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Thanks, Greg. I found one for $59 on eBay so I'll wait awhile. Meanwhile, I 
started thinking about unpacking my 20" rule and for some reason that got,me 
to wondering if there was an iPad app.

Sure enough, there is - iSlideRuleHD. Developer says it's 16", but with my pad 
in landscape it's more like 24. The span between 80 and 90 on the S scale 
looks to be 3/8"; if you tap the cursor it gives the reading to 3 decimal 
places - logs to 5. My only nit with it so far is it doesn't label the 
complements on the trig scales. But for $2, what the hey.

At the very least it's been a nice diversion on a dark damp drizzly Sunday. 

Hewitt





Sent from my iPad

On Dec 16, 2012, at 1:17 PM, "Greg Rudzinski"  wrote:

> Hewitt,
> 
> N9081-3 is the number on mine.  It is scaled in degrees and tenths. It 
slides well for it's age and hasn't needed adjusting. Ebay may have a few 
offered. $20 should get a good one.
> 
> http://sliderule.ozmanor.com/rules/sr-0099-ken9081-3-01.html
> 
> Greg Rudzinski
> 
> 
> [NavList] Re: Longitude by Time Sight Using a Slide Rule
> From: Hewitt Schlereth
> Date: 16 Dec 2012 11:58
> Greg, I used to carry a 6" plastic cheapie for s-t-d in the cockpit. Never 
knew K&E had a plastic one. Can you tell me the model # or #s?
> 
> Hewitt
> 
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