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Michel
Joined: 10 Jan 2006
Posts: 966
Location: Norway
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 Posted: Mon Aug 25, 2008 10:42 am Post subject: General balance. |
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| Quote: | From: Tom Jones [nahsikhs(at)elltel.net]
Michel, a trim tab on a flaperon has been used by Kitfox builders to correct for
a "heavy wing".
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Thanks Tom. I know that it has been used before because I remember talking about it on this forum for maybe three years ago. But since I didn't get much response this time, I was wondering if the current school of thoughts had changed without me knowing it. Sometimes I fall asleep in the classroom! 
The thing is, why do I, and a few others, experience a 'heavy wing' when everything seems to be spick and span and well aligned? Well, there can be a last thing: A slight warp in the flaperon itself. But while it is easy to measure the wash-out of the wing, it is more difficult to measure a warp in the flaperon, less to correct it other than with a tab.
Cheers,
Michel Verheughe
Norway
Kitfox 3 - Jabiru 2200 ... flying as a PAX
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Kitfox 3 - Jabiru 2200 |
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Guy Buchanan
Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA
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| Posted: Mon Aug 25, 2008 8:14 pm Post subject: General balance. |
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At 11:42 AM 8/25/2008, you wrote:
| Quote: | The thing is, why do I, and a few others, experience a 'heavy wing'
when everything seems to be spick and span and well aligned?
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Well, there's lateral CG, which no-one measures, and is off
anyway unless the passenger weighs exactly what the pilot weighs.
There's torque and slipstream, both of which are "asymmetric" And
then of course there's the Coriolis force, that makes toilets rotate.
(Do Kitfoxes in the southern hemisphere have the other wing heavy?)
And then of course there's the earth's magnetic field; and don't
forget the centripetal acceleration caused by the earth surface
1732fps rotational velocity; and that doesn't even include our
orbital velocity or the precession of the equinox. . .
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.
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Guy Buchanan
Deceased K-IV 1200
A glider pilot too. |
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Michel
Joined: 10 Jan 2006
Posts: 966
Location: Norway
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| Posted: Mon Aug 25, 2008 10:40 pm Post subject: General balance. |
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| Quote: | From: Guy Buchanan [bnn(at)nethere.com]
then of course there's the Coriolis force, that makes toilets rotate.
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I am sorry, Guy, but it is your bowel movements that rotate and not the toilet itself. Something to do with general relativity and quantum entanglement, I think ...
Cheers,
Michel
DO NOT ARCHIVE
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Kitfox 3 - Jabiru 2200 |
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Tue Aug 26, 2008 2:26 am Post subject: General balance. |
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Sounds like you "low-wing" guys are gonna have to fly around the
equator to even things up....
Lynn Matteson
Kitfox IV Speedster
Jabiru 2200, 562 hrs and holding for repairs
Status: "Condition grounded, but determined to try." (Pink
Floyd..."Learning to Fly")
do not archive
On Aug 26, 2008, at 2:38 AM, Michel Verheughe wrote:
| Quote: | > From: Guy Buchanan [bnn(at)nethere.com]
> then of course there's the Coriolis force, that makes toilets rotate.
I am sorry, Guy, but it is your bowel movements that rotate and not
the toilet itself. Something to do with general relativity and
quantum entanglement, I think ...
Cheers,
Michel
DO NOT ARCHIVE
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List">http://www.matronics.com/Navigator?Kitfox-List</a>
forums.matronics.com</a>
www.matronics.com/contribution</a>
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Lynn
Kitfox IV-Jabiru 2200
N369LM |
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rjdaugh
Joined: 30 Aug 2006
Posts: 195
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