sell Navigation Parallel ruler ,Nautical Triangles with Handle
Nautical Triangles, Navigation Parallel Ruler,
sell Navigation Parallel ruler ,Nautical Triangles with HandleIMPA 371001 371002 371007A 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 ArmsSolid brass arms and handles.1/8" (4 mm) thickness; 15" (381 mm) length.Wt: 7 oz. (199 g). Protractor Triangle with HandleInscribed with contrast-enhancing colors.Using two 45° 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).
, Navigation Parallel Ruler