- Larger version 6" Diameter
- The original standard issue circular
slide rule for pilots
- We highly recommend this version for all
flight crew exams
- 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 !
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.