I have been looking at these, very interesting observations
I had the opportunity to “witness” the ATN Top Climber mast climbing system the other day. One of my boat neighbors used his to go to his masthead to install a wind instrument. I stood on the pier and watched.
First, you can read about the system on their website here: http://www.atninc.com/atn-mastclimber-sailing-equipment.shtml
The system works by attaching yourself, via ascenders, to a halyard that is fixed in a static position. The halyard is simply a standing line pulled taut with your winch, upon which you climb with the ascenders. You sit in the harness, which has a hard seat incorporated into it, and put your feet into the “stirrups.”
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