I'm guessing you have something like http://cgi.ebay.co.uk/ws/eBayISAPI.d...9&category=361 which is quite a rare collectors piece.


Try the following...

http://www.mat.bham.ac.uk/C.J.Sangwi...liderules.html

http://www.sliderule.ca/


I have to confess, I have a small private collection of interesting slide rules, but an Otis King cylindrical has very sadly somehow escaped me. Amongst aviation slide rules I own are...

USAF type CPU-73A/P "Attack computer"

RAF Lifeboat site computer Mk.1

A small 6" log-log rule stamped "Dowty aircraft components, Cheltenham"

A 6" specialist slide rule for calculating air flow rates, stamped "Lucas Gas Turbine Equipment"

A Scout Helicopter "Flight Envelope computer".


There, my secret's out, I am a very sad individual with very odd hobbies.

G

Genghis the Engineer

Many thanks for the information -- you're a star !

It is indeed the item you suggest, with the exception that the "sleeve" is brass on mine, as opposed to black (plastic?) on the one you refer to.

Otis King manual duly downloaded from www.sliderule.ca/manual.htm ! YEY ! :D :cool:


PS -- Don't think you're sad at all ! Some of these slide rules are very lovely items ! :)