Overview
Enlist the help of our CR Circular Computer to assist you in everything from solving wind triangles, to polar grid navigation and pressure pattern flying.

Features
Versatility and solid construction make this a reliable choice. Includes an instruction manual and vinyl carry case. 4 1/4-inch diameter.

    * Solves high- and low-speed problems
    * Automatically compensates for temperature rise
    * Takes compressibility factors into account