Re: Motor weight, size density?

From: Fred or Judy Rash <frash_at_chartertn.net>
Date: Wed, 02 Jun 2010 13:07:41 -0400

Bill,

Thanks for all your help on many items.

I think that everyone will work in grams. Probably we should eliminate
ounces from AMA, NFFS, etc Indoor (and maybe Outdoor) rules whenever
possible.

The unit for length is harder. Most of Europe and the rest of the world
would argue for meters and probably we should also. I believe that most
use g/m of the untied strip. I think in grams naturally from a lot of
chemistry lab time as well as model building time, but do not
automatically think in meters. I can live with either inches or meters.
If I use inches, I always use decimal inches. I never write down a mixed
fraction. If I try CAD which I do occasionally, I never use mixed
fractions there either.

I would even be so extreme as to argue that our schools should teach
decimal fractions before mixed fractions. This should start a strong
off-topic thread. <GRIN>

Fred Rash

On 6/2/2010 12:41 PM, olbill61 wrote:
>
> I'm wondering if there is any way of describing motor weight per unit
> length that is more prevalent than others. The way I started out is by
> dividing total weight of a finished motor in grams by the motor length
> in inches. I think Kang has started using grams per inch for untied
> strip. I think Leo is using grams per meter.
>
> Can any others who have switched to weight per unit length describe
> how they do it? I'm early in the process of doing it this way and
> could switch to a different system without much trouble. I'd like to
> hear from English and European fliers also.
>
>
>
>
>
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Received on Wed Jun 02 2010 - 10:08:01 CEST