Quote:
Originally Posted by ADTech
Keep the length of the stub mast above the rotor as short as you can, the bearings in the drive unit will live a lot longer. Elevate the whole drive unit instead.
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I could put the 10' bottom but its going to make it difficult to mount alone w/o falling off the roof, I'm only 5' 7", plus I'm planing on combining the HDB91X (top) DB4E below what should be the spacing?