Today's Message Index:
----------------------
1. 02:58 AM - Re: Kolbd deatil photos (racerjerry)
2. 04:29 AM - Re: Kolbd deatil photos (Ducati SS)
3. 07:27 AM - Re: Kolb detail photos (now rudder cables) (Stuart Harner)
4. 07:45 AM - Re: Re: Kolb detail photos (now rudder cables) (John Hauck)
5. 09:09 AM - Re: Kolb detail photos (now rudder cables) (Ducati SS)
6. 09:45 AM - Re: Kolb MK lll (dany88)
7. 10:11 AM - Re: Re: Kolb MK lll (william sullivan)
8. 11:38 AM - Re: Re: Kolb detail photos (now rudder cables) (Martin Koxxy)
9. 11:58 AM - Re: Re: Kolb detail photos (now rudder cables) (Stuart Harner)
10. 12:46 PM - Re: Re: Kolb MK lll (John Hauck)
11. 12:55 PM - Re: Re: Kolb detail photos (now rudder cables) (John Hauck)
12. 01:28 PM - Re: Re: Kolb detail photos (now rudder cables) (Stuart Harner)
13. 01:37 PM - Re: Re: Kolb detail photos (now rudder cables) (John Hauck)
14. 03:10 PM - Re: Kolb MK lll (Richard Pike)
15. 04:00 PM - Re: Re: Kolb detail photos (now rudder cables) (Jack B. Hart)
16. 04:55 PM - Re: Re: Kolb MK lll (Dennis Rowe)
Message 1
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| Subject: | Re: Kolbd deatil photos |
It appears that you did a superb job here. I dont want to rain on anyones parade,
but it appears that when slack, the rudder cables are dragging on the elevator
horn causing a bare spot. 4130 tubing is more susceptible to corrosion than
mild steel. Things like this need to be touched up immediately before rust
sets in. If I were you, I would touch it up soon, wrap a couple of layers up
electrical tape over the area and add this spot to your inspection checklist
for regular monitoring. A short length of poly spiral electrical wrap might offer
more permanent protection.
Oh, and urethane fuel tubing works fine if you replace it at the beginning of each
flying season; otherwise even the good stuff falls apart after 2 - 3 years.
At least that was my experience 14 years ago. Tubing chemistry may have improved
since then, but I wouldnt bet MY ass on it.
--------
Jerry King
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417458#417458
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| Subject: | Re: Kolbd deatil photos |
Contact of the rudder cables and elevator bell crank is due more to the fact that
the bell crank moves up and down as it rotates. Look at the photo and you will
see the bell crank pivot bolts are forward of horn shaft rotation. Due to
the more or less hand built nature ( at Kolb ) of these airplanes and the resulting
variation in parts I can not say weather all Fireflies have this problem
but it appears many do. I was able to modify the rudder horn and make some other
adjustments to minimize contact ant they only touch at extreme up elevator.
I do not believe there is any contact during normal flight, the marks are from
taxing with full up elevator and steering. Tape will not work as it is not
the cable but the sleeves that scratch off the paint. Any sleeve added will only
reduce clearance. Though I did apply corrosion prevention during construction
I really do not have much of a corrosion issue, my garage is heated and dehumidified
and my hanger is completely enclosed with a concrete floor. I have considered
adding internal brackets using the existing forward fin and stab mounting
holes to support an internal bracket with pulleys. The pulleys would be
canted slightly off vertical and near the top of the boom tube to raise the
rudder cables.
A future experiment.
I worked for years as a professional motorcycle,
snowmobile mechanic, which was very fortunate as I was able to work extensively
with a number of 2 stroke brands including Rotax. I also worked with various
types of fuel line and understand the limitations of urethane, so I treat
it as a short term consumable.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417459#417459
Message 3
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Your clearance problem is exactly the way my firefly is. Only a problem at
full up elevator. Also caused by the compression sleeves, not the cable
itself.
At this point I don't see what can be done to change the design enough to
make it work better, but it needs to have something done to it.
Since the problem is the compression sleeves, and mostly the second one in
from the end, maybe a making a new cable with the second sleeve either moved
forward another 1/2" or positioned right up next to the first sleeve.
Either way, it would mean making all new cables which is something I am not
prepared to do just yet. Had I known about this before I made the cables, I
might have tried something else.
After looking at some other airplane cables I am not convinced that a double
sleeve is needed (I need to look in AC 43 to see what it says about the
subject), however I am not willing to go with just one sleeve on the rudder
cables without a pretty compelling reason.
When compressing the sleeves, a small ridge rolls up right at the outer
edges, at least with my compression tool anyway. What I plan on doing when
I take the tail feathers off for covering is to lightly file those sharp
ridges down a little so they do not dig into the elevator horn as much.
A small piece of heat shrink tubing on the cable will help ramp the cables
over the elevator horn when they make contact and will soften the contact.
There are downsides to this as it will not last forever and it will possibly
trap moisture and then hide it from inspection. So, one may be making a
more dangerous situation, as you can easily watch and touchup the elevator
horn when needed. I wonder if you can buy clear heat shrink tubing?
I have some heat shrink tape that is not very useful for electrical work,
but I may try to put some on the elevator horn. It can be replaced as
needed.
As a perfectionist, the other thing that bothers me is all the cables just
lay on the bottom of the tail boom, rubbing both the boom and the other
cables. In a perfect world they would all be riding on pulleys and not
touching anything else. To do this, even if I could figure out how, would
add quite a lot of complexity and some weight. Some have suggested perhaps
working a very thin sheet of some tough plastic material into the boom and
then a few rivets to hold it down. Again, hard to do and traps moisture.
Realistically, how many times do you have to move those cables to actually
cause any damage, and how many flight hours would that be? When I stop and
think about it, that perfectionist side of me needs to be tamed down a
little. :)
Stuart
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
Sent: Thursday, January 23, 2014 6:29 AM
Subject: Kolb-List: Re: Kolbd deatil photos
Contact of the rudder cables and elevator bell crank is due more to the fact
that the bell crank moves up and down as it rotates. Look at the photo and
you will see the bell crank pivot bolts are forward of horn shaft rotation.
Due to the more or less hand built nature ( at Kolb ) of these airplanes and
the resulting variation in parts I can not say weather all Fireflies have
this problem but it appears many do. I was able to modify the rudder horn
and make some other adjustments to minimize contact ant they only touch at
extreme up elevator. I do not believe there is any contact during normal
flight, the marks are from taxing with full up elevator and steering. Tape
will not work as it is not the cable but the sleeves that scratch off the
paint. Any sleeve added will only reduce clearance. Though I did apply
corrosion prevention during construction I really do not have much of a
corrosion issue, my garage is heated and dehumidified and my hanger is
completely enclosed with !
a concrete floor. I have considered adding internal brackets using the
existing forward fin and stab mounting holes to support an internal bracket
with pulleys. The pulleys would be canted slightly off vertical and near the
top of the boom tube to raise the rudder cables.
A future experiment
Message 4
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Kolbers:
There are a lot of Kolbs out there, all models, with clanging cables
smacking the tail boom when taxiing, rubbing against each other, etc. I do
not know of any that have failed for any reason in the last 30 years that I
have been building and flying Kolbs. My MKIII has over 3,200.0 hours on the
airframe, has all the symptoms of clanging cables, and is still safe and
flying strong.
My MKIII also had the problem of nicopress sleeve hitting rudder horn. I
filed the ridge off the offender when I built it in 1991. I don't cover up
nicopress sleeves. I want to be able to see them.
If something bothers you, fix it, and remember how many of these Kolbs are
out there flying and how long they have been flying.
john h
mkIII
Titus, Alabama Airframe: 3,229.5 hours Engine: 611.0 hours
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Stuart Harner
Sent: Thursday, January 23, 2014 9:27 AM
Subject: Kolb-List: Re: Kolb detail photos (now rudder cables)
Your clearance problem is exactly the way my firefly is. Only a problem at
full up elevator. Also caused by the compression sleeves, not the cable
itself.
At this point I don't see what can be done to change the design enough to
make it work better, but it needs to have something done to it.
Since the problem is the compression sleeves, and mostly the second one in
from the end, maybe a making a new cable with the second sleeve either moved
forward another 1/2" or positioned right up next to the first sleeve.
Either way, it would mean making all new cables which is something I am not
prepared to do just yet. Had I known about this before I made the cables, I
might have tried something else.
After looking at some other airplane cables I am not convinced that a double
sleeve is needed (I need to look in AC 43 to see what it says about the
subject), however I am not willing to go with just one sleeve on the rudder
cables without a pretty compelling reason.
When compressing the sleeves, a small ridge rolls up right at the outer
edges, at least with my compression tool anyway. What I plan on doing when
I take the tail feathers off for covering is to lightly file those sharp
ridges down a little so they do not dig into the elevator horn as much.
A small piece of heat shrink tubing on the cable will help ramp the cables
over the elevator horn when they make contact and will soften the contact.
There are downsides to this as it will not last forever and it will possibly
trap moisture and then hide it from inspection. So, one may be making a
more dangerous situation, as you can easily watch and touchup the elevator
horn when needed. I wonder if you can buy clear heat shrink tubing?
I have some heat shrink tape that is not very useful for electrical work,
but I may try to put some on the elevator horn. It can be replaced as
needed.
As a perfectionist, the other thing that bothers me is all the cables just
lay on the bottom of the tail boom, rubbing both the boom and the other
cables. In a perfect world they would all be riding on pulleys and not
touching anything else. To do this, even if I could figure out how, would
add quite a lot of complexity and some weight. Some have suggested perhaps
working a very thin sheet of some tough plastic material into the boom and
then a few rivets to hold it down. Again, hard to do and traps moisture.
Realistically, how many times do you have to move those cables to actually
cause any damage, and how many flight hours would that be? When I stop and
think about it, that perfectionist side of me needs to be tamed down a
little. :)
Stuart
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
Sent: Thursday, January 23, 2014 6:29 AM
Subject: Kolb-List: Re: Kolbd deatil photos
Contact of the rudder cables and elevator bell crank is due more to the fact
that the bell crank moves up and down as it rotates. Look at the photo and
you will see the bell crank pivot bolts are forward of horn shaft rotation.
Due to the more or less hand built nature ( at Kolb ) of these airplanes and
the resulting variation in parts I can not say weather all Fireflies have
this problem but it appears many do. I was able to modify the rudder horn
and make some other adjustments to minimize contact ant they only touch at
extreme up elevator. I do not believe there is any contact during normal
flight, the marks are from taxing with full up elevator and steering. Tape
will not work as it is not the cable but the sleeves that scratch off the
paint. Any sleeve added will only reduce clearance. Though I did apply
corrosion prevention during construction I really do not have much of a
corrosion issue, my garage is heated and dehumidified and my hanger is
completely enclosed with !
a concrete floor. I have considered adding internal brackets using the
existing forward fin and stab mounting holes to support an internal bracket
with pulleys. The pulleys would be canted slightly off vertical and near the
top of the boom tube to raise the rudder cables.
A future experiment
Message 5
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Yes you can buy clear heat shrink , I have some. Of course it needs to go on the
cable prior to pressing. Another possible solution I have considered is to remove
the bell crank, fabricate a curved support saddle for the bottom half of
the tube and using my shop press, press a small flat relief at the sleeve contact
site. I am considering going experimental with the plane and though I see
no safety issue I wonder if the FAA may have a problem with the interference.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417476#417476
Message 6
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Here are some pictures of my kolb firestar ... I'm happy :)
Yesterday brought home.
In the coming days I will show more photos
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417478#417478
Attachments:
http://forums.matronics.com//files/cel_4_016_202.jpg
http://forums.matronics.com//files/cel_4_018_117.jpg
http://forums.matronics.com//files/cel_4_014_444.jpg
http://forums.matronics.com//files/cel_4_012_160.jpg
Message 7
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- Very nice.- Enjoy!- What engine?=0A=0A---------
-------------------------
-------------------------
---- Bill Sullivan=0A---------------
-------------------------
----------------------- Winds
or Locks, Ct.=0A-------------------
-------------------------
-------------------- FS 447=0A=0A
=0A=0A=0A________________________________=0A From: dany88 <danielecafaro@al
ice.it>=0ATo: kolb-list@matronics.com =0ASent: Thursday, January 23, 2014 1
2:44 PM=0ASubject: Kolb-List: Re: Kolb MK lll=0A =0A=0A--> Kolb-List messag
e posted by: "dany88" <danielecafaro@alice.it>=0A=0AHere are some pictures
of my kolb firestar ... I'm happy :) =0AYesterday brought home.=0AIn the co
ming days I will show more photos=0A=0A=0A=0A=0ARead this topic online here
:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=417478#417478=0A=0A=0A
=0A=0AAttachments: =0A=0Ahttp://forums.matronics.com//files/cel_4_016_202.j
pg=0Ahttp://forums.matronics.com//files/cel_4_018_117.jpg=0Ahttp://forums.m
atronics.com//files/cel_4_014_444.jpg=0Ahttp://forums.matronics.com//files/
========================
Message 8
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| Subject: | Re: Kolb detail photos (now rudder cables) |
I am building an Earthstar eGull, just lurking here. Mark Beierle solved
the "chafing cable" issue by placing a "comb" on the forward face of the
boom, UHMW or teflon, 1/8" thick, with slits where the cables are supposed
to be. Simple, light weight, and should last a while (unless your angle
change is large).
On Thu, Jan 23, 2014 at 7:26 AM, Stuart Harner <stuart@harnerfarm.net>wrote:
>
> Your clearance problem is exactly the way my firefly is. Only a problem at
> full up elevator. Also caused by the compression sleeves, not the cable
> itself.
>
> At this point I don't see what can be done to change the design enough to
> make it work better, but it needs to have something done to it.
>
> Since the problem is the compression sleeves, and mostly the second one in
> from the end, maybe a making a new cable with the second sleeve either
> moved
> forward another 1/2" or positioned right up next to the first sleeve.
> Either way, it would mean making all new cables which is something I am not
> prepared to do just yet. Had I known about this before I made the cables,
> I
> might have tried something else.
>
> After looking at some other airplane cables I am not convinced that a
> double
> sleeve is needed (I need to look in AC 43 to see what it says about the
> subject), however I am not willing to go with just one sleeve on the rudder
> cables without a pretty compelling reason.
>
> When compressing the sleeves, a small ridge rolls up right at the outer
> edges, at least with my compression tool anyway. What I plan on doing when
> I take the tail feathers off for covering is to lightly file those sharp
> ridges down a little so they do not dig into the elevator horn as much.
>
> A small piece of heat shrink tubing on the cable will help ramp the cables
> over the elevator horn when they make contact and will soften the contact.
> There are downsides to this as it will not last forever and it will
> possibly
> trap moisture and then hide it from inspection. So, one may be making a
> more dangerous situation, as you can easily watch and touchup the elevator
> horn when needed. I wonder if you can buy clear heat shrink tubing?
>
> I have some heat shrink tape that is not very useful for electrical work,
> but I may try to put some on the elevator horn. It can be replaced as
> needed.
>
> As a perfectionist, the other thing that bothers me is all the cables just
> lay on the bottom of the tail boom, rubbing both the boom and the other
> cables. In a perfect world they would all be riding on pulleys and not
> touching anything else. To do this, even if I could figure out how, would
> add quite a lot of complexity and some weight. Some have suggested perhaps
> working a very thin sheet of some tough plastic material into the boom and
> then a few rivets to hold it down. Again, hard to do and traps moisture.
>
> Realistically, how many times do you have to move those cables to actually
> cause any damage, and how many flight hours would that be? When I stop and
> think about it, that perfectionist side of me needs to be tamed down a
> little. :)
>
> Stuart
>
>
> -----Original Message-----
> From: owner-kolb-list-server@matronics.com
> [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
> Sent: Thursday, January 23, 2014 6:29 AM
> To: kolb-list@matronics.com
> Subject: Kolb-List: Re: Kolbd deatil photos
>
>
> Contact of the rudder cables and elevator bell crank is due more to the
> fact
> that the bell crank moves up and down as it rotates. Look at the photo and
> you will see the bell crank pivot bolts are forward of horn shaft rotation.
> Due to the more or less hand built nature ( at Kolb ) of these airplanes
> and
> the resulting variation in parts I can not say weather all Fireflies have
> this problem but it appears many do. I was able to modify the rudder horn
> and make some other adjustments to minimize contact ant they only touch at
> extreme up elevator. I do not believe there is any contact during normal
> flight, the marks are from taxing with full up elevator and steering. Tape
> will not work as it is not the cable but the sleeves that scratch off the
> paint. Any sleeve added will only reduce clearance. Though I did apply
> corrosion prevention during construction I really do not have much of a
> corrosion issue, my garage is heated and dehumidified and my hanger is
> completely enclosed with !
> a concrete floor. I have considered adding internal brackets using the
> existing forward fin and stab mounting holes to support an internal
> bracket
> with pulleys. The pulleys would be canted slightly off vertical and near
> the
> top of the boom tube to raise the rudder cables.
> A future experiment
>
>
Message 9
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Thanks John, that is the kind of feedback I need to keep from going
overboard.
Having never been around a Kolb of any version before, my only point of
reference is the certified stuff I used to fly, and I know that even there,
sometimes perfect is still way beyond safe and reasonable.
I think that there has to be a merging of good enough, craftsmanship and
perfection. :)
Stuart
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of John Hauck
Sent: Thursday, January 23, 2014 9:45 AM
Subject: RE: Kolb-List: Re: Kolb detail photos (now rudder cables)
Kolbers:
There are a lot of Kolbs out there, all models, with clanging cables
smacking the tail boom when taxiing, rubbing against each other, etc. I do
not know of any that have failed for any reason in the last 30 years that I
have been building and flying Kolbs. My MKIII has over 3,200.0 hours on the
airframe, has all the symptoms of clanging cables, and is still safe and
flying strong.
My MKIII also had the problem of nicopress sleeve hitting rudder horn. I
filed the ridge off the offender when I built it in 1991. I don't cover up
nicopress sleeves. I want to be able to see them.
If something bothers you, fix it, and remember how many of these Kolbs are
out there flying and how long they have been flying.
john h
mkIII
Titus, Alabama Airframe: 3,229.5 hours Engine: 611.0 hours
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Stuart Harner
Sent: Thursday, January 23, 2014 9:27 AM
Subject: Kolb-List: Re: Kolb detail photos (now rudder cables)
Your clearance problem is exactly the way my firefly is. Only a problem at
full up elevator. Also caused by the compression sleeves, not the cable
itself.
At this point I don't see what can be done to change the design enough to
make it work better, but it needs to have something done to it.
Since the problem is the compression sleeves, and mostly the second one in
from the end, maybe a making a new cable with the second sleeve either moved
forward another 1/2" or positioned right up next to the first sleeve.
Either way, it would mean making all new cables which is something I am not
prepared to do just yet. Had I known about this before I made the cables, I
might have tried something else.
After looking at some other airplane cables I am not convinced that a double
sleeve is needed (I need to look in AC 43 to see what it says about the
subject), however I am not willing to go with just one sleeve on the rudder
cables without a pretty compelling reason.
When compressing the sleeves, a small ridge rolls up right at the outer
edges, at least with my compression tool anyway. What I plan on doing when
I take the tail feathers off for covering is to lightly file those sharp
ridges down a little so they do not dig into the elevator horn as much.
A small piece of heat shrink tubing on the cable will help ramp the cables
over the elevator horn when they make contact and will soften the contact.
There are downsides to this as it will not last forever and it will possibly
trap moisture and then hide it from inspection. So, one may be making a
more dangerous situation, as you can easily watch and touchup the elevator
horn when needed. I wonder if you can buy clear heat shrink tubing?
I have some heat shrink tape that is not very useful for electrical work,
but I may try to put some on the elevator horn. It can be replaced as
needed.
As a perfectionist, the other thing that bothers me is all the cables just
lay on the bottom of the tail boom, rubbing both the boom and the other
cables. In a perfect world they would all be riding on pulleys and not
touching anything else. To do this, even if I could figure out how, would
add quite a lot of complexity and some weight. Some have suggested perhaps
working a very thin sheet of some tough plastic material into the boom and
then a few rivets to hold it down. Again, hard to do and traps moisture.
Realistically, how many times do you have to move those cables to actually
cause any damage, and how many flight hours would that be? When I stop and
think about it, that perfectionist side of me needs to be tamed down a
little. :)
Stuart
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
Sent: Thursday, January 23, 2014 6:29 AM
Subject: Kolb-List: Re: Kolbd deatil photos
Contact of the rudder cables and elevator bell crank is due more to the fact
that the bell crank moves up and down as it rotates. Look at the photo and
you will see the bell crank pivot bolts are forward of horn shaft rotation.
Due to the more or less hand built nature ( at Kolb ) of these airplanes and
the resulting variation in parts I can not say weather all Fireflies have
this problem but it appears many do. I was able to modify the rudder horn
and make some other adjustments to minimize contact ant they only touch at
extreme up elevator. I do not believe there is any contact during normal
flight, the marks are from taxing with full up elevator and steering. Tape
will not work as it is not the cable but the sleeves that scratch off the
paint. Any sleeve added will only reduce clearance. Though I did apply
corrosion prevention during construction I really do not have much of a
corrosion issue, my garage is heated and dehumidified and my hanger is
completely enclosed with !
a concrete floor. I have considered adding internal brackets using the
existing forward fin and stab mounting holes to support an internal bracket
with pulleys. The pulleys would be canted slightly off vertical and near the
top of the boom tube to raise the rudder cables.
A future experiment
Message 10
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Looks like you are on your way. Got a little work to do, but should make a
good flying airplane. I built one in 1986, an original Firestar.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of dany88
Sent: Thursday, January 23, 2014 11:45 AM
Subject: Kolb-List: Re: Kolb MK lll
Here are some pictures of my kolb firestar ... I'm happy :) Yesterday
brought home.
In the coming days I will show more photos
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417478#417478
Attachments:
http://forums.matronics.com//files/cel_4_016_202.jpg
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Message 11
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Maybe I don't understand the problem you are having. Did you run out of
space/clearance between the rudder horn and the inside of the tail boom?
Did you speak to Kolb Aircraft Company to see if this was a production
problem or make a onetime screw up?
Everything produced at Kolb is welded in jigs.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
Sent: Thursday, January 23, 2014 11:09 AM
Subject: Kolb-List: Re: Kolb detail photos (now rudder cables)
Yes you can buy clear heat shrink , I have some. Of course it needs to go on
the cable prior to pressing. Another possible solution I have considered is
to remove the bell crank, fabricate a curved support saddle for the bottom
half of the tube and using my shop press, press a small flat relief at the
sleeve contact site. I am considering going experimental with the plane and
though I see no safety issue I wonder if the FAA may have a problem with
the interference.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417476#417476
Message 12
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Mine is a quick build, so all of those parts were installed by the factory.
All I did was make and install the cables.
If the rudder horn is moved up, then the cables would hit the top of the
tail boom, all of the time. The only time the cables touch the elevator
horn is when the elevator is at the uppermost deflection. Still the
nicopress sleeves scrape the paint off of the elevator horn, exposing bare
steel to rusting.
I think I can cure this with a little smoothing of the edges of the sleeves
and a small wear block on the elevator horn. I have to do some scrounging
but I think a very small piece of pvc pipe that will fit over the horn may
do the trick. Say an inch long for each cable location. Split the pipe so
that it can be pried on over the elevator horn. Maybe a small drop of
silicone to secure it. Check on it at preflight and remove and replace when
needed.
This idea just popped into my head, I need to go to the shop and see what I
can invent.
Stuart
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of John Hauck
Sent: Thursday, January 23, 2014 2:56 PM
Subject: RE: Kolb-List: Re: Kolb detail photos (now rudder cables)
Maybe I don't understand the problem you are having. Did you run out of
space/clearance between the rudder horn and the inside of the tail boom?
Did you speak to Kolb Aircraft Company to see if this was a production
problem or make a onetime screw up?
Everything produced at Kolb is welded in jigs.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
Sent: Thursday, January 23, 2014 11:09 AM
Subject: Kolb-List: Re: Kolb detail photos (now rudder cables)
Yes you can buy clear heat shrink , I have some. Of course it needs to go on
the cable prior to pressing. Another possible solution I have considered is
to remove the bell crank, fabricate a curved support saddle for the bottom
half of the tube and using my shop press, press a small flat relief at the
sleeve contact site. I am considering going experimental with the plane and
though I see no safety issue I wonder if the FAA may have a problem with
the interference.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417476#417476
Message 13
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| Subject: | Re: Kolb detail photos (now rudder cables) |
Recommend calling Bryan Melburn
at Kolb to see what he suggests.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Stuart Harner
Sent: Thursday, January 23, 2014 3:28 PM
Subject: RE: Kolb-List: Re: Kolb detail photos (now rudder cables)
Mine is a quick build, so all of those parts were installed by the factory.
All I did was make and install the cables.
If the rudder horn is moved up, then the cables would hit the top of the
tail boom, all of the time. The only time the cables touch the elevator
horn is when the elevator is at the uppermost deflection. Still the
nicopress sleeves scrape the paint off of the elevator horn, exposing bare
steel to rusting.
I think I can cure this with a little smoothing of the edges of the sleeves
and a small wear block on the elevator horn. I have to do some scrounging
but I think a very small piece of pvc pipe that will fit over the horn may
do the trick. Say an inch long for each cable location. Split the pipe so
that it can be pried on over the elevator horn. Maybe a small drop of
silicone to secure it. Check on it at preflight and remove and replace when
needed.
This idea just popped into my head, I need to go to the shop and see what I
can invent.
Stuart
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of John Hauck
Sent: Thursday, January 23, 2014 2:56 PM
Subject: RE: Kolb-List: Re: Kolb detail photos (now rudder cables)
Maybe I don't understand the problem you are having. Did you run out of
space/clearance between the rudder horn and the inside of the tail boom?
Did you speak to Kolb Aircraft Company to see if this was a production
problem or make a onetime screw up?
Everything produced at Kolb is welded in jigs.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Ducati SS
Sent: Thursday, January 23, 2014 11:09 AM
Subject: Kolb-List: Re: Kolb detail photos (now rudder cables)
Yes you can buy clear heat shrink , I have some. Of course it needs to go on
the cable prior to pressing. Another possible solution I have considered is
to remove the bell crank, fabricate a curved support saddle for the bottom
half of the tube and using my shop press, press a small flat relief at the
sleeve contact site. I am considering going experimental with the plane and
though I see no safety issue I wonder if the FAA may have a problem with
the interference.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417476#417476
Message 14
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dany88 wrote:
> Here are some pictures of my kolb firestar ... I'm happy :)
> Yesterday brought home.
> In the coming days I will show more photos
For future planning - it is considered good manners and a courtesy to reduce the
size of the pictures to properly fit the page.
Just saying.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
My soul shall be joyful in the LORD; It shall rejoice in His salvation. Psalm 35:9
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=417508#417508
Message 15
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| Subject: | Re: Kolb detail photos (now rudder cables) |
At 09:08 AM 1/23/2014 -0800, you wrote:
>
>
......................... I am considering going experimental with the plane
and though I see no safety issue I wonder if the FAA may have a problem
with the interference.
>
>
Nice looking FireFly.
If you plan to fly it as an ultralight vehicle (AC 103-7) the FAA has
nothing to do with checking anything.
The only thing the FAA can do is to ask you to provide proof that your
ultralight vehicle meets AC 103-7 requirements.
Jack B. Hart FF004
Winchester, IN
Message 16
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Congratulations!
Do not archive
Dennis "Skid" Rowe
Mk3, 690L-70, Leechburg, PA
> On Jan 23, 2014, at 12:44 PM, "dany88" <danielecafaro@alice.it> wrote:
>
>
> Here are some pictures of my kolb firestar ... I'm happy :)
> Yesterday brought home.
> In the coming days I will show more photos
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=417478#417478
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/cel_4_016_202.jpg
> http://forums.matronics.com//files/cel_4_018_117.jpg
> http://forums.matronics.com//files/cel_4_014_444.jpg
> http://forums.matronics.com//files/cel_4_012_160.jpg
>
>
>
>
>
>
>
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