[TowerTalk] Rohn HDBX 48' concrete base

[Paul Ferguson]

The Rohn HDBX 48 foot self-supporting tower is built now by Thomas 
Shelby & Company, Inc. using the original ROHN tooling. See:
http://www.criticaltowers.com/BX%20Series%20Towers/Web%20Pages/BX%20Series%20Tower%20Page.htm

The tower specs are also available at this site. The HDBX 48 
specification is 18 square feet of antenna and 360 thrust pounds. The 
maximum size antenna boom is stated to be 10 feet.

The foundation for the base stubs is concrete measuring 5.75 feet x 
5.75 feet x 4 feet deep = 4.9 cubic yards of concrete.

If one plans to only use the HDBX 48 with antennas that do not exceed 
6 square feet, has anyone done calculations to see if a smaller 
concrete base can be used?

Paul Ferguson
K5ESW
Raleigh, NC