Today's Message Index:
----------------------
1. 04:34 AM - Re: Still fighting--- (Richard Pike)
2. 06:37 AM - Re: Still fighting--- (John Hauck)
3. 07:39 AM - Re: Still fighting--- (jerb)
4. 08:29 AM - fighting it (john s. flannery)
5. 08:32 AM - Fuel Pressure Ghosts (boyd)
6. 08:34 AM - Re: First Flight (Robert Laird)
7. 09:29 AM - Re: Test - Getting Older?? (Bill Vincent)
8. 10:33 AM - Still fighting--- (frank & margie)
9. 11:39 AM - 3 topics (Edward Steuber)
10. 03:36 PM - Big Lar visit (Bob Dalton)
11. 04:08 PM - Re: Big Lar visit (ron wehba)
12. 05:55 PM - Ethanol (Larry Rice)
13. 09:56 PM - Free Stuff ! (Max Stanford)
Message 1
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| Subject: | Re: Still fighting--- |
--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
The prop does create a bias as you describe. Note the sides of the
fuselage just ahead of the prop, the gnats are plastered on the right
fuselage side, and the underside of the left flap, but not on the left
side of the fuselage, or the underside of the right flap.
Richard Pike
MKIII N420P (420ldPoops)
frank & margie wrote:
> Ref. the discussion on roll problems/rigging/etc., jerb wrote:
>
> Subject: Re: Kolb-List: still fighting
>
> --> Kolb-List message posted by: jerb <ulflyer@verizon.net
> <mailto:ulflyer@verizon.net>>
>
> Many different things can contribute to the flight characteristics
> your experiencing. Sounds like a rigging problem. In order to
> determine the likely cause it will be necessary to properly level the
> aircraft in the proper attitude to take correct meaningful
> measurements. This becomes a process of elimination. Refer to the
>
> ---------------------
> John/all,
> <snip>
> ---your prop is pretty close to the TE of your flaps---could the
> descending blade build up pressure above the flap, pushing it down
> slightly? Could the ascending blade be stronger on a Kolb, maybe
> resulting in a slight upward push on the left flap (or aileron)? Is
> there enough play in the flap linkage to allow movement? How close is
> the prop arc to the inboard end of the aileron? I don't know how to
> check for thrust differential on a pusher---the propwash isn't
> separated by the windscreen like it is on mine, and the cardboard
> trick obviously won't work. Wonder what smoke would show about the
> airflow around the prop? Just food for thought. Having been there, I
> know what you're going thru.
>
> Good luck.
>
> Frank Clyma
> Orange Park, FL
Message 2
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| Subject: | Re: Still fighting--- |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
How could this be true on a pusher? Especially with your
descending blade on the right?
Frank Clyma
Orange Park, FL
Decending blade may not be on the right, depending on what type engine
is powering the airplane and whether it is turning through a gear box
or belt drive. Rotax 2 strokes rotate opposite direction 4 strokes.
john h
Message 3
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| Subject: | Re: Still fighting--- |
--> Kolb-List message posted by: jerb <ulflyer@verizon.net>
Richard,
That's because there are a bunch more right wings gnats than there
are left wings.
jerb
At 06:28 AM 6/25/2006, you wrote:
>--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
>
>The prop does create a bias as you describe. Note the sides of the
>fuselage just ahead of the prop, the gnats are plastered on the
>right fuselage side, and the underside of the left flap, but not on
>the left side of the fuselage, or the underside of the right flap.
>
>Richard Pike
>MKIII N420P (420ldPoops)
>
>frank & margie wrote:
>>Ref. the discussion on roll problems/rigging/etc., jerb wrote:
>>
>>Subject: Re: Kolb-List: still fighting
>>
>>--> Kolb-List message posted by: jerb <ulflyer@verizon.net
>><mailto:ulflyer@verizon.net>>
>>
>>Many different things can contribute to the flight characteristics
>>your experiencing. Sounds like a rigging problem. In order to
>>determine the likely cause it will be necessary to properly level the
>>aircraft in the proper attitude to take correct meaningful
>>measurements. This becomes a process of elimination. Refer to the
>>
>>---------------------
>>John/all,
>> <snip>
>>---your prop is pretty close to the TE of your flaps---could the
>>descending blade build up pressure above the flap, pushing it down
>>slightly? Could the ascending blade be stronger on a Kolb, maybe
>>resulting in a slight upward push on the left flap (or
>>aileron)? Is there enough play in the flap linkage to allow
>>movement? How close is the prop arc to the inboard end of the
>>aileron? I don't know how to check for thrust differential on a
>>pusher---the propwash isn't separated by the windscreen like it is
>>on mine, and the cardboard trick obviously won't work. Wonder what
>>smoke would show about the airflow around the prop? Just food for
>>thought. Having been there, I know what you're going thru.
>>
>>Good luck.
>>
>>Frank Clyma
>>Orange Park, FL
>
>
Message 4
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I flew the Kolb this morning with the 12" bent aluminum trim tab
duct-taped on right aileron. Minimal applications of stick and rudder
pressure used on takeoff, during power changes, banks and reduced power
landing at Truth or Consequences airport. Straight, mostly, and level,
mostly, with improved indicated airspeed at throttle settings used
previously in this prolonged tussle. Pretty close to where I think it
should be now, and am relieved and amazed not to have to use great
pressure on the stick. Almost back to the three-fingers days.
Thanks to list members for so many suggestions. Will be back for more of
your help I am sure, trying to improve this mistreated machine.
jsf
jsf
Message 5
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| Subject: | Fuel Pressure Ghosts |
Ok I have been thinking about this thread and this is what I have come
up
with=85..
If you want to be able to test the fuel system for restrictions in the
engine driven or elect or both pumps=85 strainers in the bottom of the
tank
etc=85... disconnect the hose from the outlet of the pump or pumps if
ran in
series. And install a new one that will reach the floor a clear
hose
would be nice in helping to see what is happening. It would be real
easy
if using an electric pump=85. Just turn it on and let fuel run into a
fuel
can sitting on the floor. Then turn the pump off and see if the fuel
continues to pass through the hose=85 it should continue to siphon out
if the
fuel can on the floor is lower than the one in the plane. Next, time
how
long it takes to siphon out a gallon of gas=85 if it will keep up with
your
fuel burn while siphoning it should surely keep up with 1 or both pumps
running. If you don=92t have an elect pump you should be able to get
the gas
flowing by turning the prop over by hand, make sure the hose remains
out
of the prop disk. Or I suppose you could , if using a clear hose, just
suck on it. If the siphoning speed wont keep up with your engine fuel
burn,,, you might want to investigate where the restrictions might be.
Make sure you get all the air out of the line while making this test as
an
air bubble will partially or totally restrict the flow. If while
running
this test there is a steady line of air bubbles=85it may indicate a leak
in
the fuel delivery system.
Ok a bit more technical=85 the difference in pressure in fuel levels
is
just under =BD psi per foot=85. So if the level of gas in the plane is
3 ft
higher than the end of the siphon hose=85 there should be just under 1
=BD
psi difference in the levels=85. So that would tell you what kind of
fuel
flow you would have through the system at that pressure=85 assuming
that all
the components were laid out on a flat bench.
Any questions feel free to respond on or off list.
Do archive.
Boyd
Message 6
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| Subject: | Re: First Flight |
--> Kolb-List message posted by: "Robert Laird" <rlaird@cavediver.com>
S'ok, Pat, you can say "buggers"... most Americans don't understand
it*, anyway. :-)
On 6/24/06, pat ladd <pj.ladd@btinternet.com> wrote:
> told me that we are out to lunch tomorrow so that more or less b--gg---s up
* I mean, we know what it means, but it doesn't have that same raw
feel that it does to you Brits.
Message 7
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| Subject: | Re: Test - Getting Older?? |
Sorry Possum, could not hear a thing....must be from working 37 years in
a metal fabricating shop with the sand blaster near me.
P.S. My wife could hear the noise.
Bill Vincent
Firestar II
Upper Peninsula of Michigan
Do Not Archive
----- Original Message -----
From: possums
To: kolb-list@matronics.com
Sent: Saturday, June 24, 2006 8:49 PM
Subject: Kolb-List: Test - Getting Older??
This is great - Go to here
http://www.fork.com/ringtones.php
Press "Mosquito Tones"
Keep pressing it till you get
the "preview screen". Turn up the sound.
Press it twice till it goes off.
You will probably be able to hear it?
But depending on how old you are - maybe not.
It will drive anyone under 14 years old crazy.
Even in the next room while you just barely notice it.
Now remember - I've got 1,800+ hrs. underneath a 2 cycle.
So I can hear it - but it doesn't bother me at all.
How about you guys??
Kolb related - hearing loss test - age - sport pilot - No
UK related - yes Pat.
A technology using ultra-high frequency sound to drive teenage
loiterers away from shopping centers in the U.K. has been hijacked by
tech-savvy teens to create an inaudible cell phone ring tone. Students
are employing the technology to surreptitiously use mobile phones in
class by creating ring tones that most adults cannot hear.
Do not archive
Message 8
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| Subject: | Still fighting--- |
jerb wrote:
Frank, A Kolb if it has been built straight or any properly design
aircraft for that matter, shouldn't need any major trim tabs, you may
have masked the symptom but you never determined or corrected the root
cause.
Some thing major is in play with this guys airplane based upon his
comments.
jerb
-----------------------
jer,
I think you're right on both counts. The common use of an offset
bushing, however, does indicate something related especially to Kolbs.
It may be mostly weight offset to one side when flown solo, as John H
points out. Mine may be related to the distance from the prop to the
windscreen, and the way the windscreen splits the propwash. Or I may
have something else going on that we never found. As John also said, we
never stop learning. And to some extent, every plane is just slightly
different---even 2 supposedly identical Mark 3's are probably just a
little different.
jer, would you contact me off-list? I have a totally non-Kolb item
I'd like to get your input on.
Frank Clyma
Message 9
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John,
Interesting about the problems with the certified fuel
pumps.......only kidding about the "know it all "stuff....that's my wife
!
Thin skinned and humbled Ed in Western NY
Message 10
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Hello all,
Had a visit from "Big Lar" this afternoon on his way through northern
California. We had a quick lunch and off he headed on one of his "Traveling
Lar" photo expeditions. I took this picture as he was turning off Interstate
5 into Lathrop, CA.
Bob Dalton
do not archive
Message 11
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| Subject: | Re: Big Lar visit |
AH!! same old rig he had when he was thru texas, wonder how many miles
he has on it???
----- Original Message -----
From: Bob Dalton
To: kolb-list@matronics.com
Sent: Sunday, June 25, 2006 5:33 PM
Subject: Kolb-List: Big Lar visit
Hello all,
Had a visit from "Big Lar" this afternoon on his way through northern
California. We had a quick lunch and off he headed on one of his
"Traveling Lar" photo expeditions. I took this picture as he was turning
off Interstate 5 into Lathrop, CA.
Bob Dalton
do not archive
Message 12
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--> Kolb-List message posted by: Larry Rice <rice@iapdatacom.net>
I recall something about people in Brazil using synthetic oil in 2
strokes when burning gas with ethanol....
Larry the micro mong guy
--
Message 13
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--> Kolb-List message posted by: "Max Stanford" <maxstanford77@yahoo.com>
I would like to thank everyone for signing my email up for lots of free stuff.
Thanks for the free meds BigLar, but thats really not my thing.
Thanks for the thought guys, but if next time you all could sign me up for some
free Ultralight or Challenger realated offers I would be greatful.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=43049#43049
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