohn suggested install.     I was planning on drilling an 18" 
hole 5 feet deep with 6" of gravel in the base for drainage  The pipes 
would then be set in 4.5 feet of concrete. 

Two questions.  First, will this be sufficient for my guy anchors or do I 
need to lower them to 8 feet or worst case for me is 6 foot.  Second, is 
there any reason I need to fill the posts with concrete.   I have seen 
multiple posts with a multitude of ideas on this type of installation 
recommendations and am looking to ensure I am engineered sufficient to 
keep the tower in the air. 
Thanks

Bob
WV0C
bobbrus1 at aim.com