Bygrave slide rule, MkII

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Bygrave slide rule Mk 2. Black & white photograph from the Science Museum Photo Studio Archive
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Bygrave slide rule, MkII
Science Museum Group
© The Board of Trustees of the Science Museum

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.

Details

Category:
Navigation
Object Number:
1922-670
credit:
Air Ministry Laboratory

Cite this page

Rights

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

Using our data

Download

Download catalogue entry as json

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.