Today's Message Index:
----------------------
1. 04:13 AM - Re: Re: Ultrastar Update (Dana Hague)
2. 07:40 AM - Re: Ultrastar Update (jb92563)
3. 08:04 AM - Re: Re: Ultrastar Update (John Hauck)
4. 08:25 AM - Re: Re: covering (Mike Welch)
5. 09:13 AM - Re: covering (JetPilot)
6. 02:39 PM - Re: Re: Ultrastar Update (herb)
7. 02:53 PM - Re: Re: Ultrastar Update (John Hauck)
8. 03:32 PM - Re: Re: Ultrastar Update (herb)
9. 03:51 PM - Re: Re: Ultrastar Update (Dana Hague)
10. 08:41 PM - Re: MK3 parts (Ron)
11. 10:08 PM - Re: Ultrastar Update (jb92563)
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: Ultrastar Update |
At 07:25 PM 2/4/2008, jb92563 wrote:
>Are those numbers the Max from Cuyuna manual, or from your own engine?
>
>I guess looking at the plugs should give an idea to what is happening as well.
>
>I wonder if a couple minutes running is enough to get an indication on the
>plugs?
Ray, the numbers I gave are from the Cuyuna manual. I don't know how much
running time is necessary to read the plugs, but it can't hurt to have a
look. Also check what main jet is in your carb, and where the needle is;
you might need to go bigger and/or move the needle clip down.
-Dana
--
"Very funny, Scotty. Now beam down my clothes."
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 |
|
| Subject: | Re: Ultrastar Update |
Sounds like I am running to lean if those numbers are right.
Not sure how to tune it for richer, would the needle clip go in the next lower
notch to make it more rich?
Or do I change needles to make it richer.....lower needle number is richer?
I'll take a look and see what needle number I am running tonight.
Dana, what needle number are you running?
Are you using a filter on your carb?
--------
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=162522#162522
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: | Re: Ultrastar Update |
Ray:
Are you running the correct prop pitch?
Two stroke tuning in an airplane is based on correct prop loading as the
number one item. If it is incorrect, everything on down the line, jets,
needles, and plugs, with also be incorrect.
I find the best way to get an unknown engine back in line is put everything
in the carb back where it belongs, and insure jetting and needles are
correct size.
Also insure the spark plug is the correct heat range.
Insure the correct prop and pitch is installed. For a Cuyuna ULII02, I
believe that would have been a Jim Culver 50X30. That was a perfect prop
for the US with ULII02.
Hope you all are operating those engines with air filters.
john h
mkIII
> Sounds like I am running to lean if those numbers are right.
> Are you using a filter on your carb?
>
> --------
> Ray
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 |
|
Hi Dan,
I'm fairly familiar with the design requirements of a smooth flowing airf
oil. Without my (Ivo)prop in place, I can't quite tell what shape that fus
elage trailing edge fairing would actually be. I think I was more musing,
rather than actually suggesting a specific shape.
As a propeller blade is swinging past this fairing, would there be any ad
vantage at all if the fairing has a "more angled" edge?? I guess that woul
d depend on the distance to the fairing and the angle it has to swing past.
I just walked out to my shop and took a look at the area in question. Th
e aileron tube (and corresponding hardware) really interfere with the abili
ty to buiild a very effective fairing. Plus, the fact is you don't get muc
h room to build something terribly fancy. I think this is one of those cas
es where you do the best you can...and call it good.
Now, those wing strut end-fairings Uncle Craig built....those would reall
y be nice to have!!
Mike Welch
Building the first 200 mph MkIII (Just kidding!!)
Do Not Archive
> Mike,> > For aerodynamic purposes, it's best to minimize the transition a
ngles > that the air has to follow - if the angle is too great, the air flo
w > will separate (as in wing stall) and you will loose the benefit of the
> fairing. In the case below, the angle on the right side might be a bit >
steep, depending on how long your fairing is. For a given length, the > sha
llowest angle would be achieved by a symmetrical fairing. When I > worked o
n pneumatic aircraft systems, we tried to keep angles of sharp > transition
s (i.e. the angle from one surface to the next along a > streamline) to les
s than 7 degrees, but that was probably conservative.> > The prop clearance
you need highly depends on the prop. The IVO prop > needs a lot of clearan
ce because it flexes so much. (I think they > recommend at least 5"). Also,
as you pointed out, the airflow near the > prop is somewhat complicated, s
o I think you would want some separation > in order to minimize vibration d
ue to interaction of the prop and airframe.> > Dan G> 503 F2> Tucson>
_________________________________________________________________
Helping your favorite cause is as easy as instant messaging.-You IM, we g
ive.
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 |
|
I wish Craig would sell the wing strut fairings, and even more so, the big engine
cowl he made !!! I would be first in line for that.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=162539#162539
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 |
|
| Subject: | Re: Ultrastar Update |
I seem to recall that the Ul202 engine was succeptible to case
leaks..Needed re torqueing once in a while.. A very old engine model
at any rate..15 years old or older? Herb
At 09:37 AM 2/5/2008, you wrote:
>
>Sounds like I am running to lean if those numbers are right.
>
>Not sure how to tune it for richer, would the needle clip go in the
>next lower notch to make it more rich?
>
>Or do I change needles to make it richer.....lower needle number is richer?
>
>I'll take a look and see what needle number I am running tonight.
>
>Dana, what needle number are you running?
>
>Are you using a filter on your carb?
>
>--------
>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=162522#162522
>
>
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 |
> I seem to recall that the Ul202 engine was succeptible to case
> leaks..Needed re torqueing once in a while.. A very old engine model at
> any rate..15 years old or older? Herb
Herb:
The ULII02 was a good engine. Had CDI ign, which was much easier to
maintain than the point ign Rotax's.
If one did not retorque the cylinders every 100 hours or more, they were
prone to leak at the cylinder base gasket. This was probably caused by the
small amount of metal that remained after the engine cases were lightened
from the 430 to the ULII02. In an US the engine had to be dropped from the
engine mount to get at the bolts to torque them. Because of the extra work
involved, most of us would fly them until they started leaking, then end up
replacing cyl base gaskets and head gaskets.
Never had any big problems with the ULII02, but was plagued with little ones
that were annoying and would occasionally put one on the ground. It was all
a big learning curve, getting out of turbine powered helicopters that had
lots of folks and lots of money available for parts and repairs, into a
little two stroke that had to be maintained by a guy anxious to fly more
than anxious to spend all time on the ground fixing stuff.
john h
mkIII
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: Ultrastar Update |
John
Yeah! I am old and good also...:-)
I had a UL202 on the US that I had... Very surprised at the ease
of starting.. Nearly fell backward, expecting to have to pull and
pull and pull .. Started just about the time I pulled the rope a foot
or so.. Ran strong. Herb
At 04:50 PM 2/5/2008, you wrote:
>
>
> > I seem to recall that the Ul202 engine was succeptible to case
>>leaks..Needed re torqueing once in a while.. A very old engine
>>model at any rate..15 years old or older? Herb
>
>
>Herb:
>
>The ULII02 was a good engine. Had CDI ign, which was much easier to
>maintain than the point ign Rotax's.
>
>If one did not retorque the cylinders every 100 hours or more, they
>were prone to leak at the cylinder base gasket. This was probably
>caused by the small amount of metal that remained after the engine
>cases were lightened from the 430 to the ULII02. In an US the
>engine had to be dropped from the engine mount to get at the bolts
>to torque them. Because of the extra work involved, most of us
>would fly them until they started leaking, then end up replacing cyl
>base gaskets and head gaskets.
>
>Never had any big problems with the ULII02, but was plagued with
>little ones that were annoying and would occasionally put one on the
>ground. It was all a big learning curve, getting out of turbine
>powered helicopters that had lots of folks and lots of money
>available for parts and repairs, into a little two stroke that had
>to be maintained by a guy anxious to fly more than anxious to spend
>all time on the ground fixing stuff.
>
>john h
>mkIII
>
>
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: Ultrastar Update |
At 10:37 AM 2/5/2008, jb92563 wrote:
>Sounds like I am running to lean if those numbers are right.
>Not sure how to tune it for richer, would the needle clip go in the next
>lower notch to make it more rich?
>Or do I change needles to make it richer.....lower needle number is richer?
>I'll take a look and see what needle number I am running tonight.
>Dana, what needle number are you running?
>Are you using a filter on your carb?
Ray, yes, it sounds like it's lean. Moving the needle clip down makes the
needle go up, which makes it richer... but only in the midrange. I don't
know what needle number I have; I don't think many people change
them. Full throttle mixture is controlled by the main jet, which _does_
need to be changed according to the seasons or altitude:
ULII-02, Cuyuna exhaust, Mikuni VM32 carburetor
Altitude
8000 250 240 230 220 210
6000 270 260 250 240 230
4000 290 280 270 260 250
2000 310 300 290 280 270
Sea Level 330 320 310 300 290
Temp. =B0F 0-20=B0 20-40=B0 40-60=B0 60-80=B0 80-100=B0
Mine had a 300 main jet, which I changed to a 310 for winter flying (below
40=B0 and it's too cold to fly!). On a couple of hot days last summer, I
stuck with the 300 jet (all I had at the time) but I had the needle clip in
the top notch.
-Dana
--
The strongest reason for the people to retain the right to keep and bear
arms is, as a last resort, to protect themselves against tyranny in
government. - Thomas Jefferson
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 |
|
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)
===========================================
---- Richard Girard <jindoguy@gmail.com> wrote:
============
Aaron, I've looked for the 6" diameter tube used on the Mk.3 without
success. I had to buy a 5" tube for another pod and boom airplane in 2006.
Got it from Wick's, it was $400(!!!), and I stopped and picked it up as I
was coming back from a trip so there was no packing or shipping. 5" was also
the biggest size Wick's carried. Just checked their 2008 catalog and 5" is
still $32.84 a foot and it's still the largest they carry.
Rick
On Feb 4, 2008 7:40 PM, Aaron Gustafson <agustafson@chartermi.net> wrote:
> agustafson@chartermi.net>
>
> I'm looking for some parts to put together a MK3. Here are a few questions
> if anyone can guide me.
>
> 1. Is there any place other (cheaper) than Kolb to get a fuselage tube?
> 2.Has anyone done a major repair on a cage and have any info or
> sugestions.
> Or should I build one from scratch? Anyone have any info on tubing
> diameters
> and thicknesses
> 3. I believe there have been some gear leg options other than the 7075
> stock
> ones. Tell me if you can.
> 4.Are there some places better than others for obtaining Polyfiber
> products
> ie. fabric, paint etc.
>
> I built a FS2 in 95 and put 440 hours on it. Last June I flew my scratch
> built Zenith 601 but I miss being able to look straight down so gotta
> build!
>
> I appreciate any help you can give me 'on list' or private
> agustafson@chartermi.net
>
> Aaron Gustafson Iron Mountain Michigan
>
>
--
kugelair.com
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: Ultrastar Update |
Good info folk I appreciate all the great feedback.
I'm going to save all that info and check it all out.
I also love the easy starting of the UL-202....a short pull is all it takes once
its primed.
In the meantime, here are some pics.
--------
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=162637#162637
Attachments:
http://forums.matronics.com//files/kolb_2002_0101_000011aa_543.jpg
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! --
|