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Weems & Plath Bi-rola Rule Rolling Plotter

  • Four-way Rolling Motion, Vertical and Horizontal Rolling
  • Function: Simplifies Course and Plotting Calculations
  • Includes Protractor Markings and a Nautical Mile Scale
  • Item #: 
    803425
    Brand: 
    Weems & Plath
    Model #: 

    155

    Packaged Weight: 
    0.55 Lbs.
    List Price: 
    $122.99
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    $99.99
    803425 Weems & Plath Weems & Plath Bi-rola Rule Rolling Plotter 155

    The original Weems & Plath bi-rola™ Rule Rolling Plotter - its patented vertical and horizontal rolling motion simplifies course and plotting calculations, while the unique radial arm allows you to automatically include compass corrections in your course plotting.

    Features:

    • Patented four-way rolling motion
    • Roller body has protractor markings and a nautical mile scale
    • Radial arm has Loran interpolator scales and 200 millimeter rule
    • Automatic compass corrections
    • When radial arm and body are used jointly, the Bi-Rola rule becomes a 17" (440 mm)divider (approximately)
    • A speed/time/distance table is included
    • Easy to follow instructions
    • Packaged in a protective, durable, vinyl pouch

    Specifications:

    • Length: 13-7/8"
    • Width: 2-5/8"
    • Thickness: 1"
    • Weight: 12 oz.
    Weems & Plath Bi-rola Rule Rolling Plotter
    79.99
     
    Status:  null In Stock

     


     

    The original Weems & Plath bi-rola™ Rule Rolling Plotter - its patented vertical and horizontal rolling motion simplifies course and plotting calculations, while the unique radial arm allows you to automatically include compass corrections in your course plotting.

    Features:

    • Patented four-way rolling motion
    • Roller body has protractor markings and a nautical mile scale
    • Radial arm has Loran interpolator scales and 200 millimeter rule
    • Automatic compass corrections
    • When radial arm and body are used jointly, the Bi-Rola rule becomes a 17" (440 mm)divider (approximately)
    • A speed/time/distance table is included
    • Easy to follow instructions
    • Packaged in a protective, durable, vinyl pouch

    Specifications:

    • Length: 13-7/8"
    • Width: 2-5/8"
    • Thickness: 1"
    • Weight: 12 oz.
     
     

     
     

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