Today's Message Index:
----------------------
1. 05:35 AM - Re: Re: HKS readings for the day (zeprep251@aol.com)
2. 05:49 AM - Re: HKS readings for the day (william sullivan)
3. 06:07 AM - Re: Re: HKS readings for the day (Jack B. Hart)
4. 06:47 AM - Re: Re: HKS readings for the day (Mike Welch)
5. 07:10 AM - Re: Re: HKS readings for the day (John Hauck)
6. 07:34 AM - Re: Re: HKS readings for the day (jerb)
7. 09:26 AM - Re: HKS readings for the day (lucien)
8. 10:26 AM - Re: 9-volt DC Power for a Handheld Radio? (icrashrc)
9. 10:52 AM - Structural additions to wing? Power for a Kolbra? (Nick Cassara)
10. 11:08 AM - Re: Structural additions to wing? Power for a Kolbra? (John Hauck)
11. 11:18 AM - Re: Re: 9-volt DC Power for a Handheld Radio? (Mike Welch)
12. 12:06 PM - Re: Re: HKS readings for the day (Jack B. Hart)
13. 12:29 PM - Re: Structural additions to wing? Power for a Kolbra? (JetPilot)
14. 03:20 PM - Re: Re: 9-volt DC Power for a Handheld Radio? (Dana Hague)
15. 05:06 PM - Re: Structural additions to wing? Power for a Kolbra? (Ralph B)
16. 05:09 PM - Re: Fabric rubbing on cage tubes (william sullivan)
17. 08:00 PM - Re: Crab vs sideslip crosswing landing (dalewhelan)
18. 08:05 PM - Re: Re: Fabric rubbing on cage tubes (possums)
19. 08:16 PM - Re: Re: Fabric rubbing on cage tubes (Dana Hague)
20. 08:26 PM - Re: Re: Fabric rubbing on cage tubes (possums)
21. 08:40 PM - Re: Re: Fabric rubbing on cage tubes (possums)
22. 09:09 PM - Re: Re: Fabric rubbing on cage tubes (Charlie England)
Message 1
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| Subject: | Re: HKS readings for the day |
The oil temp with cooler equipped engines need adjustable air supplies.Fooling
with taping off the front of the cooler is hit and miss.Does anyone have a simple,
reliable system yet?(this is submitted for a friend with a 912S in a Savannah)
-----Original Message-----
From: lucien <lstavenhagen@hotmail.com>
Sent: Thu, 22 Jan 2009 6:59 pm
Subject: Kolb-List: Re: HKS readings for the day
John Hauck wrote:
> That won't help Larry a whole lot because, if I understand correctly, he is
operating his HKS at 5800 rpm cruise. It is working a lot harder at 5800 and
generating a lot more heat.
>
> 912's measure engine oil temp in the oil pump after the cooler. Rotax wants
912's to get at least 190F. If I don't, I'll have a milky looking goop on the
under side of the oil tank cap.
>
> john h
> mkIII
>
I freaked a bit the first time I saw the milky stuff syndrome on my oil cap too
as a new 912 driver. I was looking all over for coolant getting into the oil,
etc., until a friend of mine told me it was a symptom from the oil not getting
hot enough for a long enough time.
I have the oil thermostat on mine and when it's really cold out I still have to
run the motor hard to get the temps to at least 180.
There have been days cold enough that the temps couldn't hit 180, so I landed
and called it quits. Too cold on the oil is hard on the engines according to
rotax.....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=226279#226279
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| Subject: | Re: HKS readings for the day |
- Instead of blocking off the front of the radiator, has anyone tried mak
ing a set of shutters- like they used to use on old diesel trucks?--Sim
ple to make, and could be either cable controlled or by a thermostat.- Sa
me problem, same solution.
-
-------------------------
--------------------- Bill Sulliv
an
-------------------------
--------------------- Windsor Loc
ks, Ct.
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| Subject: | Re: HKS readings for the day |
From: zeprep251@aol.com
>
The oil temp with cooler equipped engines need adjustable air
supplies.Fooling with taping off the front of the cooler is hit and
miss.Does anyone have a simple, reliable system yet?(this is submitted for a
friend with a 912S in a Savannah)
>
zeprep251,
I have had a radiator shutter on the FireFly for several years and it works
very well. I see no reason why the same scheme cannot be applied to an oil
cooler It can be seen at:
http://www.thirdshift.com/jack/firefly/firefly123.html
http://www.thirdshift.com/jack/firefly/firefly67f.html
http://www.thirdshift.com/jack/firefly/firefly76.html
Jack B. Hart FF004
Winchester, IN
Message 4
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| Subject: | Re: HKS readings for the day |
Jack,
As usual, very innovative, and a real nice job. I do have a question for you,
though. You made a reference to weights, and they seem confusing to me. You
mention the unit weighs .9 oz. Or, a part weighs .2 oz.
These sure seem light!! Did you mean 9 oz, and 2 oz., etc?
Also, does your coolant system have a built-in thermostat?
Mike Welch
MkIII
----------------------------------------
> Date: Fri, 23 Jan 2009 09:08:46 -0500
> To: kolb-list@matronics.com
> From: jbhart@onlyinternet.net
> Subject: Re: Kolb-List: Re: HKS readings for the day
>
>
> Date: Fri, 23 Jan 2009 08:34:36 -0500
> From: zeprep251@aol.com
>>
> The oil temp with cooler equipped engines need adjustable air
> supplies.Fooling with taping off the front of the cooler is hit and
> miss.Does anyone have a simple, reliable system yet?(this is submitted for a
> friend with a 912S in a Savannah)
>>
>
> zeprep251,
>
> I have had a radiator shutter on the FireFly for several years and it works
> very well. I see no reason why the same scheme cannot be applied to an oil
> cooler It can be seen at:
>
> http://www.thirdshift.com/jack/firefly/firefly123.html
> http://www.thirdshift.com/jack/firefly/firefly67f.html
> http://www.thirdshift.com/jack/firefly/firefly76.html
>
> Jack B. Hart FF004
> Winchester, IN
>
>
_________________________________________________________________
Windows Live: E-mail. Chat. Share. Get more ways to connect.
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Message 5
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| Subject: | Re: HKS readings for the day |
Well, I have to disagree on that one.
John Williamson and I have more than 4,000 hours flying the 912UL and 912UL
S in my mkIII and his Kolbra. Our system works great. Usually, a couple w
raps of tape when the cold temps of winter arrive is all it takes. It is n
ot a daily chore.
My philosophy of flying is "keep it simple". The less "stuff" I have to co
ntend with on my aircraft and the less "stuff" I have to do, the better off
I am aviating.
Like I shared with you all yesterday, reducing the size of the coolant radi
ator takes care of increasing CHT, which makes the 912 run better, and also
brings up engine oil temp. The 912 is primarily an oil cooled engine. Th
e heads are oil and water cooled. The cylinders are air cooled. No need t
o block the oil cooler.
john h
mkIII - Might get to exercise the mkIII this afternoon. Weather if looking
good.
----- Original Message -----
From: zeprep251@aol.com
To: kolb-list@matronics.com
Sent: Friday, January 23, 2009 7:34 AM
Subject: Re: Kolb-List: Re: HKS readings for the day
The oil temp with cooler equipped engines need adjustable air supplies.Fo
oling with taping off the front of the cooler is hit and miss.Does anyone h
ave a simple, reliable system yet?(this is submitted for a friend with a 91
2S in a Savannah)
Message 6
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| Subject: | Re: HKS readings for the day |
Way back a long, long, time ago when I was flying Piper Cherokee's I
recall that when winter came on they would install a winterization
plate which reduced the airflow to the oil cooler. You might have to
do the same thing with your 912's and HKS engines to keep the oil
temps high enough during cold weather months.
jerb
At 08:59 PM 1/22/2009, you wrote:
>
>
>John Hauck wrote:
> > That won't help Larry a whole lot because, if I understand
> correctly, he is operating his HKS at 5800 rpm cruise. It
> is working a lot harder at 5800 and generating a lot more heat.
> >
> > 912's measure engine oil temp in the oil pump after the
> cooler. Rotax wants 912's to get at least 190F. If I don't,
> I'll have a milky looking goop on the under side of the oil tank cap.
> >
> > john h
> > mkIII
> >
>
>
>I freaked a bit the first time I saw the milky stuff syndrome on my
>oil cap too as a new 912 driver. I was looking all over for coolant
>getting into the oil, etc., until a friend of mine told me it was a
>symptom from the oil not getting hot enough for a long enough time.
>
>I have the oil thermostat on mine and when it's really cold out I
>still have to run the motor hard to get the temps to at least 180.
>
>There have been days cold enough that the temps couldn't hit 180, so
>I landed and called it quits. Too cold on the oil is hard on the
>engines according to rotax.....
>
>LS
>
>--------
>LS
>Titan II SS
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=226279#226279
>
>
Message 7
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| Subject: | Re: HKS readings for the day |
ulflyer(at)verizon.net wrote:
> Way back a long, long, time ago when I was flying Piper Cherokee's I
> recall that when winter came on they would install a winterization
> plate which reduced the airflow to the oil cooler. You might have to
> do the same thing with your 912's and HKS engines to keep the oil
> temps high enough during cold weather months.
> jerb
>
Well the oil thermostat works fine for the oil temp. Below 180f, there's no oil
flowing through the oil cooler anyway. Its probably the super cooled CHT's that
are preventing the oil temp from getting up to the green in those cases where
it still stays below that.
I've used the tape method in the past and like John says it works pretty well,
but I havn't found the correct amount of tape to use. On mine, the oil cooler
is mounted directly in front of the radiator which does help when oil is flowing
through the cooler.
There are several different shutter designs I've been considering and all of them
so far are too hard to retrofit and fail in a closed position, etc.
I havn't tried taping off the radiator itself on each side of the oil cooler as
John suggested - that may very well be the ticket.
We're having a mild winter this year, tho, so I havn't had too much problem yet.
I've been able to run 180 to 190f so I havn't messed with this yet.
I may have a go with the tape the way John suggested tho if it turns cold again....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=226378#226378
Message 8
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| Subject: | Re: 9-volt DC Power for a Handheld Radio? |
To all,
I'm going to answer a number of questions in one post. I've been watching this
thread but haven't had time to respond. I still don't really have the time so
i'm making it easy on me. Sorry.
Dennis K.,
The short answer is your best bet is to call Sportys and ask.
Now for the long version...
I bought a new iCom A-24 @ S-n-F last year. When i got back to the hotel room i
did what any modern gadget junkie would do. I plugged it in to start charging
with the included 110v power supply. Then i turned it on and opened the instruction
manual. It turns out your not supposed to power up the radio while it's
charging. Never mind the fact that in iComs own product brochure it says it's
OK to do what i did.
[http://www.icomamerica.com/en/products/avionics/handheld/a24/default.aspx]
I now have a over voltage message that comes on every time i power up the radio.
I talked to the iCom rep at Oshkosh and he told me too bad, i should have read
the instructions packed with the radio before touching the radio. He also
told me there's no way to make the over voltage message go away and that i should
use it as a reminder of my foolishness. I told him all it would do would be
to remind me never to buy an iCom radio again. The bottom line is iCom doesn't
seem to be able to add a charge control circuit to a $400 radio but any Chinese
sweatshop can add one to a $10 toy.
Mike,
Battery cell voltage is based on the chemistry of the cell. Nickle based cells
are 1.2 volts because that's what the chemistry creates. There are no 1.5 volt
nickle based cells. Only confused retailers. :-)
Most wall wart type power supplies are unregulated so it's no surprise you toasted
your Nokia phone. The only real surprise is it didn't ignite the battery.
Lithium based cells do not tolerate over voltage well!
John H. is correct in that some of the hand held radios on the market are sold
with either a rechargeable pack or a dry cell pack. These radios should operate
safely on either but not necessarily on the 14+ volts of a properly operating
airplane or car charging system.
Rick N.,
A severe voltage spike problem usually means there's an issue somewhere else. Generally
on the ground side of the circuit. If all your power connections are
correct and you don't have a ground loop setup anywhere then your best bet is
to put a large capacitor in the power feed for your avionics. That will help absorb
the spike and protect your valuable equipment.
There is an issue with certain unprotected starter solenoids. If there's not a
internal diode on your solenoid you need to add one externally. The collapse of
the magnetic field in the solenoid can cause a substantial reverse voltage spike.
Feel free to email me direct if I've caused more questions then I've answered.
--------
Scott
www.ill-EagleAviation.com
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=226389#226389
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| Subject: | Structural additions to wing? Power for a Kolbra? |
Hello Kolber's,
I have seem a handful of pictures on the web of builders adding, additional,
structural support members to the Kolb wing.
I have no current plans to add any structure when I start to build my basic
"three leading edge wing" similar to the mark lll classic. I will be
extending the wing ends and adding droop tips, but we have already cover
that subject. Does anyone think there is something I Should add to the wings
structure? If so why?
Are there any Kolbra pilots out there.I am wondering about power
requirements for the Kolbra. I seen to remember John H saying something
about John W not being happy till he had a 912?
Thanks as always,
Nick Cassara
Palmer, Alaska 15 degrees NE winds to 30kt
Message 10
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| Subject: | Re: Structural additions to wing? Power for a Kolbra? |
Nick:
Make that a 912ULS.
John W started out with a direct drive Jabiru, never got off the ground wit
h a Verner, then went to the Rotax 912ULS. Somewhere along the line he sol
d the 912ULS and mounted a used 912UL. Flew it one time, took it off and s
old it. Picked up the phone, found a new 912ULS and bought it. John W was
once again happy. ;-)
Rotax 912's are expensive, but you get an engine you can depend on. In you
r part of the world, which I have had the opportunity to fly several times
with both a 912UL and a 912ULS, I wouldn't fly with anything else on a Kolb
. I fly for enjoyment. Not being able to depend on my power plant would t
ake a lot of enjoyment out of my flying.
john h
mkIII - 67F and the wind is gusting to 20 mph. So much for flying today...
Are there any Kolbra pilots out there.I am wondering about power requirem
ents for the Kolbra. I seen to remember John H saying something about John
W not being happy till he had a 912?
Thanks as always,
Nick Cassara
Palmer, Alaska 15 degrees NE winds to 30kt
Message 11
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| Subject: | Re: 9-volt DC Power for a Handheld Radio? |
Scott,
You are correct, there are NO NiMH 1.5 volt AA batteries. I misspoke. I didn't
actually read the chemical contents of them when I made reference to them.
Being that they are rechargable, I
assumed they were NiMHs.
They are actually 1.5 volt AA Rechargeable Alkalines. I put my digital Multimeter
to a fully charged one, and it says "1.585 volts". Good batteries.
I bought the AA rechargeable battery shell ($38..eecks!) for my Icom A24. It's
just the container, you add your own batteries.
Thanks for the correction.
Mike Welch
MKIII
_________________________________________________________________
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Message 12
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| Subject: | Re: HKS readings for the day |
At 06:47 AM 1/23/09 -0800, you wrote:
>
>
>Jack,
>
> As usual, very innovative, and a real nice job. I do have a question for
you, though. You made a reference to weights, and they seem confusing to
me. You mention the unit weighs .9 oz. Or, a part weighs .2 oz.
> These sure seem light!! Did you mean 9 oz, and 2 oz., etc?
>
> Also, does your coolant system have a built-in thermostat?
>
Mike,
The weights listed are correct. When you have a defined empty weight limit,
you must keep component weight down.
No, the system does not include a thermostat. The one supplied by Simonini
weighed too much.
Jack B. Hart FF004
Winchester, IN
Message 13
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| Subject: | Re: Structural additions to wing? Power for a Kolbra? |
John Hauck gave me a lot of good advice when I was building my Kolb, including
some mods to make it a stronger. I have John Hauck's Rib strengthening in my
MK III Xtra wings, and I think its a great idea. They add a lot of strength with
very little weight. Even with many years of turbulence, and flying in all
kinds of conditions, I will have peace of mind knowing that my wings are stronger
than they need to be, and that structurally, they will probably outlast me
:) I also have and like John's elevator and tail gussets.
I am sure there are a couple things that John H has done that I don't remember
off hand... John H's Kolb has flown more than 2000 hours, and in some very exciting
conditions from the stories I hear ! If anyone has a good idea on what
you can do to strengthen a Kolb Structure or make it last longer, John H would
be the guy to ask !
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=226413#226413
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| Subject: | Re: 9-volt DC Power for a Handheld Radio? |
At 01:24 PM 1/23/2009, icrashrc wrote:
>I bought a new iCom A-24 @ S-n-F last year. When i got back to the hotel
>room i did what any modern gadget junkie would do. I plugged it in to
>start charging with the included 110v power supply. Then i turned it on
>and opened the instruction manual. It turns out your not supposed to power
>up the radio while it's charging. Never mind the fact that in iComs own
>product brochure it says it's OK to do what i did.
>[http://www.icomamerica.com/en/products/avionics/handheld/a24/default.aspx]
>I now have a over voltage message that comes on every time i power up the
>radio. I talked to the iCom rep at Oshkosh and he told me too bad, i
>should have read the instructions packed with the radio before touching
>the radio. He also told me there's no way to make the over voltage message
>go away...
Hmmm, I'm not sure but I'm pretty sure I've used the radio while plugged in
to the AC adapter. Could be wrong though. That might explain why the AC
battery charger is 12V but the radio is labeled 11V... 12V for charging,
11V for external power?
I would bitch and moan at Icom until they reflashed the BIOS under
warranty, I'm sure that would get rid of the message.
-Dana
--
PADDLE FASTER!! I hear banjo music!!
Message 15
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| Subject: | Re: Structural additions to wing? Power for a Kolbra? |
My Kolbra has an early 912 80-hp engine and it seems to do fine with a passenger.
If it had a 912 100-hp, it would cruise faster, but burn more fuel too.
Ralph
--------
Ralph B
Original Firestar 447
N91493 E-AB
21 years flying it
Kolbra 912UL
N20386
0 years flying it
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=226466#226466
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| Subject: | Re: Fabric rubbing on cage tubes |
- Cristal- I happened to look at my cage tubes today, and noticed a flat
spot worn on one of the aluminum tubes.- The fabric is off for the re-bui
ld, but I remember seeing exactly what you describe.- I thought it was an
oil stain, or some kind of mold.- By the looks of it, it was probably ab
rasion from the Dacron.- It's quite a flat spot, so good catch.- Fix it
like the guys said.- you might even be able to feel a flat spot on the t
ube.- Dacron must be pretty strong stuff to do that to aluminum.
-
-------------------------
------------- Bill Sullivan
-------------------------
------------- Windsor Locks, Ct.
Message 17
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| Subject: | Re: Crab vs sideslip crosswing landing |
I have taken almost all of those courses, glad I did
--------
Dale Whelan
503 powered Firestar II
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=226484#226484
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| Subject: | Re: Fabric rubbing on cage tubes |
At 08:07 PM 1/23/2009, you wrote:
> Cristal- I happened to look at my cage tubes today, and noticed a
> flat spot worn on one of the aluminum tubes. The fabric is off for
> the re-build, but I remember seeing exactly what you describe. I
> thought it was an oil stain, or some kind of mold. By the looks of
> it, it was probably abrasion from the Dacron. It's quite a flat
> spot, so good catch. Fix it like the guys said. you might even be
> able to feel a flat spot on the tube. Dacron must be pretty strong
> stuff to do that to aluminum.
>
> Bill Sullivan
> Windsor Locks, Ct.
don't think they use Dacron
Message 19
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| Subject: | Re: Fabric rubbing on cage tubes |
At 11:05 PM 1/23/2009, possums wrote:
>don't think they use Dacron
Stits IS Dacron, as is Ceconite. All three are trademark names for
polyester fabric.
-Dana
--
A day without sunshine is like, night.
Message 20
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| Subject: | Re: Fabric rubbing on cage tubes |
At 08:07 PM 1/23/2009, you wrote:
> Cristal- I happened to look at my cage tubes today, and noticed a
> flat spot worn on one of the aluminum tubes.
I don't think you should have had a problem if it was done right to begin with.
You glue the fabric, shrink/iron the fabric.
When you dope or seal the fabric, put on the reinforcement tapes,
spray the silver & paint,
it pretty much goes thru the fabric & cements it to those tubes.
Least that's what I thought.
Mines 11 years old.
Message 21
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| Subject: | Re: Fabric rubbing on cage tubes |
At 11:11 PM 1/23/2009, you wrote:
>
>At 11:05 PM 1/23/2009, possums wrote:
>
>
>>don't think they use Dacron
>
>Stits IS Dacron, as is Ceconite. All three are trademark names for
>polyester fabric.
I think you might be wrong, I've used both on different Uls - My
old 1983 CGS Hawk used Dacron coverings - right?? Like sail cloth?
The Poly-Fiber method uses Poly-Brush followed by Poly-Spray, which
includes a silver coat for UV protection and the final color coats
for the desired color.
These products are essentially the same airplane dope as the adhesive
and are completely compatible.
EkoFill by Stewart Systems is water-based with a high level of solids
that will fill the weave of the Dacron fabric while including
sufficient UV inhibitors to protect the fabric.
but that is just an extra.
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| Subject: | Re: Fabric rubbing on cage tubes |
william sullivan wrote:
> Cristal- I happened to look at my cage tubes today, and noticed a
> flat spot worn on one of the aluminum tubes. The fabric is off for
> the re-build, but I remember seeing exactly what you describe. I
> thought it was an oil stain, or some kind of mold. By the looks of
> it, it was probably abrasion from the Dacron. It's quite a flat spot,
> so good catch. Fix it like the guys said. you might even be able to
> feel a flat spot on the tube. Dacron must be pretty strong stuff to
> do that to aluminum.
>
> Bill Sullivan
> Windsor Locks, Ct.
>
Haven't followed this thread closely, but do have a comment about fabric
wearing aluminum. It's likely not the covering doing the damage, but
grit carried by the covering as it moves relative to the tube.
Most of the guys flying bigger experimentals know not to use nylon wire
ties directly on motor mounts because they can eat through the 4130
steel. Dirt & grit get embedded in the nylon & if it moves, it acts like
a saw. This is a very real issue with any soft material moving against
metal in an a/c; I've had a fabric covered starter cable cut through an
aluminum oil drain-back tube on a Lyc.
Charlie
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