Today's Message Index:
----------------------
1. 05:53 AM - Re: My Mark III, not a crash/Forward Horizontal Stabilizer Attachm... (Denny Rowe)
2. 06:08 AM - Re: My Mark III, not a crash/Forward Horizontal Stabilizer Attachment (Denny Rowe)
3. 06:43 AM - Re: My Mark III, not a crash/Forward Horizontal Stabilizer Attachm... (N27SB@aol.com)
4. 09:05 AM - Re: My Mark III, not a crash (guyandjodi@bvillemn.net)
5. 01:07 PM - MkII gear legs (Charles Blackwell)
6. 01:59 PM - MkII gear legs (Charles Blackwell)
7. 02:37 PM - Re: MkII gear legs/MKII/MKIII Comparison (John Hauck)
8. 02:55 PM - Re: MkII gear legs/MKII/MKIII Comparison (John Hauck)
9. 03:01 PM - 912 in a Kolb.....in the UK...?? (Kirby Dennis Contr MDA/AL)
10. 03:10 PM - DO NOT ARCHIVE 1 MOUSE CLICK AWAY (b young)
11. 03:22 PM - Re: DO NOT ARCHIVE 1 MOUSE CLICK AWAY (Robert Laird)
12. 03:39 PM - Signature (Dave & Eve Pelletier)
13. 03:47 PM - Re:Forward Horizontal Stabilizer Attachment (Kolbdriver)
14. 08:07 PM - Re: Mark III Crash (roger lee)
15. 08:18 PM - Re: My Mark III, not a crash (roger lee)
16. 08:21 PM - Re: My Mark III, not a crash (roger lee)
17. 08:38 PM - Re: My Mark III, not a crash/Forward Horizontal Stabilizer Attachment (roger lee)
18. 08:50 PM - Re: Re:Forward Horizontal Stabilizer Attachment (roger lee)
19. 08:59 PM - Re: DO NOT ARCHIVE 1 MOUSE CLICK AWAY (Bob N.)
20. 09:57 PM - Re: MkII gear legs/MKII/MKIII Comparison (Ed Chmielewski)
21. 10:01 PM - Re: DO NOT ARCHIVE 1 MOUSE CLICK AWAY (Ed Chmielewski)
Message 1
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| Subject: | Re: My Mark III, not a crash/Forward Horizontal Stabilizer |
Attachm...
--> Kolb-List message posted by: "Denny Rowe" <rowedl@highstream.net>
>
> What kind of bike are you going to be riding to do the MX Challenge?
> ;-)
>
>
> Same Crappy one I had before, I mean really, You are about 15 years my
> Senior, I should give a handicap. But I suspect you could still whip my
> tail no
> matter what I rode. Thanks for the Lesson.
>
> Steve
> do not archive
>
> OK guys,
Kolbs and Motocross! Two of my three favorite activities.
This list just keeps getting better and better!
If we ever get together I would love to get in on the challenge. :-)
Denny
Message 2
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| Subject: | Re: My Mark III, not a crash/Forward Horizontal Stabilizer |
Attachment
--> Kolb-List message posted by: "Denny Rowe" <rowedl@highstream.net>
----- Original Message -----
From: "Richard & Martha Neilsen" <NeilsenRM05@comcast.net>
. Also the rear edge of the horizontal stabilizer doesn't move at
> all (up, down, forward, or backward) through the full travel of the
> elevator. I see washers on the bolt that holds the tail fold fittings.
> Seems
> like in the instructions I was told to put the washers as needed to put
> the
> elevator hinge right at the hinge point of the elevator fold/bellcrank to
> eliminate this movement. What am I missing?
>
> Rick Neilsen
> Redrive VW powered MKIIIc
>
Rick,
The instructions tell us to place the spacers to minimize stabilizer
movement and to make sure the front mounts are centered so no binding
occures on elevator deflection in either direction.
Yours is the exception if you get no up-down, fore-aft movement in your
stab, I have never seen one that did not have a little motion to it.
All the same, I hope you have a little wiggle room at your front HS attatch
fitting.
Denny Rowe, Mk-3 with a wiggle in its tail.
Message 3
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| Subject: | Re: My Mark III, not a crash/Forward Horizontal Stabilizer |
Attachm...
--> Kolb-List message posted by: N27SB@aol.com
In a message dated 11/18/05 8:09:15 AM Central Standard Time,
rowedl@highstream.net writes:
> >Seems
> >like in the instructions I was told to put the washers as needed to put
> >the
> >elevator hinge right at the hinge point of the elevator fold/bellcrank to
> >eliminate this movement. What am I missing?
> >
> >Rick Neilsen
>
Hi Rick, I was talking about the forward attach point of the Horizontal
Stabilizer. The rear points should be shimmed. Page 7 Rev 0 of my 1995 Firefly
plans show a clear detail. It reads:
"There may be some movement of the horizontal stabilizer back and forth as
the elevator is moved up and down. Make sure that the L-hinge on the stabilizer
does not touch the hinges on the fuselage tube. WE have seen some
installations where the hinges not only touch but actually are deflected with elevator
movement. THIS IS a very dangerous as the hinges could fatigue and crack with
enough such bending. There MUST be clearance on both sides as indicated. "
In my opinion the whole design of the tail attachment is ingenious. It allows
the tail to fold as well as allow for elevator movement in a very simple and
inspectable form. You may not be able to see any movement at the rear of the
stabilizer because the whole horizontal stabilizer and elevator floats on the
control horn.
Hope this helps,
Steve Boetto
Message 4
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| Subject: | Re: My Mark III, not a crash |
--> Kolb-List message posted by: guyandjodi@bvillemn.net
> It is kept slightly loose so you can fold the
> stabilizer up. This allows this to have some amount, ever so slight, of
> vibration as you fly. This caused, over time, metal fatigue on the "L"
> brackets. > ---------------------------------
Roger,
They sould not be slightly loose for folding they should be floating on
that bolt.
If you have the "L" brackets on the boom tube installed properly you would
have had to add several washers to each side of the "L" brackets mounted
to the horizontal stabilizer to tighten that bolt up. There should have
been at least a 1/4in gap on both sides of the horizontal stab brackets so
they could move (float) fore and aft as the elevator is moved up and down.
Even if you can't see the movement fore and aft, it's there, and if you
immobilize this connection by tightening up the bolt somethings gotta
give.
If you did have the gap in place for movement then please disregard this
post.
If you could please post pictures of the other horizontal stab mount.
Just my .02 worth.
Guy Swenson
3053B MKIII Xtra
>
>
Message 5
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--> Kolb-List message posted by: Charles Blackwell <wozani@optonline.net>
My best guess, measuring on my MkII and also consulting the drawings=85. Is
that the Firestar angle is definitely wrong for the MkII (I can send pics if
you like). It makes the tops of the wheels lean inwards. I would go with
something in the 30 degree angle range, which I measured on my plane. If
you load it up heavy maybe you=92d want something like 35 degrees to allow the
legs to flex a bit more and sit with the wheels still perpendicular to the
ground.
If in doubt, stick some 1 =BC=94 OD pipe in the sockets, or the old gear legs,
and measure the angle from them to a level held perpendicular to the ground.
Also, the MkII is very much like the MkIIIc in its design. I think the only
real difference is the 6=94 tubing replacing the 5=94, and the flaps, all done
to accommodate the higher horsepower engines.
Charlie, MKII in NJ
=93Ok, time for some more help. A good point was brought up about when I
replace the gear legs and axle assemblies on my Mk II that the angle be
correct for the wheels. The 1 1/4" gear legs are from the firestar and the
standard axle assemblies from Kolb are welded at too much of an angle
because the mk II sits low compared to the firestar. Travis at TNK said he
would weld whatever angle I wanted. What do I want?=94
Message 6
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--> Kolb-List message posted by: Charles Blackwell <wozani@optonline.net>
My best guess, measuring on my MkII and also consulting the drawings=85. Is
that the Firestar angle is definitely wrong for the MkII (I can send pics if
you like). It makes the tops of the wheels lean inwards. I would go with
something in the 28 degree angle range, which I measured on my plane. If
you load it up heavy maybe you=92d want something like 25 degrees to allow the
legs to flex a bit more and sit with the wheels still perpendicular to the
ground.
If in doubt, stick some 1 =BC=94 OD pipe in the sockets, or the old gear legs,
and measure the angle from them to a level held perpendicular to the ground.
Also, the MkII is very much like the MkIIIc in its design. I think the only
real difference is the 6=94 tubing replacing the 5=94, and the flaps, all done
to accommodate the higher horsepower engines.
Charlie, MKII in NJ
=93Ok, time for some more help. A good point was brought up about when I
replace the gear legs and axle assemblies on my Mk II that the angle be
correct for the wheels. The 1 1/4" gear legs are from the firestar and the
standard axle assemblies from Kolb are welded at too much of an angle
because the mk II sits low compared to the firestar. Travis at TNK said he
would weld whatever angle I wanted. What do I want?=94
Message 7
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| Subject: | Re: MkII gear legs/MKII/MKIII Comparison |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
the only
| real difference is the 6=94 tubing replacing the 5=94, and the
flaps, all done
| to accommodate the higher horsepower engines.
|
|
| Charlie, MKII in NJ
Charlie/All:
Dennis Souder can speak to the above much better than I can.
Please let me disagree with you a tad.
The MKII is very much more like the original Twinstar, the first two
place Homer Kolb kit. Basically, they enclosed a Twinstar to make a
MKII. Structurally, the MKII is a Twinstar. Dennis S can correct me
if I am wrong, please.
About the only similarity between the two is the enclosed side by side
cockpit, and the MKII is much smaller than the MKIII.
The MKIII is a super strong "new" fuselage, six inch spars and
tailboom, 10 rib wing sections, flaps, and does quite well with 582,
912 and 912S.
I don't have any experience with the MKII. Never flown one. Dennis S
and Dick Kuntzleman can certainly fill us in on that particular model.
As far as gear leg/axle sockets, I prefer to set them up to have a
good amount of positive camber. I think that makes the aircraft look
better, fresher, than a Kolb sitting there in the grass or tarmac with
a lot of negative camber, tired and worn looking. Does it handle any
better on the ground. I don't know. On grass, doesn't matter. On
pavement it might, but I have never flown a Kolb with a lot of
negative camber on and off pavement.
john h
MKIII/912ULS
Titus, Alabama
Message 8
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| Subject: | Re: MkII gear legs/MKII/MKIII Comparison |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
| tailboom, 10 rib wing sections, flaps, and does quite well with 582,
| 912 and 912S.
Hi Gang:
Forgot to add in my last post, the MKIII also sported a new "folding
tail section" that took Dennis Souder and Homer Kolb a tremendous
amount of time to come up with. No one else in the UL/Lt Plane world
had anything like it.
Using the MKIII tail section, to include the new folding mechanism,
was the first Ferguson displayed at Sun and Fun 1991. Bill Ferguson's
Fergie was awarded Sun and Fun Grand Champion Light Plane, 1991, or it
may have been 1992. This alone was enough to irritate Homer Kolb and
the rest of the Kolb gang, after putting so much effort into designing
and developing.
john h
MKIII/912ULS
Titus, Alabama
Message 9
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| Subject: | 912 in a Kolb.....in the UK...?? |
--> Kolb-List message posted by: Kirby Dennis Contr MDA/AL <Dennis.Kirby@kirtland.af.mil>
Pat L, and KiwiMick -
My Mark-III Classic, with a 912UL and BRS weighs 560 lbs. (254 kg).
Does this fit your Microlight rules?
Dennis Kirby
N93DK, s/n 300
Cedar Crest, NM
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<span style'font-size:10.0pt;
font-family:Arial'>Pat L, and KiwiMick
<span style'font-size:10.0pt;
font-family:Arial'>
<span style'font-size:10.0pt;
font-family:Arial'>My Mark-III Classic, with a 912UL and BRS weighs 560 lbs.
(254 kg).
<span style'font-size:10.0pt;
font-family:Arial'>Does this fit your Microlight rules?
<span style'font-size:10.0pt;
font-family:Arial'>
<span style'font-size:10.0pt;
font-family:Arial'>Dennis Kirby
<span style'font-size:10.0pt;
font-family:Arial'>N93DK, s/n 300
<span style'font-size:10.0pt;
font-family:Arial'>Cedar Crest, NM
Message 10
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| Subject: | DO NOT ARCHIVE 1 MOUSE CLICK AWAY |
--> Kolb-List message posted by: "b young" <by0ung@brigham.net>
ok you stiff finger typers....... if you add a signature text by
following the instructions below then all you will have to do is click 1
button and the Do Not Archive will be added and typed for you........
the only other thing you may have to do is make sure the "insert signature
button" is visable on the toolbar. to do this if it is not allready there
you right click on the toolbar, click customize, find "insert signature"
click on it and hit the add button.
by following the instructions below you can create a signature ( you can
create several ) and if you put Do Not Archive in the edit text box, then
with one click on the mouse you are done. if you create more than one you
can click on the small pointer to the right of the insert signature icon ,
then you will be given multiple signatures to choose from.
boyd young
kolb mkIII c
brigham city ut.
ps matt if you figure this ought to be archived,, put a star in for one of
the letters so it wont be flagged.
-----------------------------------
THE FOLLOWING WAS COPPIED FROM THE HELP WINDOW.
To add a signature to outgoing messages
On the Tools menu, click Options, and then click the Signatures tab.
To create a signature, click New and then either enter text in the Edit
Signature box or
" SKIP THE REST AND HIT THE OK OR APPLY BUTTON "
click File, and then find the text or HTML file you'd like to use.
Select the Add signatures to all outgoing messages check box.
Notes
To use different signatures for different accounts, in the Signatures area,
select the signature, click Advanced, and then select the account you want
to use the signature with.
To use a signature on individual messages only, make sure to clear Add
signatures to all outgoing messages. When you compose the message, on the
Insert menu, point to Signatures, and then click the signature you want to
use.
Related Topics
Message 11
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| Subject: | Re: DO NOT ARCHIVE 1 MOUSE CLICK AWAY |
--> Kolb-List message posted by: Robert Laird <rlaird@cavediver.com>
It should be noted that the instructions so thoughtfully provided by
Boyd will only work with Microsoft Outlook, and then only with some
versions. (Most versions have the ability to add a signature, but the
method for accessing it may differ from his instructions.)
-- Robert
On 11/18/05, b young <by0ung@brigham.net> wrote:
> --> Kolb-List message posted by: "b young" <by0ung@brigham.net>
>
> ok you stiff finger typers....... if you add a signature text by
> following the instructions below then all you will have to do is click 1
> button and the Do Not Archive will be added and typed for you........
>
> the only other thing you may have to do is make sure the "insert signature
> button" is visable on the toolbar. to do this if it is not allready there
> you right click on the toolbar, click customize, find "insert signature"
> click on it and hit the add button.
>
> by following the instructions below you can create a signature ( you can
> create several ) and if you put Do Not Archive in the edit text box, then
> with one click on the mouse you are done. if you create more than one you
> can click on the small pointer to the right of the insert signature icon ,
> then you will be given multiple signatures to choose from.
>
> boyd young
> kolb mkIII c
> brigham city ut.
>
> ps matt if you figure this ought to be archived,, put a star in for one of
> the letters so it wont be flagged.
>
>
> -----------------------------------
> THE FOLLOWING WAS COPPIED FROM THE HELP WINDOW.
>
> To add a signature to outgoing messages
> On the Tools menu, click Options, and then click the Signatures tab.
> To create a signature, click New and then either enter text in the Edit
> Signature box or
>
> " SKIP THE REST AND HIT THE OK OR APPLY BUTTON "
>
>
> click File, and then find the text or HTML file you'd like to use.
> Select the Add signatures to all outgoing messages check box.
> Notes
> To use different signatures for different accounts, in the Signatures area,
> select the signature, click Advanced, and then select the account you want
> to use the signature with.
> To use a signature on individual messages only, make sure to clear Add
> signatures to all outgoing messages. When you compose the message, on the
> Insert menu, point to Signatures, and then click the signature you want to
> use.
> Related Topics
>
>
Message 12
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--> Kolb-List message posted by: "Dave & Eve Pelletier" <pelletier@cableone.net>
Hey Boyd, it works. Thanks.
AzDave Do Not Archive
Message 13
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| Subject: | Re:Forward Horizontal Stabilizer Attachment |
--> Kolb-List message posted by: "Kolbdriver" <Kolbdriver@bellsouth.net>
Steve,
I am with you Steve. Sheet 3 of my Mark III plans specifically notes to
leave room for the horizonal stab brackets to move fore and aft between the
tail tube mounted "L" brackets. It even tells you that it will fatigue and
break if it is not free to slide fore and aft on the AN3-10 bolt.
When I made my first flight in the Mark III on Feb. 24, 2001 Bruce, Norm,
and Danny came down to watch. Their inspection gave a thumbs up and after I
took it a couple trips around the pattern Norm made a circuit or two in it.
I think the temperature was in the 30s that day. While talking to them they
pointed out the mistake that some builders make by restricting the movement
at the forward horizonal stab. attachment.
My hat is off to Roger for making a sucessful landing with such an inflight
failure.
Steven Green
M3 400 hrs
> Hi John, help me out here, I am not concerned here about whether or not
the
> L bracket is covered or not. Although I am a Kolb Neophyte, I think that I
> understand the importance of having the joint free and moving. I am
concerned if
> people start boltin em up tight. or worse yet if the FAA mandates that it
be
> done based on the report of Roger's plane. The geometry of the elevator
horn
> moves in an arc and requires that the fore mounts can slide fore and aft.
If
> I am wrong here I will relinquish but I think I am on track.
>
> BTW, I'm ready for another Motocross Challenge, I've been practicing.
>
> Steve B
>
>
Message 14
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| Subject: | Re: Mark III Crash |
--> Kolb-List message posted by: roger lee <ssadiver1@yahoo.com>
Hi Gary,
Glad you enjoyed the dinner< but the company for me was better than the steak.
Hope to be back in the air next week.
Roger Lee
ghaley@wt.net wrote: --> Kolb-List message posted by: ghaley@wt.net
Rodger,
Glad to hear you got it down safely. I have wanted to thank you ever since
Monument Valley for the steak dinner but I misplaced your info. My wife and I
both enjoyed your company and hospitility. Thanks.
See you at Monument Valley 2006 if not before.
Gary & Beneta Haley
Dry Creek Airport (TS07)
Cypress, TX
Quoting roger lee :
> --> Kolb-List message posted by: roger lee
>
> That was me.
>
> Roger Lee
>
>
>
> ghaley@wt.net wrote: --> Kolb-List message posted by: ghaley@wt.net
>
> Was he at Monument Valley pulling a trailer with a four wheeler in back?
>
> Gary H.
>
>
> Quoting Kolbdriver :
>
> > --> Kolb-List message posted by: "Kolbdriver"
> >
> > Here's a little more info:
> >
> > N-number : N515AB
> > Aircraft Serial Number : 101553
> > Aircraft Manufacturer : LEE ROGER
> > Model : MARK III CLASSIC
> > Aircraft Year :
> > Owner Name : LEE ROGER W
> > Owner Address : 9531 E LOCHNAY LN
> > TUCSON, AZ, 85747-9283
> > Type of Owner : Partnership
> > Registration Date : 15-Sep-2005
> > Airworthiness Certificate Type : Not Specified
> >
> > Do not archive
> > ----- Original Message -----
> > From: "James Tripp"
> > To: "Kolb-List@Matronics.Com"
> > Subject: Kolb-List: Mark III Crash
> >
> >
> > > --> Kolb-List message posted by: "James Tripp"
> > >
> > > Hey Listers,
> > >
> > > Does anyone know anything about the Mark III crash over the weekend
> listed
> > > below? I'm not sure if this is even a Kolb or not as there could be more
> > > than one brand of Mark III.
> > >
> > >
> > > James Tripp
> > >
> > > FSII, Millbrook AL
> > >
> > >
> > > DO NOT ARCHIVE
> > >
> > >
> > > IDENTIFICATION
> > > Regis#: 515AB Make/Model: MARK Description: MARK III CLASSIC
> > > Date: 11/04/2005 Time: 1530
> > >
> > > Event Type: Accident Highest Injury: None Mid Air: N Missing: N
> > > Damage: Substantial
> > >
> > > LOCATION
> > > City: TUCSON State: AZ Country: US
> > >
> > > DESCRIPTION
> > > ACFT SUSTAINED SUBSTANTIAL DAMAGE DUE TO A POSSIBLE IN-FLIGHT STRUCTURAL
> > > FAILURE OF THE LEFT HORIZONTAL STABILIZER BRACKET WHILE ON DOWNWIND TO
> > > AIRPORT, TUCSON, AZ
> > >
> > >
> >
> >
> >
> >
> >
> >
> >
>
>
>
> ---------------------------------
>
>
>
>
>
>
>
---------------------------------
Message 15
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| Subject: | Re: My Mark III, not a crash |
--> Kolb-List message posted by: roger lee <ssadiver1@yahoo.com>
Hi Steve,
I checked my free play at this "L" bracket and had about 1/8" free play. I'm
replacing all my "L" brackets and will leave a little more room for free play.
I am also adding a second set of support cables to the leading edge of the horizontal
stabilizer and this will prevent this from flapping up if I should ever
have another type of failure. I hope never again. This should strengthen the
tail area and still let it move. I also took the "L" brakets from under the
fabric on the stabilizer so they can be inspected and replaced at 250 hrs.
Thanks for the advise,
Roger Lee
N27SB@aol.com wrote: --> Kolb-List message posted by: N27SB@aol.com
In a message dated 11/17/2005 12:34:04 A.M. Eastern Standard Time,
ssadiver1@yahoo.com writes:
What broke was the stainless "L" bracket on the front inside edge of the
horizontal stabilizer that allows the stabilizer to fold up. Looking at this I
can see why it failed. It is kept slightly loose so you can fold the
stabilizer up. This allows this to have some amount, ever so slight, of vibration
as
you fly. This caused, over time, metal fatigue on the "L" brackets. When I
checked the other side I used a magnifying glass and found another crack.
I would highly recommend that these stainless "L" brackets be changed at 250
hrs. and I would recommend putting in place a second horizontal stabilizer
wire forward of the first. I learned this from J. Hauck, but did not put mine
in place in time. My error. If I had put a second stabilizer wire in front of
the first (top and bottom) it would have prevented the horizontal stabilizer
from flying up. I am also going to add a second "L" bracket some where
between 8"-10" behind the other. My Kolb will then be double wire braced and and
have double "L" brackets. I never fold my plane up so I will also keep these
bolts at the "L" bracket tight which will help with the minute vibration.
To All, Question, I thought that since the trailing edge of the
horizontal stab. moved up and down slightly with elevator changes that it was
important to keep the forward joint at the L brackets loose. If you tightened it
as
suggested above would it not suffer from fatigue over time?
Steve Boetto
Firefly on Floats and Seabase Builder
---------------------------------
Message 16
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| Subject: | Re: My Mark III, not a crash |
--> Kolb-List message posted by: roger lee <ssadiver1@yahoo.com>
Thanks for the advise. I am replacing my cables and adding a second set of wires
like yours and using turnbuckles.
Roger Lee
possums@mindspring.com wrote: --> Kolb-List message posted by: possums@mindspring.com
Subject: Re: Kolb-List: My Mark III, not a crash
At 10:29 PM 11/16/2005, you wrote:
--> Kolb-List message posted by: roger lee
You can change those things to. You can even use swaged "machined" turnbuckles.
I used them on the rudders and elevator wires too - gives you some adjustment when
the wires stretch..
Not that there is anything wrong with the original equipment.
It's just cleaner and not that expensive to do it like it should be done.
http://www.mindspring.com/~possums/Modtail&swagedwires.jpg
Just to put the rumors to rest. It was my Mark III Classic, 912s with 545 hrs TT.
On take off and on downwind the passenger side horizontal stabilizer bracket broke
and the stabilizer went straight up and stayed there. It was a little hard
to control, but made a safe landing. Had to call NTSB because it was an in flight
control failure. What broke was the stainless "L" bracket on the front inside
edge of the horizontal stabilizer that allows the stabilizer to fold up.
Looking at this I can see why it failed. It is kept slightly loose so you can
fold the stabilizer up. This allows this to have some amount, ever so slight,
of vibration as you fly. This caused, over time, metal fatigue on the "L" brackets.
When I checked the other side I used a magnifying glass and found another
crack.
I would highly recommend that these stainless "L" brackets be changed at 250 hrs.
and I would recommend putting in place a second horizontal stabilizer wire
forward of the first. I learned this from J. Hauck, but did not put mine in place
in time. My error. If I had put a second stabilizer wire in front of the first
(top and bottom) it would have prevented the horizontal stabilizer from flying
up. I am also going to add a second "L" bracket some where between 8"-10"
behind the other. My Kolb will then be double wire braced and and have double
"L" brackets. I never fold my plane up so I will also keep these bolts at the
"L" bracket tight which will help with the minute vibration. I am also going
to use turn buckles like J. Hauck instead of adjustable tangs to dial in my cable
tightness.
The NTSB may have suggestions to Kolb, I'm not sure what they will do?
---------------------------------
Message 17
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| Subject: | Re: My Mark III, not a crash/Forward Horizontal Stabilizer |
Attachment
--> Kolb-List message posted by: roger lee <ssadiver1@yahoo.com>
HI John,
I removed the "L" brackets under the fabric and mounted them on the outside.
I have also replaced all the "L" brackets and added a second set of cables with
turnbuckles like your aircraft. I will also leave a little more free play in
the "L" bracket mounts so the horizontal stabilizer can move a little more freely.
Thanks for the tips.
Roger Lee
John Hauck <jhauck@elmore.rr.com> wrote: --> Kolb-List message posted by: "John
Hauck"
| The
| crack can and usually does occur under the fabric at the first
rivet.
|
| Steve Boetto
Hi Steve B/All:
Seems to me it is better to fix the bracket on the outside of the
fabric for proper preflight inspection. May be prettier under the
fabric, but not nearly as safe and functional.
I always attach the horizontal stabilizer forward bracket after I
cover and paint. However, all holes for bracket rivets are predrill
and fitted prior to covering.
john h
MKIII/912ULS
---------------------------------
Message 18
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| Subject: | Re:Forward Horizontal Stabilizer Attachment |
--> Kolb-List message posted by: roger lee <ssadiver1@yahoo.com>
Hi Steve,
My "L" brackets had about an 1/8" free play. I have changed all my brackets and
put them on the outside of the fabric on the horizontal stabilizer. I will
also give them some more free play. I am also adding a second set of support cables
on the front of the stabilizer and this will keep any failures from happening.
It will be strong, but it will have the free play that it needs.
Thanks for the help,
Roger Lee
Kolbdriver <Kolbdriver@bellsouth.net> wrote: --> Kolb-List message posted by:
"Kolbdriver"
Steve,
I am with you Steve. Sheet 3 of my Mark III plans specifically notes to
leave room for the horizonal stab brackets to move fore and aft between the
tail tube mounted "L" brackets. It even tells you that it will fatigue and
break if it is not free to slide fore and aft on the AN3-10 bolt.
When I made my first flight in the Mark III on Feb. 24, 2001 Bruce, Norm,
and Danny came down to watch. Their inspection gave a thumbs up and after I
took it a couple trips around the pattern Norm made a circuit or two in it.
I think the temperature was in the 30s that day. While talking to them they
pointed out the mistake that some builders make by restricting the movement
at the forward horizonal stab. attachment.
My hat is off to Roger for making a sucessful landing with such an inflight
failure.
Steven Green
M3 400 hrs
> Hi John, help me out here, I am not concerned here about whether or not
the
> L bracket is covered or not. Although I am a Kolb Neophyte, I think that I
> understand the importance of having the joint free and moving. I am
concerned if
> people start boltin em up tight. or worse yet if the FAA mandates that it
be
> done based on the report of Roger's plane. The geometry of the elevator
horn
> moves in an arc and requires that the fore mounts can slide fore and aft.
If
> I am wrong here I will relinquish but I think I am on track.
>
> BTW, I'm ready for another Motocross Challenge, I've been practicing.
>
> Steve B
>
>
---------------------------------
Message 19
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| Subject: | Re: DO NOT ARCHIVE 1 MOUSE CLICK AWAY |
--> Kolb-List message posted by: "Bob N." <ronoy@shentel.net>
For Macs 0S-10x: clk Mail>Preferences>Signatures...stick in whatever
you want. Done
regards,
Bob N.
ronoy@shentel.net
http://www.angelfire.com/rpg/ronoy
Message 20
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| Subject: | Re: MkII gear legs/MKII/MKIII Comparison |
--> Kolb-List message posted by: "Ed Chmielewski" <edchmiel@mindspring.com>
Hi John/all,
Beyond the aesthetic aspect, positive camber is used in taildraggers
(and to a lesser degree in tricycle gear) to aid in tracking during takeoff
and landing. Part of the idea is that when landing on one wheel, the gear
may deflect towards neutral and help keep the aircraft tracking straight.
With negative camber, when the gear splays further out, it will tend to drag
the aircraft away from the intended track.
Of course, it just looks better, too.
Ed in JXN (MI)
MkII/503
----- Original Message -----
From: "John Hauck" <jhauck@elmore.rr.com>
Subject: Re: Kolb-List: MkII gear legs/MKII/MKIII Comparison
> --> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
> Charlie/All:
> As far as gear leg/axle sockets, I prefer to set them up to have a
> good amount of positive camber. I think that makes the aircraft look
> better, fresher, than a Kolb sitting there in the grass or tarmac with
> a lot of negative camber, tired and worn looking. Does it handle any
> better on the ground. I don't know. On grass, doesn't matter. On
> pavement it might, but I have never flown a Kolb with a lot of
> negative camber on and off pavement.
>
> john h
> MKIII/912ULS
> Titus, Alabama
>
Message 21
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| Subject: | Re: DO NOT ARCHIVE 1 MOUSE CLICK AWAY |
--> Kolb-List message posted by: "Ed Chmielewski" <edchmiel@mindspring.com>
...or just post things that should be archived. That would work too,
wouldn't it?
)
Ed in JXN
MkII/503
Do not archive.
----- Original Message -----
From: "b young" <by0ung@brigham.net>
Subject: Kolb-List: DO NOT ARCHIVE 1 MOUSE CLICK AWAY
> --> Kolb-List message posted by: "b young" <by0ung@brigham.net>
>
> ok you stiff finger typers....... if you add a signature text by
> following the instructions below then all you will have to do is click 1
> button and the Do Not Archive will be added and typed for you........
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