Today's Message Index:
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1. 10:40 AM - Re: In Memoriam 2010 - Homer Kolb (Dennis Thate)
2. 10:51 AM - Re: Re: Need Help with 582 rudder trim (Pat Ladd)
3. 11:32 AM - Re: Need Help with 582 rudder trim (cspoke)
4. 12:50 PM - Re: Need Help with 582 rudder trim (Richard Pike)
5. 03:06 PM - Re: Re: Need Help with 582 rudder trim (Pat Ladd)
6. 03:16 PM - Re: Re: Need Help with 582 rudder trim (Pat Ladd)
7. 09:56 PM - Re: Re: Need Help with 582 rudder trim (Richard Girard)
Message 1
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Subject: | Re: In Memoriam 2010 - Homer Kolb |
kolbaircraft wrote:
> Thanks Dave
>
> Travis
> Kolb CO.
>
> ---
Travis,
What is the current address for the Kolb Aircraft ? [Question]
--------
Both optimists and pessimists contribute to our society. The optimist invents
the airplane and the pessimist the parachute. ~Gil Stern
Faith is believing what you know ain't so - Mark Twain
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=332653#332653
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Subject: | Re: Need Help with 582 rudder trim |
Hi Richard,
dont understand why you are so interested in being trimmed accurately in the
glide. As soon as you apply power it will be wrong. How much time do you
spend gliding?
Trim it accurately for cruise, surely.
Before you start fixing bits of tim to the rudder etc. try some draught
excluder. I have some which is designed with a flat piece and a tube.
Normally the flat fixes to a door and the tube fills the gap around a door
or window.
My Extra tended to roll left. I lowered the trailing edge of the left wing
to increase the angle of attack and get a bit more lift. A bit of draught
excluder on the rudder plus Johns patented stick grabber to compensate for
sitting to one side and she is fine.
Good luck
Pat
Message 3
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Subject: | Re: Need Help with 582 rudder trim |
Pat, I also dropped the left trailing edge on my Xtra. I am waiting for calmer
winds to start trimming for yaw. Could you give some more information on your
draught excluder? How did you attach it. Maybe some pictures? Thanks
--------
Craig Spoke
Mark 111 Xtra
VW Redrive
Lillian, AL
cspoke@gulftel.com
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Subject: | Re: Need Help with 582 rudder trim |
pj.ladd(at)btinternet.com wrote:
> Hi Richard,
> dont understand why you are so interested in being trimmed accurately in the
> glide. As soon as you apply power it will be wrong. How much time do you
> spend gliding?
>
> Trim it accurately for cruise, surely.
>
> Before you start fixing bits of tim to the rudder etc. try some draught
> excluder. I have some which is designed with a flat piece and a tube.
> Normally the flat fixes to a door and the tube fills the gap around a door
> or window.
> My Extra tended to roll left. I lowered the trailing edge of the left wing
> to increase the angle of attack and get a bit more lift. A bit of draught
> excluder on the rudder plus Johns patented stick grabber to compensate for
> sitting to one side and she is fine.
>
> Good luck
>
> Pat
It seems reasonable to me that before you trim the airplane properly for cruise,
you start off with an airplane that flies straight in the first place. Like
Jack said, you narrow your focus by discovering what is not the problem. Now that
I have an airplane that flies properly hands off, everything I do from now
on is related to cruise power settings, and I don't have to wonder if the basic
platform is whopperjawed. I like that.
Not sure what a draught excluder is, but the gap seal that goes on both the top
and bottom sides of the center section leaves no gaps. The only gap around the
doors is at the top of each door where the hinge leaves a little bit, approx
1/2" long by 1/8" wide, and I doubt that counts for much.
Richard Pike
MKIII N420P (420ldPoops)
PS: Non-Kolb related - does anybody else on the list play World of Tanks? If so,
contact me off list, maybe we can make a platoon.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=332674#332674
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Subject: | Re: Need Help with 582 rudder trim |
Not sure what a draught excluder is,>>
Sorry Richard,#
cultural difference. I don`t know what you call it but in the UK a draught
excluders function is to stop draughts, not on an airplane but around the
house, where doors and windows don`t fit tightly.
Sometimes it is a narrow strip of sticky backed foam. What I am referring to
is, in section, a flat piece of rubber about a sixteenth of an inch in
thickness and half an inch wide. One edge has a rubber tube about the
diameter of a drinking straw fixed to it. Now imagine that as a simple
extrusion available in rolls from which you can cut the length required and
you have it.
I hope that is clear????
It works as a trim when fixed to the trailing edge of control surfaces and
is almost un noticeable..
Cheers
Pat
Now that you know that I hope the rest of the explanation falls into place.
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Subject: | Re: Need Help with 582 rudder trim |
How did you attach it. Maybe some pictures? Thanks>>
Craig,
see my reply to Richard about the configuration.
The flat piece in stuck to the control surface so that the tube part is at
the trailing edge of the control.
I have it fixed to the rudder and for some reason which I now forget, to the
underside of the port elevator. As both sides of the elevator work in unison
I cant see the logic for that but it must have seeme dto work at some point.
I think the bungee stick grabber is the most useful part of the set up.
I am away from tonight for around a week. If I can take a pic. and work out
how to send it I will try on my return
Cheers
Pat
Message 7
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Subject: | Re: Need Help with 582 rudder trim |
Pat, you have independently discovered the drinking straw Gurney Flap AKA
the drinking stray wicker bill. Instead of forming tape around the straw
you've refined it by using a stick on rubber extrusion.
Rick Girard
On Fri, Mar 4, 2011 at 1:14 AM, Pat Ladd <pj.ladd@btinternet.com> wrote:
>
> How did you attach it. Maybe some pictures? Thanks>>
>
> Craig,
>
> see my reply to Richard about the configuration.
> The flat piece in stuck to the control surface so that the tube part is at
> the trailing edge of the control.
> I have it fixed to the rudder and for some reason which I now forget, to
> the underside of the port elevator. As both sides of the elevator work in
> unison I cant see the logic for that but it must have seeme dto work at some
> point.
>
> I think the bungee stick grabber is the most useful part of the set up.
> I am away from tonight for around a week. If I can take a pic. and work out
> how to send it I will try on my return
>
> Cheers
>
> Pat
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
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