[TowerTalk] Digging a 5'x5'x8' tower footing

[Jim Lux]

RICHARD SOLOMON wrote:
> If my math is correct (only took off the left shoe), the LM-470 requires 
> a base
> 3.5' X 3.5' X 7.5'. that equals a 4' diameter by 7.5' deep hole.
> Now I need to talk to the Tower folks and see if they would sign off on 
> that.
>  


If volume is the relevant thing, yes.

As a practical matter, the holes I've seen drilled have always been much 
deeper than in diameter.  In your example, perhaps 3 ft in diameter by 
13 feet deep, or 2.5 ft by 19-20 ft.

An interesting question.. what if you were just to drill/dig a 2 foot 
diameter hole and bury some length of tower segments, in either dirt or 
concrete?  If you do it like telephone poles, they bury 15-20% of the 
overall length and they do it in plain old dirt.