ATN Sailing Equipment and Gear
ATN Products- The Mastclimber
Climbing the mast has never been easier or safer!
Traduction Traduction
Mastclimber NEW If you want to keep your favorite bosun chair, ATN now offers the MastClimber Kit. For $275.00, ATN will provide 2 Ascenders + Footstrap + Upper Extension with bag.

MastClimber Kit
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The ATN Mastclimber is the only single handed bosun's chair
that allows the operator to work ABOVE the mast head
without leaving the chair. The Mastclimber makes climbing the mast safer and easier.

Attention! The new ATN Mastclimber does not require a static line anymore
as it can be fit OVER any existing halyard.

About MastClimber

The MastClimber is simple to use for climbing the mast, its set up time is minimal, and its rugged and simple construction will ensure years of use, allowing you to maintain and check aloft all the standing rigging of your sailboat.

Climbing the Mast
Mastclimber Mastclimber Mastclimber

The MastClimber is a great system as it uses the leg muscles to climb, allowing you to reach the mast head not exhausted by the climb, and since it rides onto a static line, taut between the deck and the mast head. The Mastcliber prevents you from swaying away from the mast, helplessly, even if the boat heels over making climbing the mast easier and safer.

Climbing the Mast and Above the Masthead
Mastclimber Mastclimber

The MastClimber consists of 2 parts, a bos'n's chair with back rest and one-way jammer, and leg straps, with loops for the feet, with one-way jammer.

Operation of the MastClimber for climbing the mast is done by alternatively standing up on the leg straps, which allows you to slide up the one-way jammer of the bos'n's chair, then sitting onto the bos'n's chair, which allows you to slide up the one-way jammer of the leg strap, then standing up on the leg straps. To descend the mast, procedure is reversed.

The MastClimber in action climbing the mast.
Alessandro Di Benedetto of Team Plastique in the Vendee Globe 2012-2013 goes up the mast with the ATN Mastclimber in mid-ocean. Video in 3 parts.


The price of the Mastclimber is $450.00

The Mastclimber will fit OVER any rope halyard, from 3/8" up to 5/8".

Buy Now Contact ATN for more information.
Testimonials and Reviews:

Hi Etienne,
I met you at the Miami boat show and purchased a Mast Climber and a Gale sail. I have been up the mast twice in the last three days. The mast climber works very well (and impressed my neighbors!). Many thanks for your excellent products.
Sarah H.

ATN Mastclimber Review

Please visit the link for the online magazine review Tried and Tested from Yachting Monthly magazine.

ATN Mastclimber Testimonial Etienne,
I found my picture of using your Mastclimber. We chatted at the Chicago Strictly Sail Boat Show in January. I love this thing.
John F.

"See the article in Sailing World by Emma Richard, one of the competitors of Around Alone, going aloft to repair her main halyard, at sea, for 4 hours with the ATN Mastclimber."

- Sailing World -

Buy Now Contact ATN for more information.
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