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Aft CG WAS: Gap Seal Affect

 
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Michel



Joined: 10 Jan 2006
Posts: 966
Location: Norway
PostPosted: Fri May 19, 2006 3:33 am    Post subject: Aft CG WAS: Gap Seal Affect Reply with quote
Quote:
From: Bradley M Webb [bmwebb(at)cox.net]
Too far aft, and it will get so sensitive as to be uncontrollable.

I am not a test pilot and I strive to keep my CG exactly where it should be. But, in the flight simulator I use, I experiment a bit and my experience is that, if the CG is rather aft, the stall characteristics change in the way that the plane stalls from one wing or the other and it's difficult to "mush down" as I do with the real plane. An aft CG also makes the virtual Kitfox more prone to ground loop.
I don't know if this is true for real-life and I don't want to base my knowledge on a computer model but ... does this make sense to you guys?

Cheers,
Michel

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bmwebb(at)cox.net
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PostPosted: Fri May 19, 2006 3:58 am    Post subject: Aft CG WAS: Gap Seal Affect Reply with quote
At least my RC aerobatic aircraft behaves as you said. Forward CG, and full
stall mushes wings level. Aft CG, and it starts wing rocking. But the aft CG
sure makes the responsiveness better.

Bradley

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wingnut



Joined: 11 Jan 2006
Posts: 356
PostPosted: Fri May 19, 2006 5:10 am    Post subject: Re: Aft CG WAS: Gap Seal Affect Reply with quote
Quote:
I don't know if this is true for real-life and I don't want to base my knowledge on a computer model but ... does this make sense to you guys?

Computer model? Can you post more info on that? Is it a custom sim or a new plane model for an existing sim? Would it be possible for me to acquire one?

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nandrand(at)xtra.co.nz
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PostPosted: Fri May 19, 2006 7:02 pm    Post subject: Aft CG WAS: Gap Seal Affect Reply with quote
Hi Guys & Gals.
Re. flight sim Kit-fox, this can be down loaded
from, www.flightsim .com , you will have to register as member, but it's
free.I fly MicroSoft2004, Kit-Fox performs OK but I'm still learning!!!!!!!
Regards to
all Noel
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janderson412(at)hotmail.c
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PostPosted: Sat May 20, 2006 12:14 am    Post subject: Aft CG WAS: Gap Seal Affect Reply with quote
My C of G is on the forward limit with just me flying and with gap seals
it'll stall land ok, however I tend to do tail low wheelers. The trim is set
almost right aft in this config for landing. John A Series 5

From: Michel Verheughe <michel(at)online.no>
Reply-To: kitfox-list(at)matronics.com
To: <kitfox-list(at)matronics.com>
Subject: Aft CG WAS: Gap Seal Affect
Date: Fri, 19 May 2006 13:32:29 +0200 (CEST)


Quote:
From: Bradley M Webb [bmwebb(at)cox.net]
Too far aft, and it will get so sensitive as to be uncontrollable.

I am not a test pilot and I strive to keep my CG exactly where it should be.
But, in the flight simulator I use, I experiment a bit and my experience is
that, if the CG is rather aft, the stall characteristics change in the way
that the plane stalls from one wing or the other and it's difficult to "mush
down" as I do with the real plane. An aft CG also makes the virtual Kitfox
more prone to ground loop.
I don't know if this is true for real-life and I don't want to base my
knowledge on a computer model but ... does this make sense to you guys?

Cheers,
Michel

_________________________________________________________________
Discover fun and games at (at) http://xtramsn.co.nz/kids

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