Nautical Triangles

Inoue Type
Nautical Triangles, a position finder for the navigator, consisiting of a danger-angle triangle and a protractor triangle made of transparent plastic, 36cm.

Kent Type
Two 45° triangles provide an easy method for plotting position and doing other chart work. Using protractor sacles, the triangle is easily aligned in any direction with a chart meridian. Direction is maintained as one triangle is slid along the other to the desired position. Durable, clear, vinylite. Long side length 30cm.