Today's Message Index:
----------------------
1. 09:19 AM - 3 axis control authority (M. Domenic Perez)
2. 10:28 AM - Re: 3 axis control authority (Bill Berle)
3. 10:53 AM - 3 questions on aileron authority (Bill Berle)
4. 11:07 AM - Re: 3 questions on aileron authority (william sullivan)
5. 11:20 AM - Re: 3 questions on aileron authority (Larry Cottrell)
6. 04:56 PM - Re: 3 questions on aileron authority (Richard Pike)
Message 1
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| Subject: | 3 axis control authority |
When I first got my Firestar II, my instructor test flew it first and
commented that my ailerons "were crap". I had bought the plane used and was
disappointed that I might have bought a poorly built one. However, simply
disassembling the joystick mixer, cleaning the metal-to-metal surfaces that
are in contact during control movements, lubricating and being careful not
to overtighten the nuts putting it back together "made all the difference in
the world", he said. So I never personally experienced the heavy aileron
problem on my own plane, I'm just relaying what the instructor thought,
before mixer maintenance and after. Bill Berle, something to think about on
your friend's Mk III if you haven't already.
Haven't contributed to the list or even flown for a while. Life can get
complicated.
M. Domenic Perez
FS II 503
Vaughn, NM
Message 2
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| Subject: | Re: 3 axis control authority |
M. Domenic thank you for this information. We will make sure everything is lubricated
and not over-tightened. I was informed that this particular Kolb had a
center stick and then was changed to dual sticks. Perhaps something got over-tightened
during that upgrade.
Bill Berle
www.ezflaphandle.com - safety & performance upgrade for light aircraft
www.grantstar.net - winning proposals for non-profit and for-profit entities
--------------------------------------------
On Wed, 5/31/17, M. Domenic Perez <perezmdomenic@plateautel.net> wrote:
Subject: Kolb-List: 3 axis control authority
To: kolb-list@matronics.com
Date: Wednesday, May 31, 2017, 9:19 AM
When I first got my
Firestar II, my instructor test flew it first and commented
that my ailerons were crap. I had bought the
plane used and was disappointed that I might have bought a
poorly built one. However, simply disassembling the joystick
mixer, cleaning the metal-to-metal surfaces that are in
contact during control movements, lubricating and being
careful not to overtighten the nuts putting it back together
made all the difference in the world, he said.
So I never personally experienced the heavy aileron problem
on my own plane, Im just relaying what the instructor
thought, before mixer maintenance and after. Bill Berle,
something to think about on your friends Mk III if
you havent already. Havent
contributed to the list or even flown for a while. Life can
get complicated.
M. Domenic
PerezFS II 503Vaughn, NM
Message 3
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| Subject: | 3 questions on aileron authority |
Last night I completed the structural repairs to the two wing ribs we bent on Saturday.
It was possible to replace the damaged upper rear tube "rib cap" sections,
without removing the rest of the rib form the spar. Internal sleeves were
fabricated to allow the replacement section to be spliced in structurally with
two rivets, yielding a continuous rib cap from leading to trailing edge. I'm
almost ready to recover the wingtip and am deciding whether to patch the aileron
fabric or recover the entire aileron.
I have a few questions I want to ask the experienced Kolb owners... Jimmy and I
are desperately trying to identify the root cause of the control problem we had.
1) Have any of you experienced a situation where the aileron controls have X amount
of friction (or control authority) in one direction, and 3X in the other
direction? What was the cause of this?
2) I located several photos online of Kolb Mark 3 aircraft that had no flaps. Did
the versions of the Mk/3 without flaps suffer from the same heavy aileron forces
as the versions with flaps?
3) The Kolb instructions/blueprints that I have seen (Firestar) show that you are
supposed to install the hinges with the hinge axis in the center of the gap
between the wing and aileron. They telly ou to put the hinge into a "V" shape
and i nstall them, as opposed to the hinges being "flat". This particular Mark
3 has the hinge axis (pin) not exactly in the center of the gap. Does anybody
know whether this would or would not make the ailerons more or less difficult?
Bill Berle
www.ezflaphandle.com - safety & performance upgrade for light aircraft
www.grantstar.net - winning proposals for non-profit and for-profit entities
--------------------------------------------
On Wed, 5/31/17, M. Domenic Perez <perezmdomenic@plateautel.net> wrote:
Subject: Kolb-List: 3 axis control authority
To: kolb-list@matronics.com
Date: Wednesday, May 31, 2017, 9:19 AM
When I first got my
Firestar II, my instructor test flew it first and commented
that my ailerons were crap. I had bought the
plane used and was disappointed that I might have bought a
poorly built one. However, simply disassembling the joystick
mixer, cleaning the metal-to-metal surfaces that are in
contact during control movements, lubricating and being
careful not to overtighten the nuts putting it back together
made all the difference in the world, he said.
So I never personally experienced the heavy aileron problem
on my own plane, Im just relaying what the instructor
thought, before mixer maintenance and after. Bill Berle,
something to think about on your friends Mk III if
you havent already. Havent
contributed to the list or even flown for a while. Life can
get complicated.
M. Domenic
PerezFS II 503Vaughn, NM
Message 4
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| Subject: | Re: 3 questions on aileron authority |
Bill- While you have the aircraft down on the ground, check for the resistance
right and left. Then disconnect pieces one at a time until you find the culprit.
Yes, I have seen things that move freely in one direction and not the other.
Disconnect the ailerons and see if it's a hinge doing it, too. It almost
sounds like something is binding by going "over center", and you are trying
to bend something to make it go back.
Bill Sullivan
Message 5
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| Subject: | Re: 3 questions on aileron authority |
Bill I would suggest that you first make sure that the conversion to
dual sticks was done correctly.
Larry
On Wed, May 31, 2017 at 12:06 PM, william sullivan
<williamtsullivan@att.net> wrote:
>
> Bill- While you have the aircraft down on the ground, check for the resistance
right and left. Then disconnect pieces one at a time until you find the culprit.
Yes, I have seen things that move freely in one direction and not the
other. Disconnect the ailerons and see if it's a hinge doing it, too. It almost
sounds like something is binding by going "over center", and you are trying
to bend something to make it go back.
>
> Bill Sullivan
>
>
--
The older I get, the less tolerant I am of those who are intolerant of others.
If you forward this email, or any part of it, please remove my email
address before sending.
Message 6
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| Subject: | Re: 3 questions on aileron authority |
Don't know if this will be any help but here is how the ailerons are supposed to be attached and aligned: http://oh2fly.net/oldpoops/Lexan%20rear%20enclosure.html
Note especially pages 19 & 23.
Also I reinforced the aileron pivots at the tip ends to keep everything aligned: http://oh2fly.net/oldpoops/pg8.htm
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough. Being forgiven is wonderful.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=469764#469764
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