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  5. Weems & Plath 103 Protractor Triangle

Weems & Plath 103 Protractor Triangle

Weems & Plath 103 Protractor Triangle

฿705
有库存24小时内发货
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产品描述

Often used in a combination of two, this Weems & Plath 103 Protractor Triangle provides a straightforward method of plotting and performing chart work.  Each triangle is inscribed with black markings.  The protractor scale on the triangle can aid in drawing a bearing line on a chart, and the 90° angle is helpful when determining lines of position.

  • 7-3/4" sides x 11" (19.69 cm x 27.94 cm) hypotenuse
  • Protractor scale allows easy alignment with chart meridian in any direction
  • Direction is maintained as one triangle is slid along the other to desired position
  • 90° angle helps determine lines of position
  • Made from clear, durable vinylite


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