Bygrave slide rule, MkII
Bygrave slide rule, Mark II
This is an example of a logarithmic slide rule designed by Captain L. C. Bygrave for solving spherical triangles in aerial navigation.
It employs the right-angled spherical triangle formulae and is capable of a comparatively high degree of accuracy. It is necessary in using this slide rule to note down an intermediate result, but as the operations are simple and quick it compares favorably with other methods.
- Object Number:
- Air Ministry Laboratory
Cite this page
We encourage the use and reuse of our collection data.
Data in the title, made, maker and details fields are released under Creative Commons Zero
Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence
Download catalogue entry as json
View manifest in IIIF viewer
Download manifest IIIF
Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.