Jeppesen CR Circular Computers offer solid construction and proven performance.  Whether you're solving wind triangles, polar grid navigation or pressure pattern flying, CR Computers prove their value and versatility every day.  Useful in high and low speed problems.  They automatically compensate for temperature rise and compressibility factors.  Instruction manual available online,  vinyl carrying case  included .



6" inch diameter



  • Due to its larger easier to read numbers it gives the user increased accuracy.


  • Solid construction with performance and durability 


  • Essential equipment for anybody sitting flight crew exams


  • Includes a free vinyl protective case !