The ASA Douglas style 5" by 5" compact plotter is perfect for small craft chart tables. Customize with 1.5mm drilled holes in the center and at the upper scale. This will enable DR and celestial navigation plotting without the need for dividers. Includes reciprocal courses around the perimeter compass rose.
https://www.ebay.com/itm/International-Square-Aviation-Plotter-by-ASA-ASA-CP-P5/221915409138?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D41376%26meid%3Dfd94b43f76364a768e85b2c413b65a27%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D370550875543&_trksid=p2047675.c100005.m1851
