Today's Message Index:
----------------------
1. 12:54 AM - Fw: Re: 5 in. Tubing - Reposting a old Post - Might be useful (jerb)
2. 03:47 AM - Re: MK3 parts (Denny Rowe)
3. 04:23 AM - Firestar project (william sullivan)
4. 05:11 AM - Firestar project (william sullivan)
5. 05:17 AM - Re: MK3 parts (John Hauck)
6. 06:04 AM - Re: MK3 parts (Aaron Gustafson)
7. 06:08 AM - Re: Re: Ultrastar Update (Jack B. Hart)
8. 07:14 AM - Re: Firestar project (Richard Girard)
9. 07:15 AM - Re: Firestar project (Richard Girard)
10. 07:28 AM - Re: Ultrastar Update (jb92563)
11. 12:32 PM - Re: Winter flight/ streamlined struts (Kirby Dennis Contr MDA/AL)
12. 01:00 PM - Re: Re: Winter flight/ streamlined struts (Mike Welch)
13. 01:15 PM - Re: Re: Winter flight/ streamlined struts (John Hauck)
14. 03:18 PM - Firestar project (william sullivan)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 5 in. Tubing - Reposting a old Post - Might be useful |
>Date: Wed, 05 Sep 2001 00:53:52 -0500
>To: kolb-list@matronics.com
>Subject: Re: Kolb-List: 5 in. Tubing
>Sender: owner-kolb-list-server@matronics.com
>X-Airmail-Delivered: Wed, 5 Sep 2001 00:54:02 -0500 (CDT)
>X-Airmail-Spooled: Wed, 5 Sep 2001 00:53:50 -0500 (CDT)
>
>
>If I recall right the source they used for the larger dia. tubing was an
>aluminum company in AZ. Yes it was irrigation pipe. I used to have the
>name of it and the source of the rivets they used. As for strength why
>change what has withstood the test of time and proven its self to
>work. Kolb are good airplanes, why mess with what isn't broke.
>
>At 10:35 PM 9/4/01 -0400, you wrote:
> >
> >Just wanted to make a couple comments about the 5 in. boom / spar tube that
> >comes up every so often, I believe the tube referred to as Irrigation pipe
> >is 6063-T8 and not T6 , I have a couple 10 ft. lengths and took a sample to
> >work for a simple tensile break test, sample was 5 in. O.D. X .050 in. wall
> >and it broke at between 37,000 and 41,000 PSI, not too bad for water pipe .
> > The cost of this pipe or tube is approx. $5.00 per ft. and it is sold in
> >20 ft. lengths , Wick's was mentioned as a source , they sell 5 in. X .065
> >wall for approx. $20.00 per ft. and weight is 30% more also,comes in 12ft.
> >length.
> > Am not an engineer but have always wondered why the Kolb
> attach point for
> >wing / strut was at the mid point of wing panel and not at 66% as most AC
> >are located, would appear that H section would allow spar to elongate under
> >heavy load , have also thought that H section could be extended to a length
> >of 36 or 40 in. and made into a truss to spread load over larger area.
> > Guess one can"t argue with success but after smashing some of this tube
> >to pieces , it still looks fragile .
> > Thanks for listening
> > Phil Lohiser
> > EAA 12873
> >
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Ron wrote:
> try this site.
>
> http://www.metalsdepot.com/products/alum2.phtml?page=rndtube&LimAcc=%20&aident
>
> Now I am not sure that its any cheaper than Kolb or that it is the right
> wall thinkness, it may be thicker. If you are going to weld your own H
> brace then it doesn't matter and you will get a stronger and a bit heavier
> Tube.
>
> Ron (Arizona)
Ron others,
The 6 inch tubing on that web sight has a wall thickness twice as thick as
the tubing on my Mk-3, (1/8 ") not only would the H sections not fit inside,
but the weight differance would be pretty substantial.
I have to think using that as a tail tube would move your CG pretty far aft.
I would stick with what Homer came up with.
Denny Rowe
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Firestar project |
I got a new tail wheel from Kolb, and put it in the tail wheel carrier. When
I tried to put the carrier in the suspension yoke, the wheel hits the lower flange
of the yoke. I will have to grind the flange to fit, and install the pivot
bolt from the bottom up. There is enough stock, so strength is not a problem.
Then I will have to re-install the wheel and axle shaft. The new wheel appears
to be the same as the old- casting marks, etc. Maybe the builder turned the
wheel down to fit? Does the builder have to make the carrier from scratch, out
of tubing? Mine appears to be well made, maybe factory. Were the original wheels
five inch, or smaller? Anyone know?
Bill Sullivan
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Firestar project |
I just looked at the picture that was posted of the Ultrastar, photo taken from
the rear. I noticed that it has the same tail wheel brackets I have on the
Firestar, but has a different wheel. It has a red wheel, and more room. Mine is
black, and fresh from Kolb- a five inch. Is the red one stock, and what diameter
is it?
Bill
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
> Now I am not sure that its any cheaper than Kolb or that it is the right
wall thinkness, it may be thicker.
>
> Ron (Arizona)
Ron:
Can do much better with Travis, plus receive the correct size.
Looks like the thinnest wall is .125 which is twice the that of the Kolb
tail boom.
john h
mkIII
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Thanks to all who replied. I found that indeed the best deal and the proper
stuff is directly from Travis at Kolb. I will go there.
Thanks again!
Still looking for a cage , Damaged etc. Or a complete aircraft, wrecked or
what ever and cheap. Maybe one that's in someone's way!
Aaron G.
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ultrastar Update |
At 10:05 PM 2/5/08 -0800, you wrote:
>
>
>In the meantime, here are some pics.
>
Ray,
Looks like your Ultrastar has negative dihedral.
Should make it a fun aircraft to fly.
Jack B. Hart FF004
Winchester, IN
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Firestar project |
Bill, Looks like a scooter wheel. Here's a pic of the stock one from my Mk.3
.
Rick
On Feb 6, 2008 7:05 AM, william sullivan <williamtsullivan@att.net> wrote:
> I just looked at the picture that was posted of the Ultrastar, photo
> taken from the rear. I noticed that it has the same tail wheel brackets I
> have on the Firestar, but has a different wheel. It has a red wheel, and
> more room. Mine is black, and fresh from Kolb- a five inch. Is the red one
> stock, and what diameter is it?
> Bill
>
> *
>
> *
>
>
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Firestar project |
Sent too soon. It's 5" in diameter, fine print says it's made in Sherbrooke,
Quebec, Canada. You can see the clearance to the swivel bolt. I measured the
TW on the FS and it's the same as this.
Rick
On Feb 6, 2008 9:10 AM, Richard Girard <jindoguy@gmail.com> wrote:
> Bill, Looks like a scooter wheel. Here's a pic of the stock one from my
> Mk.3.
>
> Rick
>
>
> On Feb 6, 2008 7:05 AM, william sullivan <williamtsullivan@att.net> wrote:
>
> > I just looked at the picture that was posted of the Ultrastar, photo
> > taken from the rear. I noticed that it has the same tail wheel brackets I
> > have on the Firestar, but has a different wheel. It has a red wheel, and
> > more room. Mine is black, and fresh from Kolb- a five inch. Is the red one
> > stock, and what diameter is it?
> > Bill
> >
> > *
> >
> > *
> >
> >
>
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Ultrastar Update |
I'll double check the dihedral with my laser level once I get the proper bolts,
but if there is any, its probably because I used undersized temporary non AN
bolts to assemble so I could take an inventory of what I needed to buy.
Thats what resulted in a slight negative dihedral.
Same thing on the elevator hookup as they were noticeably mis-aligned with my temporary
undersized bolts
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Riverside County, CA
Do Not Archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=162685#162685
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Winter flight/ streamlined struts |
Dan G wrote: << It's good to hear that I'm not the only one with that
vibration. How did streamlining the struts get rid of the vibration >>
Dan, and other interested Kolbers -
Airflow downstream of any strut with circular cross section creates an
eddy current called a "Von Karmann street." This flow phenomenon is an
eddy that curls back and forth in alternating directions, similar to
what you see in the stream of smoke rising from a cigarette. You can
also see the Von Karmann street effect in rivers that meander along a
flat countryside - the water course appears to curl alternately from one
direction to the other.
In airflow, these rapidly-oscillating eddy currents translate into a
vibration, and this is what we encounter with un-streamlined struts.
Dennis Kirby
Amazed to even remember this stuff since my Aero-101 courses 25 years
ago, in
Cedar Crest, NM
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Winter flight/ streamlined struts |
Hey Dennis,
How's the rebuild going?? Taken any photos lately? What's the timeframe
to getting your plane back in the air?
Mike Welch
MkIII> Subject: Kolb-List: Re: Winter flight/ streamlined struts > Date: We
d, 6 Feb 2008 13:27:17 -0700> From: Dennis.Kirby@kirtland.af.mil> To: kolb-
MDA/AL" <Dennis.Kirby@kirtland.af.mil>> > > > > Dan G wrote: << It's good t
o hear that I'm not the only one with that> vibration. How did streamlining
the struts get rid of the vibration >>> > Dan, and other interested Kolber
s -> > Airflow downstream of any strut with circular cross section creates
an> eddy current called a "Von Karmann street." This flow phenomenon is an>
eddy that curls back and forth in alternating directions, similar to> what
you see in the stream of smoke rising from a cigarette. You can> also see
the Von Karmann street effect in rivers that meander along a> flat countrys
ide - the water course appears to curl alternately from one> direction to t
he other. > > In airflow, these rapidly-oscillating eddy currents translate
into a> vibration, and this is what we encounter with un-streamlined strut
s.> > Dennis Kirby> Amazed to even remember this stuff since my Aero-101 co
=================> > >
_________________________________________________________________
Helping your favorite cause is as easy as instant messaging.-You IM, we g
ive.
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Winter flight/ streamlined struts |
Before MV.
john h
mkIII
How's the rebuild going?? Taken any photos lately? What's the
timeframe to getting your plane back in the air?
Mike Welch
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Firestar project |
I got the tailwheel assembly all together. Had to grind the lower strut pivot,
and install the pivot bolt up from the bottom. I had to grind the head of a
grade 8 bolt to round it off for wheel clearance, and cut a screwdriver slot in
it. The steering cables were no problem, and I put some tension on the wheel
shimmy springs.
First coat of Poly Brush on the aileron patches. Wish I had cut the fabric
a little straighter. The new wings appear to be a newer design than the old ones,
or a little different. The previous owner had never tried to fold the wings.
The new wings came in with a shorter distance between the attachment points.
He took a blank extended "u-joint" and drilled the holes to fit. Mounts fine,
but did not fold. Turns out the old ones had front and rear holes on the same
plane, and the new ones were mounted with the rear lug mounted with a vertical
bolt. The new wings also seem to be sturdier at the rear attachment- fatter
hardware. I will fit and change the wing attachments when I have better weather.
Does anyone know when they switched dimensions and hardware? It might help
me date this thing.
Bill sullivan
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|