Today's Message Index:
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1. 01:59 PM - 3 leaf tail spring. Bolt size (=?iso-8859-1?Q?Geir_Olav_=D8ien?=)
2. 02:05 PM - Re: Re: Kitfox Flight Sim (Michel Verheughe)
3. 04:22 PM - East Coast Kitfox Gathering! (RAY Gignac)
4. 05:12 PM - Re: East Coast Kitfox Gathering! (Glenn Horne)
5. 07:13 PM - Re: 3 leaf tail spring. Bolt size (Tom Jones)
6. 07:40 PM - Re: East Coast Kitfox Gathering! (wingnut)
Message 1
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| Subject: | 3 leaf tail spring. Bolt size |
I am replacing the single leaf tail spring with a 3 leaf. But I do not
know the size of the bolt that is installed. (then I need a =BD=94
longer
bolt ) now. Think it is a 5/16=94 bolt, but cant remember. Anybody that
know the original size of the bolt on my Kitfox 4. (of course I can go
over to the airport, dismantle and find out, but if one of you know the
length and size, I would be thankful).
Will just replace the spring BEFORE it breaks.
Thanks
Geir Olav =D8ien
Kitfox 4
Jabiru 2200.
Message 2
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| Subject: | Re: Kitfox Flight Sim |
On Sep 21, 2007, at 5:20 AM, akflyer wrote:
> what flight sim? any chance of getting a copy of the plane files? I
> like to play on the sim while I am at work for 2 weeks and would like
> to get your plane.
It took me three years to make an excellent model of my Kitfox 3 with a
Jabiru 2200, Leonard. But it is for the X-Plane flight simulator.
Noel is talking about the most common flight simulator: The Microsoft
one. It is an excellent simulator but although I have never modelled an
aircraft with it, I understand that it uses an entirely different
technique that X-Plane. The latter is based on "blade elements." It
means that the entire aircraft is divided into a lot of elements such
as wing sections, each with different coefficients. Microsoft, on the
other hand, works with "look-up tables." It means that if you set the
stall speed to a certain speed, the aircraft will stall at that speed.
For X-Plane, you have to model the entire aircraft, hoping your data
are good, then test fly. If it stalls at Vso then you're very lucky. In
most case, it will take a long time to adjust the model so that it gets
closer and closer to reality.
In my opinion, if you want to test a model, learn about aerodynamics,
then X-Plane is superior as it lets you do a lot more things. E.g.: You
can adjust the tension of the springs between the rudder and the
tailwheel by giving a parameter that is: degree of deflection of one
pound of lateral pressure.
Anyway, a simulator model will never be entirely true to reality. As
Noel discovered our flaperons are very difficult to model. That is
because the added effect of the low pressure on the top of them, due to
the vicinity of the trailing edge of the wing, cannot be reproduced in
a simulator. That would require something called Computational Fluid
Dynamics (CFD) where each portion of air has its own model. It it
possible, but not in real-time that requires at least 12 frames per
second for simulation purpose.
What did I do for my model flaperons? I increased the lift coefficient
to something quite high and sat the stall angle of incidence to be 22
degrees.
Cheers,
Michel Verheughe
Norway
Kitfox 3 - Jabiru 2200
Do not archive
Message 3
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| Subject: | East Coast Kitfox Gathering! |
Just a reminder to all you Kitfoxers, the first East Coast Kitfox Gathering
is scheduled for October 13th & 14th! day one will be at First Flight and
day two at Campbell Airfield in Va.
Just wanted to send another reminder. Hope all can attend.
Ray
_________________________________________________________________
Its the Windows Live Hotmail you love on your phone!
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Message 4
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| Subject: | Re: East Coast Kitfox Gathering! |
I live just cross the Carolina Virginia State line but I don't
know where Campbell Airfield is. Can some one tell me?
GLENN HORNE
Kitfox Model II
Subject: Kitfox-List: East Coast Kitfox Gathering!
>
> Just a reminder to all you Kitfoxers, the first East Coast Kitfox
> Gathering is scheduled for October 13th & 14th! day one will be at First
> Flight and day two at Campbell Airfield in Va.
>
>
> Just wanted to send another reminder. Hope all can attend.
>
> Ray
>
> _________________________________________________________________
> It's the Windows LiveT Hotmail you love - on your phone!
> http://www.microsoft.com/windowsmobile/mobilehotmail/default.mspx?WT.mc_ID=MobileHMTagline2
>
>
>
Message 5
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| Subject: | Re: 3 leaf tail spring. Bolt size |
> I am replacing the single leaf tail spring with a 3 leaf. But I do not know the
size of the bolt that is installed. (then I need a longer bolt ) now. Think
it is a 5/16 bolt, but cant remember. Anybody that know the original size of
the bolt on my Kitfox 4.
Grir, I have a Classic 4 with one main leaf and one helper leaf. My fuselage bolt
goes through 2 spring leaves. It is a AN5-20 (5/16 X 2 inch). The rear bolt
goes through one leaf and the Mall tail wheel bracket, it is a AN7-10A (7/16
X 1 inch). The two smaller bolts that secure the tail spring clamp catch 2
leaves. They are AN3-10A (3/16 X 1 inch).
If you are installing 2 main leaves plus a helper leaf you probably should add
2 (1/4 inch) to each of the above AN dash numbers.
Now, did I help or confuse you?
--------
Tom Jones
Classic IV, Phase one
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=135828#135828
Message 6
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| Subject: | Re: East Coast Kitfox Gathering! |
Follow the this link to see the Campbell airfield on the Washington DC chart:
http://skyvector.com/#25-23-3-2715-2468
I was also hoping to get a group picture at the Wright Monument at 3pm. I'm entertaining
taking the group picture and making a few coffee mugs as a souvenir
for everyone who comes. Maybe a picture of your Kitfox on the other side?
> I live just cross the Carolina Virginia State line but I don't
> know where Campbell Airfield is. Can some one tell me?
--------
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=135831#135831
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