[TowerTalk] Upgrading from Rohn 25 to 45

[Bill Coleman]

On Apr 15, 2006, at 7:57 PM, bob finger wrote:

> To convert your Rohn 25 base to  handle Rohn 45 cut off the Rohn 25 at
> the base, make the concrete essentially flat then drill a hole,  
> insert a
> pier pin and epoxy it in.  Now you can install any tower you wish  
> using
> a pier pin base.

Doesn't Rohn 45 require a larger tower base than Rohn 25? Isn't the  
standard Rohn 25 base 2 feet square, whereas Rohn 45 is more like 2.5  
feet square?

This would seem to be a difficult conversion, unless you can somehow  
add concrete to oppose the greater potential downforce of the Rohn 45.

The guy anchors may need similar beefing up, too.

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Quote: "Not within a thousand years will man ever fly!"
             -- Wilbur Wright, 1901