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jbhart(at)onlyinternet.ne
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 Posted: Mon Jul 31, 2006 10:53 am Post subject: FireFly Takeoff |
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At 02:17 PM 7/31/06 -0400, you wrote:
| Quote: |
QUOTE: "But with a Kolb FireFly you can not load the tail up or down with
prop wash."
Interesting. When I was learning to fly my Firestar II (similar layout,
right?) I was taught that I should have the stick all the way back when I
open the throttle for takeoff, to avoid a possible nose-over. Obviously the
idea is to generate some compensatory down force on the tail. Do you think
that's all irrelevant, then? I'm not sure I want to try it with the stick
forward just to see what happens. Why don't you do that, and report back
how it goes? 
Lee
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Lee,
Since you switched subject from ground handling to takeoff, I changed the
subject line to fit. I agree with you on your take off procedure. I hold
the stick back on take off. The down force you experience on the tail is
from the relative wind generated by forward motion and not prop wash. This
is why I tease the throttle forward until there is enough air velocity over
the horizontal tail surfaces to keep from putting the FireFly on it's
nose.
Jack B. Hart FF004
Winchester, IN
Jack B. Hart FF004
Winchester, IN
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dcreech3(at)hotmail.com
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| Posted: Mon Jul 31, 2006 12:46 pm Post subject: FireFly Takeoff |
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Well, maybe. I'm not convinced, but I have to admit I don't really know.
I've never thought it was necessary to "tease the throttle forward". I
don't JAM it forward, but that's out of respect for the engine, not concern
about nosing over. Empirically, it would be easy enough to determine
whether the prop wash extends down as far as the elevator or not, just by
getting down on your hands and knees immediately behind a Kolb with the
engine running. I'm going to guess you will get a faceful of wind.
Lee
| Quote: | From: "Jack B. Hart" <jbhart(at)onlyinternet.net>
Reply-To: kolb-list(at)matronics.com
To: kolb-list(at)matronics.com
Subject: FireFly Takeoff
Date: Mon, 31 Jul 2006 14:59:11 -0500
At 02:17 PM 7/31/06 -0400, you wrote:
>
>
>QUOTE: "But with a Kolb FireFly you can not load the tail up or down with
>prop wash."
>
>Interesting. When I was learning to fly my Firestar II (similar layout,
>right?) I was taught that I should have the stick all the way back when I
>open the throttle for takeoff, to avoid a possible nose-over. Obviously
the
>idea is to generate some compensatory down force on the tail. Do you
think
>that's all irrelevant, then? I'm not sure I want to try it with the
stick
>forward just to see what happens. Why don't you do that, and report back
>how it goes?
>
>Lee
Lee,
Since you switched subject from ground handling to takeoff, I changed the
subject line to fit. I agree with you on your take off procedure. I hold
the stick back on take off. The down force you experience on the tail is
from the relative wind generated by forward motion and not prop wash. This
is why I tease the throttle forward until there is enough air velocity over
the horizontal tail surfaces to keep from putting the FireFly on it's
nose.
Jack B. Hart FF004
Winchester, IN
Jack B. Hart FF004
Winchester, IN
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