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ATN Bosun Chair Conversion Kit

  • Includes (2) Ascenders, Foot Strap and Upper Extension
  • Applications: Bosun Chair, Bosun Chair is Not Included
  • , Bosun Chair is Not Included
  • Item #: 
    Model #: 


    Shipping Weight: 
    2.00 Lbs.
    List Price: 
    Our Price:
    Status:  null In Stock

    Quantity : 



    • Convert your favorite old bosun chair into an easy to use ATN MastClimber with the ATN MASTCLIMBER KIT
      • Bosun Chair is Not Included in the kit
    • Kit Includes:
      • (2) Ascenders
      • Footstrap
      • Upper Extension with bag
    • The ATN Ascender
      • Designed by ATN and manufactured by CMI, this is the only ascender conceived to operate in a marine environment
      • Manufactured with anodized Aluminum and Stainless Steel, it will not rust
      • Its open design allows it to be fitted OVER the existing taught halyard / synthetic shroud / stay. From 3/8" up to 5/8"
      • It allows the sailor to climb the mast alone
      • It can also be used as a safety, in conjunction with the ATN Mastclimber.
    • 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
    • ATN Mastclimber does not require a static line anymore as it can be fit OVER any existing halyard
    • The MastClimber is simple to use for climbing the mast
    • Set up time is minimal
    • Its rugged and simple construction will ensure years of use, allowing you to maintain and check aloft all the standing rigging of your sailboat
    • 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
    • The MastClimber consists of 2 parts
      • A bos'n's chair with back rest and one-way jammer
      • 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

    ATN Mastclimber Bosun Chair
    Item #: 614392
  • Includes Back Rest
  • Static Line No longer Required
  • Can Fit Over any Existing Halyard, SWL: 600 lbs.
  •  Include
    Model #:
    Plastimo Bosun Chair Comfort Model
    Item #: 615023
  • Seat Dimensions: 15.35" x 7.09"
  • 40 mm Webbing, Safe Working Load: 220.5 lbs
  • Fully Adjustable Seat Angle
  •  Include
    Model #:
    Harken Ballistic Nylon Deluxe Bosun Chair
    Item #: 615159
  • Extra Wide Padded Seat And Adjustable Back Support
  • Color: Black
  • Material: Ballistic Nylon, High-strength Webbing
  •  Include
    Model #:

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