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ATN
Mastclimber Bosun's Chair

$434.99

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In stock online.
Model # 12552832 | Mfg # 505
The only bosun’s chair that allows solo, unassisted ascents of the mast, the Mastclimber fits over any taut 3/8" to 5/8" rope halyard. Constructed from 1 1/2" ballistic nylon webbing with a fiberglass-reinforced seat, Mastclimber combines a bosun’s chair and leg straps with a pair of one-way anodized aluminum/stainless jammers, located at the chair seat and the intersection of the leg straps. Climb the mast quickly and safely using only leg muscles. With no need for static lines, the easy-to-use climber is operated by alternatively standing up on the leg straps, which allows you to slide up the one-way jammer of the bosun’s chair. To descend the mast, the procedure is reversed. Recommended by Practical Sailor in June 2010. Maximum waist size 50".

Mastclimber Bosun's Chair

Type Chair

REVIEW SNAPSHOT®

by PowerReviews
ATN Mastclimber Bosun's Chair
 
4.2

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

80%

of respondents would recommend this to a friend.

Pros

  • Easy to use (5)
  • Well built / quality (5)

Cons

No Cons

Best Uses

  • Sailing (5)
    • Reviewer Profile:
    • Casual/ recreational (4)
    • Was this a gift?:
    • No (3)

Reviewed by 6 customers

Displaying reviews 1-6

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4.0

Good and bad

By Reno

from Texas

About Me Casual/ Recreational

Verified Buyer

Pros

  • Easy To Install
  • Easy To Use
  • Quality Construction

Cons

  • A bit tedious

Best Uses

  • Sailing

Comments about ATN Mastclimber Bosun's Chair:

I am a 70yr old male and most of my boating is done as a "single hander". This device is a requirement for going up the mast safely IMHO. My biggest problem is that my short legs only get me about 8" up or down in each iteration. This is due to stretch in the lines. The good news is that the system works and allows work to get done when needed. The bad news is that I get impatient at the slow pace. I did appreciate the ability to use the "carrying bag" as a tool/materials bag when going aloft. One less item to keep track.

  • Was this a gift?:
  • No

(1 of 1 customers found this review helpful)

 
5.0

A Must Have

By Mike

from Belle, MO

About Me Advanced

Verified Reviewer

Pros

  • Attractive Design
  • Easy To Install
  • Easy To Use
  • Quality Construction

Cons

    Best Uses

    • Large Boats
    • Sailing

    Comments about ATN Mastclimber Bosun's Chair:

    Makes going up the mast easy instead of a chore. No longer is my wife panicking when I need to do masthead repairs or inspection!

    • Was this a gift?:
    • No

    (1 of 1 customers found this review helpful)

     
    5.0

    Don't even have to crank my son to the top of the mast!

    By Satisfied Dan

    from CT

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy To Use
    • Quality Construction

    Cons

      Best Uses

      • Sailing

      Comments about ATN Mastclimber Bosun's Chair:

      One of my better investments!

      • Was this a gift?:
      • No

      (8 of 11 customers found this review helpful)

       
      1.0

      Major Upset

      By Michael

      from San Pedro, California

      About Me Casual/ Recreational

      Verified Reviewer

      Pros

        Cons

        • Difficult To Use
        • Flimsy Construction
        • Poor Design

        Best Uses

          Comments about ATN Mastclimber Bosun's Chair:

          A few months ago, I purchased a West Marine chair (good product, solid) on a 6:1 block and tackle purchase. I can pull myself up easily and safely but can't get my head over the top of mast due to block and tackle setup. Purchased ATN for that sole purpose - get body over the top of the mast to work effectively.
          I am 53yrs old, 5',8", 175lbs. Had two people assist me first time. Took me over 30 min to get up 43ft mast. Exhausted ! ATN Hardware kept banging against mast and caused severe scratches down to the aluminum. Once at the top, shoes kept sliding out of narrow foot strap webbing, as I tried to work and keep my balance, giving me huge scares (came down immediately). While articulating the required body movements to inch my way up and down the mast, my feet slid out of the small loops, forcing me to stop and concentrate on wiggling my feet back into the loops, that tend to fly in the breeze. Coming down was as difficult as going up. Body process is identical. No easier than going up!
          Gave the system to the two others to try. One made it to the spreaders 20ft up, the other refused to use it - both my age and build.
          ATN is a mountaineering based system and should be understood as such - for those who are trained to climb and in very good shape (both upper and lower body). On a swaying boat, the process is very unstable and even more difficult.
          BTW, mast will need to be painted ($$$$ !! ). Should have heeded the bad product reviews in the various cruising forums, and not purchased. Would recommend WM take a serious look at ATN.
          I and those who helped me, did watch the ATN video various times, just before I went up the mast, to make sure we were going to do it correctly.
          On the other hand it could be that I lack the coordination to properly use the product.

          (3 of 4 customers found this review helpful)

           
          5.0

          Excellent solution to climbing the mast

          By Shearwater

          from Maryland

          About Me Casual/ Recreational

          Verified Buyer

          Pros

          • Easy To Use
          • Quality Construction
          • Singlehanded use
          • Very Safe

          Cons

          • Takes Solid Leg Muscles

          Best Uses

          • Climbing The Mast
          • Sailing

          Comments about ATN Mastclimber Bosun's Chair:

          We've previously tried using a standard bosun's chair (her going up and me hauling her there) and took several weeks recovering from the effort. After much research, we bought the Mastclimber and were delighted with how much easier it was to use. No qualms at all in recommending it for others, you just need some strong leg muscles getting up and down the mast.

          (1 of 1 customers found this review helpful)

           
          5.0

          awesome

          By Sailor Jimbo

          from San Jose

          About Me Professional

          Pros

          • Easy To Use
          • Quality Construction

          Cons

            Best Uses

            • Sailing

            Comments about ATN Mastclimber Bosun's Chair:

            Super awesome and a must have!

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