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Aerobatics(at)aol.com
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 Posted: Sat Mar 11, 2006 10:12 am Post subject: Kitfox handling problems Wh wiat! |
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In a message dated 3/11/2006 11:43:31 A.M. Central Standard Time,
bmwebb(at)cox.net writes:
Great ideas. Especially nice to know that many of us have the same issues,
and we all can improve the planes.
I have to agree with all that's been said on this topic. It's well known
that an aft CG will make the elevator sensitive, and a forward CG makes it
mushy. I may go ahead and put my battery in the tail.
I read a study somewhere a long time ago that even a small gap in a control
surface not designed to have one, will reduce the surface effectiveness by
as much as 30%. It also pointed out that gaps did not contribute appreciably
to flutter issues (this was the point of the test, to find flutter causes),
but did greatly increase the authority of the control.
Bradley
That's a drastic change! the ratio of nose to tail weight can be as high as
6 to one or more. Adding a 10 lbs battery in tail could be the same as 60
in nose..... you could make the plane tail heavy a very bad thing..........
calculate first!
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Graeme Toft
Joined: 09 Jan 2006
Posts: 123
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| Posted: Sat Mar 11, 2006 1:22 pm Post subject: Kitfox handling problems Wh wiat! |
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Just on the subject of gaps between control surfaces such as verticle
stabilisers and rudders, Colin Drury (is on the list) has a great solution
for this problem. He could probably be convinced to put some photos up on
Sportflight to show the detail.
Cheers
Graeme
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bmwebb(at)cox.net
Guest
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| Posted: Sun Mar 12, 2006 5:23 am Post subject: Kitfox handling problems Wh wiat! |
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Nah, I'll just go ahead and do it! The math takes too much time away from
flying...
Bradley
<snip>
| Quote: | >> I may go ahead and put my battery in the tail.
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Bradley
<snip>
That's a drastic change! the ratio of nose to tail weight can be as high
as
6 to one or more. Adding a 10 lbs battery in tail could be the same as 60
in nose..... you could make the plane tail heavy a very bad
thing..........
calculate first!
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kitfox-List |
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