Micro Pocket Size Circular E6B Flight Computer, useful in high and low speed problems they automatically compensate for temperature rise and compressibility factors.
Includes vinyl protective case.
Standard version 4-1/4″ diameter, the original standard issue circular slide rule for pilots. Solid construction with performance and durability, essential equipment for anybody sitting flight crew exams.
Whether you are solving wind triangle problems, polar grid navigation or pressure pattern flying, it will prove its usefulness and versatility constantly.