Re: Re: Double strand motors?

From: Chris and Josette Borland <candjborland_at_surewest.net>
Date: Mon, 2 May 2011 21:14:05 -0700

The big advantage of a four strand motor is that you can taylor the
width of the motor. Instead of having too many turns left on a .125
width motor you can make a .140 (.070 x 4 strands) or a .150 (.075 x
4 strands) which will give you more climbing power and also use up
more turns - faster. You have to compare to see what will work best;
i.e. the stopwatch knows all! You also need to know someone
"friendly" who has a rubber stripper.

Chris Borland - Sacramento


On May 2, 2011, at 7:26 PM, Mark F1diddler wrote:

>
>
> --- In Indoor_Construction_at_yahoogroups.com, "torqueburner"
> <beammeup42_at_...> wrote:
> >
> > At our recent state Science Olympiad competition, I saw one
> helicopter that was flown on what appeared to be a motor made from
> two strands of thinner rubber ->>
>
> Did that one win?
>
> << is there an advantage to this, as opposed to a single loop of
> thicker rubber?>>
>
> The knot is half the size and weight.
>
>
Received on Mon May 02 2011 - 21:14:09 CEST