Originally Posted by speciald
Chart height is not always correct. A friend of mine hit a 75 ft high cable with a 70 ft mast close to Hilton Head.
I don't think I'd be prone to trusting charts, or anything else other than absolute measurement, for 5 feet of clearance from high-tension lines. I don't know as I'd want the top of my mast clearing such lines by only 5 feet, anyway.