That's the part I couldn't figure out "provided that you can catch the
model". I think of cruising somewhere up near the ceiling. Dave's reply
shed some additional light on the subject.
LeRoy Cordes
AMA 16974
Chicago, IL
In God We Trust
On Thu, 15 Mar 2007 17:50:44 +0200 (EET) Tapio Linkosalo
<tapio.linkosalo_at_helsinki.fi> writes:
>
> On Thu, 15 Mar 2007, torqueburner wrote:
>
> > > Out of curiosity - How the devil would you do this ???
>
> > Leroy, the way we've done it is to launch at a low torque, so that
> the plane only climbs a little
> > after it is released. Then, when it appears to be flying level
> without climbing anymore, grab
> > the plane, remove the rubber, and measure the torque.
>
> I've seen Sven Pontan measure the launch torque of a F1D with a
> tiny
> torque meter (similar to the one used for winding, but smaller, and
> a
> double hook to grap the prop spar), and such a unit could be easily
> used
> to measure the torque at any moment of the flight (provided that you
> can
> catch the model, so for cruise launch with mid-torque to see first
> that
> the model flies level). I have planned to build one, someday I
> will...
>
>
>
> -tapio-
>
>
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LeRoy Cordes
AMA 16974
Chicago, IL
In God We Trust
Received on Sun Mar 18 2007 - 19:54:58 CET