Slide rule

Slide rule in case. Copyrighted by A. M. Gordon of Glasgow. The side with the three slides gives aid to the design of propellers for ships taking into to account speed, horsepower and efficiency (revolutions etc). The reverse side with two slides gives indicated horsepower and propeller diameters.

Object Details

ID: EQS1209
Collection: Testing, measuring and design instruments
Type: Slide rule
Display location: Not on display
Creator: Gordon, A. M.
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 20 mm x 415 mm x 142 mm