Sell Navigation Parallel ruller  , Nautical Triangles with Handle

Navigation Parallel ruller  , Nautical Triangles with Handle You May Also Be Interested In: slid
IMPA 371001 371002 371007
A parallel ruler is used to determine the direction of a course plotted on a chart. The ruler is walked from the course line to the nearest compass rose. The course heading can then be determined.
15" Brass Arms
Solid brass arms and handles.
1/8" (4 mm) thickness; 15" (381 mm) length.
Wt: 7 oz. (199 g) .

Protractor Triangle with Handle
Inscribed with contrast-enhancing colors.
Using two 450 triangles provides easy method of plotting and performing chart work.
Protractor scales allow easy alignment with chart meridian, in any direction.
Direction is maintained as one triangle is slid along the other to desired position.
Durable, clear vinylite.
Short sides (170 mm) .
.08" thick (2 mm) .
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IMPA 371001
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