[TowerTalk] MA towers, Topside rotors & mast height.

[Jim Jarvis]

> With the rotor at the top and any mast being held by only the
>  top clamp of the rotor, how can people be using 5'-10' masts?

Placing any more than 12-18" above the rotor is nothing short of
crazy.  Wishful thinking would be the polite expression.  Waiting
for disaster is a close second.

Rotor load figures are derated by x2 by the second mast mount
fixture, as it is. 

I have assumed that those using longer masts are base rotating
the MA series towers. 

n2ea