Today's Message Index:
----------------------
1. 02:03 AM - Re: Dual Elevator Cables (pat ladd)
2. 02:10 AM - Re: MV (pat ladd)
3. 03:51 AM - Re: carburetor ice question (George T. Alexander, Jr.)
4. 03:56 AM - Repairman course (Lanny Fetterman)
5. 06:33 AM - Re: MV (Earl & Mim Zimmerman)
6. 09:03 AM - Re: Dual Elevator Cables (pat ladd)
7. 05:29 PM - Richard Pike (Eugene Zimmerman)
8. 05:53 PM - Re: Dual Elevator Cables (Charlie England)
9. 06:45 PM - Massey Aero 6th Annual Open Hangar Day (WhiskeyVictor36@aol.com)
10. 06:47 PM - Re: Repairman course (grabo172)
11. 08:20 PM - Re: Re: cooling (Jack B. Hart)
12. 08:36 PM - Registering ultralights (Richard Pike)
13. 09:37 PM - Re: Re: cooling (John Hauck)
14. 09:51 PM - Re: Re: cooling (Jim Baker)
Message 1
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| Subject: | Re: Dual Elevator Cables |
once they determine it was a legal ultralight, they leave it up to local law
enforcement to conduct any investigation>>
Hi Dana,
thats interesting. Here an ultralight, inside the ultralight legal spec. is
treated exactly like any other aircraft. No exemptions for low flying, 500
ft rule etc
There are no local laws which could be invoked, therefore all infringements
concern the CAA not the local police. The local coroner would probably hold
an inquest in the case of a fatality but after official identification it
would be adjourned pending the result of the CAA investigation. Any claim
against the pilot by someone who has been hurt would be pursued in the
civil, not the criminal court. Of course the result of the CAA investigation
would be crucial in such a case.
We do not have such a thing as an unregistered plane.
Cheers
Pat
do not archive
Message 2
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The weekend after is the 19th and 20th. >>
Thanks Larry
Pat
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| Subject: | carburetor ice question |
Jimmy et al:
Link to the Expo site....
http://www.sport-aviation-expo.com/
DO NOT ARCHIVE
George Alexander
http://gtalexander.home.att.net
_____
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of hillstw
Sent: Sunday, December 03, 2006 2:01 PM
Subject: Re: Kolb-List: carburetor ice question
Jim:
What is the sport category expo? When is it? I am not familar with it.
No doubt your weather is nicer than our just now. We have had a real big
winter storm; snow is melting off now, but will take a while, as we had
about a foot.
Regards.
Jimmy
Message 4
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| Subject: | Repairman course |
Eric, Congratulations on passing the repairman course. Lanny Do not
archive
Message 5
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George Thompson wrote:
> I am still thinking about it. For sure it wouldn't be the same without
> Dave and Eve. At the present I am thinking now that I should come up to
> explain to everyone what we think must have happened.
> Az Bald Eagle
Please post it to the list also! Thanks
~ Earl
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Message 6
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| Subject: | Re: Dual Elevator Cables |
<<If it's two seats, or over 254 lbs,factory built you can't change
much; homebuilt, you have to register it as experimental and go through
inspections, test flying in a restricted area, etc. You can change
pretty much anything when you build it but you still
have to get it approved for flight.
If it's under 254 lbs and single seat (i.e. ultralight), you can do
virtually anything... but the ultralight regs prohibit you from flying,
at ANY altitude, over any congested area or open air assembly of
persons.>>
Thanks Dana,
here both single seat and two seater are microlights (as we call them)
There is no difference between kit and factory built. Spec is not more
than 2 seats. max stall 35knots, Max All Up weight,300kg (662lbs) single
seat. 450Kg (993 lbs) twin seat. Above those weights it becomes an `A`
licence machine. We have Kolbs operating here as `A` category. But its a
whole new ball game regarding maintenance, flying licence, medicals
etc.,.
There is movement towards a deregulated class and the Kolb dealer Mike
Moulai had an example (Firestar?) on show at our major aviation
Exhibition over the weekend. With our background it is unlikely that
`deregulated` will mean quite as much freedom as many here would like.
We can hope. Nothing is set in stone yet.
Flying over congested area and crowds AT ANY HEIGHT applies here also. I
always applied the rule `high enough to glide clear` until I was hauled
over the coals by an instructor on a check flight.
Cheers
Pat
do not archive
Message 7
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Richard,
Please e-mail me directly.
imhisson2 (at) yahoo.com
Message 8
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| Subject: | Re: Dual Elevator Cables |
Dana Hague wrote:
> At 06:21 PM 12/3/2006, pat ladd wrote:
>
>> In the States you seem to be in the position that you can change much
>> more in the design without permission than we are in the UK. Is that
>> good or bad? I don`t know. I would like to be able to change a prop.
>> or an engine or fiddle with the dihedral or extend the undercarriage
>> legs without getting approval but I have no expertise and the fact
>> that I am willig to take a chance on killing myself should not
>> entitle me to hazard some innocent bystander. We are working slowly
>> towards your approach and I suspect that in time we shall arrive at
>> some middle point.
>
>
> Pat, there are two sets of regs here. If it's two seats, or over 254
> lbs, factory built you can't change much; homebuilt, you have to
> register it as experimental and go through inspections, test flying in
> a restricted area, etc. You can change pretty much anything when you
> build it but you still have to get it approved for flight.
>
> If it's under 254 lbs and single seat (i.e. ultralight), you can do
> virtually anything... but the ultralight regs prohibit you from
> flying, at ANY altitude, over any congested area or open air assembly
> of persons. So our regs DO protect the innocent bystander either way,
> but you're free to kill yourself flying solo.
>
> -Dana
> --
> --
> For every new foolproof invention there is a new and improved fool.
> For Pat, just a little bit of extra clarification on the Experimental
> Homebuilt vs. U. S. 'Part 103' (of the FAA regs) Ultralite regs:
Under 254 lbs, 1 seat, less than 5 gal fuel capacity, under 55kts top
speed, less than 24 kts stall speed can qualify as a Part 103 Ultralite
& there is no registration, training, reporting, maintenance/inspection
schedule etc required.
http://www.ccnow.com/cgi-local/sc_cart.cgi?2170208198401745
You can register one of these as an Experimental Homebuilt if it wasn't
built commercially (meaning 51% was built for personal education or
recreation) just like larger homebuilts, but I don't know why anyone would.
Experimental Homebuilts can be virtually any size/weight/speed/number of
seats but must meet the 51% rule above. These must be registered & get
registration numbers just like factory built planes. The rules say no
flight over densely populated areas 'except in the process of takeoff or
landing' but these days this is largely a political thing to keep the
masses from complaining. Air traffic control will often route you
directly over a major city if you ask to transistion their airspace
while on a cross-country, if it keeps you out of the way of traffic at
their airport. *Anyone* (even a dog or a chimp) can make *any* repair or
modification to an Experimental Homebuilt. If it's considered to be a
'major' modification, the owner must notify the FAA of the change & get
a test area approved for 5 hours of flight test time after the mod.
Details on the test proceedure after a mod vary slightly depending on
the rules in effect when the plane got its original Operating
Limitations, but you get the idea. Experimentals must be inspected once
a year by either someone with an airframe & powerplant ticket from the
FAA, or by the holder of the Repairman's Certificate for that particular
plane (meaning the builder). You've got to have the word 'Experimental'
in big letters in the cockpit so any passenger is expected to know he's
taking his life in his hands if he gets in the plane. In the USA, even
with 300 million people the odds of hitting anyone on the ground are
almost unmeasurably small. These are very good rules, just like the
provision in our constitution that guarantees us the right to 'keep and
bear arms', which was put in place to allow us to protect ourselves from
a corrupt government, even if it's our own.
Hope this helps...
Charlie
flying my 4th (purchased) homebuilt, building another
Message 9
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| Subject: | Massey Aero 6th Annual Open Hangar Day |
Hi Terry (FireFly),
Was glad to see that you and Wilmar were able to fly in to the event on
Sunday 12/03/06. Wish I had done so. Earlier in the week they were predicting
high winds, but fortunately that changed and the day was really pretty good,
although a little on the cold side. I saw that you had dressed warmly, but
with the short windshield, do you still get cold? I cannot stand the cold
anymore. Maybe age has something to do with it. I do have a full coverage
canopy, but had removed the side/rear windows for the summer and because we've
been having a warm fall, I haven't installed them yet. But now I believe winter
is here, so next time I fly, they'll be on. Hope to see you again at
Homers, if that visit becomes a reality.
Bill Varnes
Original Kolb FireStar
Audubon NJ
Do Not Archive
Message 10
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| Subject: | Re: Repairman course |
Thanks! :D
--------
-Erik Grabowski
Kolb Firestar N197BG
CFI/CFII/LS-I
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=79189#79189
Message 11
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At 12:48 PM 12/3/06 -0600, you wrote:
>
>> By reducing the water surface tension, the
>> bubbles break away from the metal surface earlier in their formation
>> allowing liquid water to re-attach to the surface and improves heat flow.
>
>If you're running a pressure coolant system that gets hot enough
>to form bubbles in operation........
Jim,
There is a temperature drop across the cylinder and head surface walls to
the water. The reason for this due to the fact that the thermal
conductivity or heat transfer rate of aluminum is about 250 times greater
than that for water. So steam bubbles will form on the high temperature
aluminum surface even though the apparent water temperature is much less
than the water boiling temperature. As the steam bubbles migrate further
away from the aluminum surface hot spot into the cooler water they
collapse.
This can easily be shown. Place a small pan filled with about two inches of
cold water on a stove. Turn on the burner to a medium heat. Hold a candy
thermometer so that the bulb is about one inch below the waters surface.
Watch the bottom of the pan. In a few minutes you will notice small steam
bubbles forming on the bottom of the pan. The thermometer will read about
100 degrees F. To form the steam bubbles, the metal to water interface has
to be at least 212 degrees F.
Jack B. Hart FF004
Winchester, IN
Message 12
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| Subject: | Registering ultralights |
Changed thread title -
I had to register a legal ultralight to make life simpler. Airstrip was
inside the class D (back then it was the control zone) and getting
permission to go in and out I was always jumping through hoops. Put an N
number on it and demanded (and got) the same treatment as the big boys. End
of problems.
Richard Pike
MKIII N420P (420ldPoops)
do not archive
----- Original Message -----
From: "Charlie England" <ceengland@bellsouth.net>
Sent: Sunday, December 03, 2006 11:01 PM
Subject: Re: Kolb-List: Dual Elevator Cables
<snip>
>> For Pat, just a little bit of extra clarification on the Experimental
>> Homebuilt vs. U. S. 'Part 103' (of the FAA regs) Ultralite regs:
>
> Under 254 lbs, 1 seat, less than 5 gal fuel capacity, under 55kts top
> speed, less than 24 kts stall speed can qualify as a Part 103 Ultralite &
> there is no registration, training, reporting, maintenance/inspection
> schedule etc required.
>
> http://www.ccnow.com/cgi-local/sc_cart.cgi?2170208198401745
>
> You can register one of these as an Experimental Homebuilt if it wasn't
> built commercially (meaning 51% was built for personal education or
> recreation) just like larger homebuilts, but I don't know why anyone
> would.
> >
<snip>
Message 13
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| The thermometer will read about
| 100 degrees F. To form the steam bubbles, the metal to water
interface has
| to be at least 212 degrees F.
|
| Jack B. Hart FF004
Jack/Gang:
Would you get the same results with a water pump rapidly circulating
the water?
john h
mkIII
Message 14
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X-mailer: Pegasus Mail for Windows (4.41)
> >
> >> By reducing the water surface tension, the
> >> bubbles break away from the metal surface earlier in their formation
> >> allowing liquid water to re-attach to the surface and improves heat flow.
> >
> >If you're running a pressure coolant system that gets hot enough
> >to form bubbles in operation........
>
> Jim,
>
> There is a temperature drop across the cylinder and head surface walls to
> the water. The reason for this due to the fact that the thermal
> conductivity or heat transfer rate of aluminum is about 250 times greater
> than that for water. So steam bubbles will form on the high temperature
> aluminum surface even though the apparent water temperature is much less
> than the water boiling temperature. As the steam bubbles migrate further
> away from the aluminum surface hot spot into the cooler water they
> collapse.
>
> This can easily be shown. Place a small pan filled with about two inches of
> cold water on a stove. Turn on the burner to a medium heat. Hold a candy
> thermometer so that the bulb is about one inch below the waters surface.
> Watch the bottom of the pan. In a few minutes you will notice small steam
> bubbles forming on the bottom of the pan. The thermometer will read about
> 100 degrees F. To form the steam bubbles, the metal to water interface has
> to be at least 212 degrees F.
You're talking about nucleation which is pressure dependent. As
an example, at the recommended 1.2 Bar pressure of a closed
Rotax cooling system (1.18 atm, or 900 mm/Hg) the boiling
point of pure water is raised to 104.75C, 220.46F, clearly not the
212F you cite in the open pan. Add ethylene glycol at 50/50 and
the temp goes up even further, my calcs show about 231F at 1.2
Bar. There is some evidence, however, that small bubbles may
promote heat transfer but most of that work was done under
microgravity conditions and not 1g conditions.
Jim Baker
580.788.2779
Elmore City, OK
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