APR, Time, Speed & Distance Computer w/ Protractor Plotter, p/n APR -202
APR has designed the first combination T/S/D pocket computer combined with rotatable plotter cursors. Align the airplane cursor along any appropriate meridian. PVC Plastic discs, 3-3/4" dia. Plastic cursor is 4-3/4" diameter. Comes with comprehensive instruction booklet.
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