>> On 14.11.2012 7:31, mkirda_at_... wrote:
>>> 1) Three of the four batches of rubber are nearly the same at near 4000.
>>> 2) 6/12 Tan SS is the worst at 3400 at best.
>>
>> This is interesting, as the batches that I have tested since 2009 (not
>> all of them) have been quite consistent in energy return. Has the
>> consistency dropped this year? What are the three other batches that you
>> tested? Did you test by winding? How did you define the max turns that
>> you wound the motors to? Is the 6/12 the same cross section as the other
>> three batches?
>
> Data was the same with .051 and .053 sections. Wound to approximately
> .55 in-oz each time, then wound down.
>
> Other batches: 3/99 TanII, TanII with no sticker on box, and some
> TanSS sourced about four years ago also sans vintage. All in the high
> 3900s to low 4000s.
Ok, difference from 3400 to 3900 is about 15%, a bit more than my
average differences from SS to Tan II, but in the ball park anyway. From
that point of view it seems to me that the four-year-old SS is an
outlier, and for some reason the energy reading you get for that batch
is too high. Or your batch sans vintage is one batch (unlike all the
rest) of SS that is as good as Tan II in energy return?!
-Tapio-
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Received on Wed Nov 14 2012 - 06:08:19 CET