Description

Whether you are solving wind triangle problems, polar grid navigation or pressure pattern flying they will prove their usefulness and versatility constantly. Useful in high and low speed problems they automatically compensate for temperature rise and compressibility factors.

Larger version 6″ Diameter
The original standard issue circular slide rule for pilots
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 vinyl protective case