solder_guy Posted July 17, 2007 Share Posted July 17, 2007 While doing a search for mechanical calculators .. I came across this calc .. which has a reputation for being used by rally racers back before the invention of the electronic calc. They were used for calculations of time trials, distance, fuel use, etc. Very popular with the rally racers of the '50s through the '70s. Handheld and looks like a small pepper grinder. Rob Mitchell The Curta Calculator http://www.usa7s.com/aspnetforum/upload/90626608_curta.jpg Link to comment Share on other sites More sharing options...
slngsht Posted July 18, 2007 Share Posted July 18, 2007 and if the navigator makes a mistake, you can pound him in the head with it. I love multi-purpose tools. Link to comment Share on other sites More sharing options...
solder_guy Posted July 18, 2007 Author Share Posted July 18, 2007 and if the navigator makes a mistake, you can pound him in the head with it. I love multi-purpose tools. :lol: BTW: these calculators were the HP of their day. $$$$$ on eBay. Rob Link to comment Share on other sites More sharing options...
solder_guy Posted September 5, 2007 Author Share Posted September 5, 2007 From a recent eBay auction of a booklet with time tables ... about using the Curta Calculator for Rallying. The booklet went for $42 on eBay. Rob Description: "This 8 & 1/2 by 6 inch booklet is for use with early Rallyes. I used this many times during the 50's & 60's. Gives minutes per mile factors to the sixth decimal place. Accurate to .000005 of a minute. Therefore the maximum tabular error after 1000 miles of rallying is three tenths of a second. Great for use in current nostalgic rallyes Copyrighted by Allan Jay Kalb in 1959. 59 pages." http://www.usa7s.com/aspnetforum/upload/563394867_curta1.jpg http://www.usa7s.com/aspnetforum/upload/2012367744_curta2.jpg http://www.usa7s.com/aspnetforum/upload/850088408_curta3.jpg Link to comment Share on other sites More sharing options...
powderbrake Posted September 5, 2007 Share Posted September 5, 2007 I have always been facinated by the Curta Calculator. I would love to have one, if only to disassemble it Link to comment Share on other sites More sharing options...
stevet Posted September 5, 2007 Share Posted September 5, 2007 Friend of mine in London has one - might see if I can persuade him to let me have it on 'permanent loan' Link to comment Share on other sites More sharing options...
solder_guy Posted September 5, 2007 Author Share Posted September 5, 2007 I would like to borrow one .. just to play with it .. and then return. There are two Curta simulators out there. Also the Curta company did make a working cutaway view demonstrator to illustrate how it works. Rob Link to comment Share on other sites More sharing options...
powderbrake Posted September 6, 2007 Share Posted September 6, 2007 I looked at the Curta link. Well, now I can see how they are made, and also how foolish it would be to ever try to disassemble one. :crazy: Link to comment Share on other sites More sharing options...
solder_guy Posted October 8, 2007 Author Share Posted October 8, 2007 Damn .. I wish I could get my hands on a Curta! Rob Link to comment Share on other sites More sharing options...
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