Re: Re: measure the torque in level flight

From: Tapio Linkosalo <tapio.linkosalo_at_helsinki.fi>
Date: Thu, 15 Mar 2007 17:50:44 +0200 (EET)

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-
Received on Thu Mar 15 2007 - 08:54:37 CET