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bruce20(at)bellsouth.net
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 Posted: Sat May 27, 2006 6:40 am Post subject: Kolb Mark III |
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Has anyone had with the Mark III Classic turning to the right? Left turns
seem normal, but try to turn back right from a left turn almost requires two
hands. From level flight not to bad, but still harder than left turn. On
ground everything feels and looks normal. Thanks
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slyck(at)frontiernet.net
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| Posted: Sat May 27, 2006 7:54 am Post subject: Kolb Mark III |
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Are you trimmed out for zero pressure, straight and level?
I also had a heavier left wing (which can be partially attributable
to sitting on that side) until I stuck a trim tab on my right aileron.
Even though it flies properly now I still consider it a stopgap
measure. My first attempt at correction will be to tweak the
tailfeathers
a little to induce some right roll.
After that I'm going to drill new holes in my spar attach tabs above the
originals to decrease the angle of incidence. If I still need
any lift differential I'll make the hole centers slightly different to
decrease
the right wing a little more than the left.
BTW, on my MkIIIc, largely due to having considerably less hp than
a 912 version, I have no nose over problems at full throttle (solo)
unless the wheels are chocked. According to my prop calc
program I'm getting 58 hp during lift off and early climb/ 4700 rpm
At WOT/level flight I read about 5100 rpm which translates to about
62 hp. I could get a little more out of it with a finer pitch but
I like the economy range as it is.
-BB, one liter suzuki, 65" powerfin, 45+ hours.
tomorrow looks like a good day here in the NE.
On 27, May 2006, at 10:38 AM, Bruce Chaisson wrote:
| Quote: |
Has anyone had with the Mark III Classic turning to the right? Left
turns
seem normal, but try to turn back right from a left turn almost
requires two
hands. From level flight not to bad, but still harder than left turn.
On
ground everything feels and looks normal. Thanks
|
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http://www.matronics.com/Navigator?Kolb-List |
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jbhart(at)onlyinternet.ne
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| Posted: Sat May 27, 2006 8:07 am Post subject: Kolb Mark III |
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At 09:38 AM 5/27/06 -0500, you wrote:
| Quote: |
Has anyone had (trouble?) with the Mark III Classic turning to the right? Left turns
seem normal, but try to turn back right from a left turn almost requires two
hands. From level flight not to bad, but still harder than left turn. On
ground everything feels and looks normal. Thanks
|
Bruce,
Do you have a ball slip indicator? It sounds like you could have a combined
yaw and Power-Factor problem. If the propeller is catching more air on the
up swing as apposed to the down swing during cruise attitude you have a
P-Factor problem. You should solve this problem first and then attack the
yaw problem with a tab on the rudder.
An explanation of how to correct P-Factor can be found on:
http://www.thirdshift.com/jack/firefly/firefly56.html
In my case with the FireFly and the Victor 1+, I was able to correct the yaw
problem by rotating the drive reduction unit. But in your case, I believe
you will have to use a tab on the rudder.
Jack B. Hart FF004
Winchester, IN
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dhkey(at)msn.com
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| Posted: Sat May 27, 2006 10:52 am Post subject: Kolb Mark III |
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I had a problem with mine wanting to go left, as I remember I lowered the
left flap or raised the right flap a little I don't remember which and that
worked.
| Quote: | From: Bruce Chaisson <bruce20(at)bellsouth.net>
Reply-To: kolb-list(at)matronics.com
To: kolb-list(at)matronics.com
Subject: Kolb Mark III
Date: Sat, 27 May 2006 09:38:54 -0500
Has anyone had with the Mark III Classic turning to the right? Left
turns
seem normal, but try to turn back right from a left turn almost requires
two
hands. From level flight not to bad, but still harder than left turn. On
ground everything feels and looks normal. Thanks
|
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http://www.matronics.com/Navigator?Kolb-List |
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Sat May 27, 2006 2:33 pm Post subject: Kolb Mark III |
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Kolb ailerons tend to be a bit on the heavy side anyway, here is a mod
that makes them much lighter.
http://www.bcchapel.org/pages/0003/pg7.htm
Have flown it this way for years and love it. No loss of aileron authority.
Richard Pike
MKIII N420P (420ldPoops)
Bruce Chaisson wrote:
| Quote: |
Has anyone had with the Mark III Classic turning to the right? Left turns
seem normal, but try to turn back right from a left turn almost requires two
hands. From level flight not to bad, but still harder than left turn. On
ground everything feels and looks normal. Thanks
|
| | - The Matronics Kolb-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?Kolb-List |
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_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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