Re: Flight Temperature

From: Tapio Linkosalo <tapio.linkosalo_at_helsinki.fi>
Date: Mon, 26 Feb 2007 13:53:00 +0200 (EET)

On Mon, 26 Feb 2007 dgbj_at_aol.com wrote:

> "I doubt that extrapolating the data that far would give good results."
>
> The effect of temperature on torque is linear, with a nonzero intercept, so
> linear extrapolation would work well.

<start sarcasm>
Ok, so Tan II will reach a point where the torque is zero at -106C, while
SuperSport will give zero torque already at -91C. And, on the other hand,
the hotter you can warm your rubber, the higher torque you will get out of
it?

Too bad I did not know this at the times we used warmers on F1B motors to
get more energy out of them. The thermostat to restrict the warming to
+40C was an expensive unit to buy, as it was obviously useless. And also
shame for the poor guy, whose thermostat broke and his motor warmed too
much. He broke the motor, while he should have known that actually he had
a super-rubber in his model, and he should ha outclimbed all the others
with his hottest motor!
<end sarcasm>

So sorry again, but the torque vs. temperature dependency is linear only
on a limited part of the temperature scale.



-Tapio-
Received on Mon Feb 26 2007 - 04:00:43 CET

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