Circular slide rules

     Home          Slide Rules          Accuracy          Linear          Circular          Cylindrical          Eximius Diu          Guestbook

Fowlers Magnum Long Scale

A bigger, and hence more accurate, version of the Fowlers Long Scale. Diameter 120 mm. The long scale has 6 turns making a scale length of 1.2 metres.

D Scale length: 1508 mm. Significant digits: 3.8 to 4.6.


Copyright 2012, Dave Hoyer.