Today's Message Index:
----------------------
1. 02:29 AM - Re: Kolb-List Digest: 7 Msgs - 10/04/11 (Ted)
2. 10:48 AM - Re: A Visionary with a Far Reaching Mind (Dennis Thate)
3. 12:49 PM - Re: Anyone check for carbon monoxide? (Gary Aman)
4. 01:39 PM - Breeze up the boom tube (Richard Girard)
5. 02:03 PM - Re: Breeze up the boom tube (b young)
6. 02:17 PM - Re: Breeze up the boom tube (Thom Riddle)
7. 02:54 PM - Re: Anyone check for carbon monoxide? (robert bean)
8. 04:00 PM - Re: Breeze up the boom tube (b young)
9. 04:53 PM - Strut Fairings (FIRESTARII)
10. 04:56 PM - Re: Breeze up the boom tube (SS568)
11. 05:11 PM - Re: Breeze up the boom tube (Thom Riddle)
12. 05:11 PM - EIS and In Flight Adjustable IVO prop Wanted! (FIRESTARII)
13. 05:14 PM - Re: Strut Fairings (John Hauck)
14. 05:32 PM - New Firefly owner looking for Mark III training in PA (mburdge39)
15. 05:41 PM - Re: Strut Fairings (Dennis Thate)
16. 05:55 PM - Re: EIS and In Flight Adjustable IVO prop Wanted! (Herb Gayheart)
17. 06:25 PM - Re: Re: Strut Fairings (David Kulp)
18. 07:22 PM - Re: Breeze up the boom tube (Richard Girard)
19. 07:25 PM - Re: Re: Breeze up the boom tube (Richard Girard)
20. 07:40 PM - Re: Strut Fairings (Richard Girard)
21. 08:03 PM - Re: Breeze up the boom tube (Richard Pike)
22. 08:06 PM - Re: Strut Fairings (Richard Pike)
Message 1
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| Subject: | Re: Kolb-List Digest: 7 Msgs - 10/04/11 |
When i put my back windows in i feel trapped. I mean like if i ever rolled over
i could not get out. Exhaust mounted high on my 912ul powered slingshot. Zoom
zoom. Ted cowan alabama
Sent from my iPhone
On Oct 5, 2011, at 1:58 AM, Kolb-List Digest Server <kolb-list@matronics.com> wrote:
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete Kolb-List Digest can also be found in either of the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
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> such as Notepad or with a web browser.
>
> HTML Version:
>
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>
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>
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>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> Kolb-List Digest Archive
> ---
> Total Messages Posted Tue 10/04/11: 7
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 08:22 AM - Fall Harvest.... or (Dennis Thate)
> 2. 08:32 AM - Re: Reklaw Fly-in anyone? (stogie6)
> 3. 08:41 AM - Re: Reklaw Fly-in anyone? (Mic)
> 4. 02:01 PM - Anyone check for carbon monoxide? (McCarthy Tom)
> 5. 02:14 PM - Kolb website (McCarthy Tom)
> 6. 03:13 PM - Re: Anyone check for carbon monoxide? (Ellery Batchelder Jr)
> 7. 03:22 PM - Re: Anyone check for carbon monoxide? (Thom Riddle)
>
>
>
> ________________________________ Message 1 _____________________________________
>
>
> Time: 08:22:38 AM PST US
> Subject: Kolb-List: Fall Harvest.... or
> From: "Dennis Thate" <retroman@frontier.com>
>
>
> Better know as: The removal or lowering of existing obstacles to safety.
>
> --------
> Both optimists and pessimists contribute to our society. The optimist invents
> the airplane and the pessimist the parachute. ~Gil Stern
>
> These flying machines are just a fad and will never catch on Unknown
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=354010#354010
>
>
> Attachments:
>
> http://forums.matronics.com//files/dscn0340_892.jpg
>
>
> ________________________________ Message 2 _____________________________________
>
>
> Time: 08:32:36 AM PST US
> Subject: Kolb-List: Re: Reklaw Fly-in anyone?
> From: "stogie6" <djones@fisherarnold.com>
>
>
> I read today that the Reklaw fly-in will be canceled due to the fire potential
> in the NE Texas area. Sorry fellas.
>
> --------
> David F. Jones
> Kolb KXP
> N71RB
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=354013#354013
>
>
> ________________________________ Message 3 _____________________________________
>
>
> Time: 08:41:13 AM PST US
> Subject: Kolb-List: Re: Reklaw Fly-in anyone?
> From: "Mic" <miceire@gmail.com>
>
>
> Thanks for the update. I too received an email from Marsha in this regard. I
will
> be visiting family in the San Antonio area anyway. I was hoping too see some
> Kolbs there. So if any of you are anywhere near San Antonio and would like
> to show off your MKIII send me a private email and my son and I will pay you
> a visit between October 15-23.
>
> do not archive
>
> --------
> Mic
> "It is far better to grasp the universe as it really is than to persist
in
> delusion, however satisfying and reassuring."
> Carl Sagan
>
> "Education is not filling a bucket, but lighting a fire."
> W.B. Yeats
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=354017#354017
>
>
> ________________________________ Message 4 _____________________________________
>
>
> Time: 02:01:38 PM PST US
> From: McCarthy Tom <mccarthy@jefnet.com>
> Subject: Kolb-List: Anyone check for carbon monoxide?
>
>
> I put my back windows on the Slingshot last week, and soon after thought I could
> smell something while flying. I have a battery powered carbon monoxide detector
> in my Zenith, so I took it flying and was surprised to find a low level that
> was constant inside. I thought it was the breather from the oil container
> (HKS), so I rerouted it out through the bottom of the boom tube, but did not
> get better. My exhaust runs down along the back of the fuselage and exits on
an
> angle just above the boom tube. I wonder if a vacuum is occurring and somehow
> pulling exhaust forward?
> How many people have checked for carbon monoxide? It sure is not something I
thought
> to be concerned with having a pusher behind me. Any thoughts would be
> appreciated.
>
> Tom McCarthy
> Zenith 601HD
> Kolb Slingshot
> Kolb Firestar
>
>
> ________________________________ Message 5 _____________________________________
>
>
> Time: 02:14:32 PM PST US
> From: McCarthy Tom <mccarthy@jefnet.com>
> Subject: Kolb-List: Kolb website
>
> I went on the new Kolb website the other day and found me and my plane
> on the home page, and again in the Slingshot section. Pictures were
> taken from Oshkosh a few months back, not sun and fun as listed. I'm
> happy they thought my plane was worthy. I have been flying it quite a
> bit since the HKS install. It sure is good on fuel, especially for the
> performance it gives.
>
>
> Tom McCarthy
> Zenith 601HD
> Kolb Slingshot
> Kolb Firestar
>
> ________________________________ Message 6 _____________________________________
>
>
> Time: 03:13:46 PM PST US
> Subject: Re: Kolb-List: Anyone check for carbon monoxide?
> From: Ellery Batchelder Jr <elleryweld@aol.com>
>
>
> every Kolb I have flown always had a draft coming in through the boom tube
> you could be getting exhaust through it but you
> can slow it down by placing a big piece of foam rubber inside the tube near
> the tail end
>
>
> Ellery Batchelder Jr.
>
>
> -----Original Message-----
> From: McCarthy Tom <mccarthy@jefnet.com>
> Sent: Tue, Oct 4, 2011 5:01 pm
> Subject: Kolb-List: Anyone check for carbon monoxide?
>
>
> I put my back windows on the Slingshot last week, and soon after thought I
> could
> mell something while flying. I have a battery powered carbon monoxide dete
> ctor
> n my Zenith, so I took it flying and was surprised to find a low level that
> was
> onstant inside. I thought it was the breather from the oil container (HKS)
> , so
> rerouted it out through the bottom of the boom tube, but did not get bette
> r.
> y exhaust runs down along the back of the fuselage and exits on an angle ju
> st
> bove the boom tube. I wonder if a vacuum is occurring and somehow pulling
>
> xhaust forward?
> ow many people have checked for carbon monoxide? It sure is not something
> I
> hought to be concerned with having a pusher behind me. Any thoughts would
> be
> ppreciated.
> Tom McCarthy
> enith 601HD
> olb Slingshot
> olb Firestar
> -= - The Kolb-List Email Forum -
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>
> ________________________________ Message 7 _____________________________________
>
>
> Time: 03:22:11 PM PST US
> From: Thom Riddle <riddletr@gmail.com>
> Subject: Re: Kolb-List: Anyone check for carbon monoxide?
>
> Tom,
> My engine and exhaust are different than yours. I've never checked the CO
> in my Slingshot but ALWAYS fly with the vents in the aft windows open in
> such a way that air is sucked out through those vents, to avoid any possible
> CO accumulation. In warm weather, I also pressurize the cabin by opening the
> forward vents such that they grab the airflow directing it toward me, plus
> adding positive pressure to the cabin.
>
>
> On Tue, Oct 4, 2011 at 4:58 PM, McCarthy Tom <mccarthy@jefnet.com> wrote:
>
>>
>> I put my back windows on the Slingshot last week, and soon after thought I
>> could smell something while flying. I have a battery powered carbon
>> monoxide detector in my Zenith, so I took it flying and was surprised to
>> find a low level that was constant inside. I thought it was the breather
>> from the oil container (HKS), so I rerouted it out through the bottom of the
>> boom tube, but did not get better. My exhaust runs down along the back of
>> the fuselage and exits on an angle just above the boom tube. I wonder if a
>> vacuum is occurring and somehow pulling exhaust forward?
>> How many people have checked for carbon monoxide? It sure is not something
>> I thought to be concerned with having a pusher behind me. Any thoughts
>> would be appreciated.
>>
>> Tom McCarthy
>> Zenith 601HD
>> Kolb Slingshot
>> Kolb Firestar
>>
>>
>
>
>
>
>
>
>
>
Message 2
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| Subject: | Re: A Visionary with a Far Reaching Mind |
.............................Going Green.......................
http://news.yahoo.com/blogs/technology-blog/electric-airplane-wins-big-money-224503447.html
http://news.yahoo.com/blogs/technology-blog/electric-airplane-wins-big-money-224503447.html
http://www.wired.com/autopia/2011/10/electric-airplane-wins-1-35-million-prize-from-nasa/
--------
Both optimists and pessimists contribute to our society. The optimist invents
the airplane and the pessimist the parachute. ~Gil Stern
These flying machines are just a fad and will never catch on Unknown
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=354093#354093
Attachments:
http://forums.matronics.com//files/pipistrelelectric_660x441_968.jpg
Message 3
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| Subject: | Re: Anyone check for carbon monoxide? |
The air comes up the tube like you have a leaf blower back there.I have a
6" thick foam plug in my boom tube.That handles it.
G.Aman Mk3c jabiru
-----Original Message-----
From: McCarthy Tom <mccarthy@jefnet.com>
Sent: Tue, Oct 4, 2011 5:01 pm
Subject: Kolb-List: Anyone check for carbon monoxide?
I put my back windows on the Slingshot last week, and soon after thought I
could
smell something while flying. I have a battery powered carbon monoxide det
ector
in my Zenith, so I took it flying and was surprised to find a low level tha
t was
constant inside. I thought it was the breather from the oil container (HKS
), so
I rerouted it out through the bottom of the boom tube, but did not get bett
er.
My exhaust runs down along the back of the fuselage and exits on an angle j
ust
above the boom tube. I wonder if a vacuum is occurring and somehow pulling
exhaust forward?
How many people have checked for carbon monoxide? It sure is not something
I
thought to be concerned with having a pusher behind me. Any thoughts would
be
appreciated.
Tom McCarthy
Zenith 601HD
Kolb Slingshot
Kolb Firestar
Message 4
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| Subject: | Breeze up the boom tube |
Some time back I did an experiment to find the answer to the question of
just how much air is flowing back up the boom tube of my Mk III. The post
that describes what I did is in the archives, but as a rule of thumb you can
figure that whatever your airspeed the air coming back up the boom tube is
half that. For example, at an indicated airspeed of 80 mph the draft coming
up the boom into the cockpit was 40 mph IAS.
Rick Girard
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 5
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| Subject: | Re: Breeze up the boom tube |
Some time back I did an experiment to find the answer to the question of
just how much air is flowing back up the boom tube of my Mk III. The
post that describes what I did is in the archives, but as a rule of
thumb you can figure that whatever your airspeed the air coming back up
the boom tube is half that. For example, at an indicated airspeed of 80
mph the draft coming up the boom into the cockpit was 40 mph IAS.
Rick Girard
>>>>>>>>>>>>>>>>>>>
when I built the mkiii. I heat formed a piece of fabric to fit inside
the rear of the tube, just ahead of the elevator bell crank. then I
glued it in place with polly tack. I then cut small slits in it for the
elevator and rudder cables. I think if I was doing it again. I would
take one inch of the 6 inch tube, split it to fit it inside the main
tube. then glue the fabric to the outside of the 1 inch piece , then
slid it in the tail boom tube. that way it would have been removable
if the need presented itself. that stops the wind movement, I don't
know if it would stop critters or not. I suppose you could do it with
some screen wire, then cover that with the fabric, the fabric would
create an anti chafe buffer to the screen wire and the boom tube,
Boyd young
mkiii utah
Message 6
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| Subject: | Re: Breeze up the boom tube |
Rick,
That is an interesting observation. I have never noticed any reverse airflow
up my Slingshot's tail but that does not mean it isn't there. IF that
phenomenon is not characteristic of the SS but is for most Kolbs I speculate
that it might be caused, or at least influenced by the relative positions of
the horizontal stabilizer and boom tube. On most Kolbs the leading edge of
the HS is well above the centerline of the boom tube, whereas on the SS it
is even with (parallel) with the boom tube. There could be other factors
too. I am not even sure what would be an easy way to detect/measure this
reverse airflow up my SS tail. If it is dramatic as you say on my SS, I
would think it would be obvious to me, but it is not at all. How did you
determine the speed of roughly half of forward speed? Is it something I
could easily replicate on my SS?
Thom
On Oct 5, 2011, at 4:42 PM, Richard Girard <aslsa.rng@gmail.com> wrote:
Some time back I did an experiment to find the answer to the question of
just how much air is flowing back up the boom tube of my Mk III. The post
that describes what I did is in the archives, but as a rule of thumb you can
figure that whatever your airspeed the air coming back up the boom tube is
half that. For example, at an indicated airspeed of 80 mph the draft coming
up the boom into the cockpit was 40 mph IAS.
Rick Girard
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
*
*
Message 7
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| Subject: | Re: Anyone check for carbon monoxide? |
The configuration of your cabin has something to do with it. The
shuttlecock shape (birdie in polite society) creates
all kinds of strange airflows. In my case I was smelling oil sump fumes
which I 95% eliminated by routing a vent line to just behind
and higher than the prop flange. Those fumes get very well distributed.
BB
MkIII, suzuki
On 5, Oct 2011, at 3:46 PM, Gary Aman wrote:
> The air comes up the tube like you have a leaf blower back there.I
have a 6" thick foam plug in my boom tube.That handles it.
> G.Aman Mk3c jabiru
>
> -----Original Message-----
> From: McCarthy Tom <mccarthy@jefnet.com>
> To: kolb-list <kolb-list@matronics.com>
> Sent: Tue, Oct 4, 2011 5:01 pm
> Subject: Kolb-List: Anyone check for carbon monoxide?
>
>
> I put my back windows on the Slingshot last week, and soon after
thought I could
> smell something while flying. I have a battery powered carbon
monoxide detector
> in my Zenith, so I took it flying and was surprised to find a low
level that was
> constant inside. I thought it was the breather from the oil container
(HKS), so
> I rerouted it out through the bottom of the boom tube, but did not get
better.
> My exhaust runs down along the back of the fuselage and exits on an
angle just
> above the boom tube. I wonder if a vacuum is occurring and somehow
pulling
> exhaust forward?
> How many people have checked for carbon monoxide? It sure is not
something I
> thought to be concerned with having a pusher behind me. Any thoughts
would be
> appreciated.
>
> Tom McCarthy
> Zenith 601HD
> Kolb Slingshot
> Kolb Firestar
>
> get="_blank">http://www.matronics.com/Navigator?Kolb-List
> tp://forums.matronics.com
> _blank">http://www.matronics.com/contribution
>
>
>
>
>
>
Message 8
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| Subject: | Re: Breeze up the boom tube |
Rick,
That is an interesting observation. I have never noticed any reverse
airflow up my Slingshot's tail but that does not mean it isn't there. IF
that phenomenon is not characteristic of the SS but is for most Kolbs I
speculate that it might be caused, or at least influenced by the
relative positions of the horizontal stabilizer and boom tube. On most
Kolbs the leading edge of the HS is well above the centerline of the
boom tube, whereas on the SS it is even with (parallel) with the boom
tube. There could be other factors too. I am not even sure what would be
an easy way to detect/measure this reverse airflow up my SS tail. If it
is dramatic as you say on my SS, I would think it would be obvious to
me, but it is not at all. How did you determine the speed of roughly
half of forward speed? Is it something I could easily replicate on my
SS?
Thom
>>>>>>>>>>>>>>>>
i think the direction of wind flow in the boom tube has more to do with
the configuration of the cabin area, and whether it has a high or low
pressure, this would be determined mostly by how the rear of the cabin
is closed in. or lack their of. all things being equal. the air going
past the back of the boom tube should pull a negative pressure on the
rear of the tube. but if there is a larger negative pressure caused
by the cabin enclosure, then the flow would be forward.
boyd young
mkiii ut
Message 9
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:D [Shocked] WOW Guys and Gals! When I purchased my FSII it came with two sets
of wing struts, one with fairings and one without. The struts with the fairings
were off a FS that went into the intra coastal water ways, thus salt water.
I was very leery of that so I was not comfortable using them so I have
been flying with the non-faired struts. I was however curious as to what impact
they would actually have. So I removed the fairings from the struts and installed
them on the ones I have been flying with. I just landed after an hour
and a half flight with them installed and WOW is all I can say! Very much to
my surprise they made an ENORMOUS difference! The airplane was way smoother
cruised a good 10 MPH indicated better. The biggest surprise was in glide, best
glide, best as I can figure based purely on feel is about 45-48 indicated.
The difference was astonishing, at lest to me! In a totally non scientific,
seat of the pants, guess, I bet it was 30% farther. Now mind you I am guessing
here but to not only see, but feel a difference so significant just amazed
me. I'll never fly with out them again! Cruise speed to jumped a good 10MPH
at 5500 and the airplane just "Felt" smoother to me. WOW! Any way I just thought
I would let every body know what a difference it made on my airplane and
highly recommend them to any one not currently using them! Let me know if you
guys have seen such a difference and what else you can recommend to further
improve my FSII. Fly safe and have fun every body!
--------
Low and Slow FireStar II
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=354135#354135
Message 10
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| Subject: | Re: Breeze up the boom tube |
Interesting about the tail draft. I have been trying to figure why my air speed
reads about half.
Could this tube draft be causing my air speed to be off?
David d.
--------
Kolb Mark IIIX 582 Blue head
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=354136#354136
Message 11
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| Subject: | Re: Breeze up the boom tube |
Boyd,
You are probably correct. Although I've flown a MkIII several times I've
never owned one or flown one enough to get to the point that I notice that
sort of thing. All my KOLB ownership experience is in Firestars and the
Slingshot, both narrow bodied which have not shown the sucking tail
syndrome, at least to a degree sufficient to get my attention.
Thom
On Oct 5, 2011, at 7:02 PM, "b young" <byoungplumbing@gmail.com> wrote:
Rick,
That is an interesting observation. I have never noticed any reverse airflow
up my Slingshot's tail but that does not mean it isn't there. IF that
phenomenon is not characteristic of the SS but is for most Kolbs I speculate
that it might be caused, or at least influenced by the relative positions of
the horizontal stabilizer and boom tube. On most Kolbs the leading edge of
the HS is well above the centerline of the boom tube, whereas on the SS it
is even with (parallel) with the boom tube. There could be other factors
too. I am not even sure what would be an easy way to detect/measure this
reverse airflow up my SS tail. If it is dramatic as you say on my SS, I
would think it would be obvious to me, but it is not at all. How did you
determine the speed of roughly half of forward speed? Is it something I
could easily replicate on my SS?
Thom
>>>>>>>>>>>>>>>>
i think the direction of wind flow in the boom tube has more to do with the
configuration of the cabin area, and whether it has a high or low pressure,
this would be determined mostly by how the rear of the cabin is closed in.
or lack their of. all things being equal. the air going past the back of
the boom tube should pull a negative pressure on the rear of the tube.
but if there is a larger negative pressure caused by the cabin enclosure,
then the flow would be forward.
boyd young
mkiii ut
*
*
Message 12
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| Subject: | EIS and In Flight Adjustable IVO prop Wanted! |
:D Hi guys and gals, sorry I forgot to post in this in the "Strut" post. I am
looking for a good used EIS for my 503DCDI. Remember I am a professional pilot
so I have limited funds and even at 3 gallons an hour the fuel is killing me.
Also a while ago I made a post about a variable pitch set up for my IVO three
blade prop and some body replied that they have a used one for sale. I have
not been able to reach that person so if he, and or anybody with that set up
could get ahold of me I would be very grateful. Happy flying enjoy and be safe!
--------
Low and Slow FireStar II
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Let me know if you guys have seen such a difference and what else you can
recommend to further improve my FSII. Fly safe and have fun every body!
--------
Low and Slow FireStar II
Folks:
I was also surprised after Brother Jim fabricated me a pair of lift struts
from 4130 streamlined tubing. Improvements were amazing. Most notable was
elimination of lift strut vibration in flight.
This was 1987 and my Firestar which had no brakes. Flying off my 650 foot
grass strip, at that time, I had trouble getting the Firestar slowed down
before I ran out of airstrip. The improved lift struts necessitated brakes.
I had flown the Firestar a couple years without brakes, making flights to
Miami, FL, and The Flight Farm near Monterey, NY.
The Firestar was much cleaner with improved glide.
john h
mkIII
7 miles south of Burns Junction, Oregon.
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| Subject: | New Firefly owner looking for Mark III training in PA |
Hello! I am picking up a firefly this weekend and was hoping somebody could help
me find an instructor with a Mark III. I live in n.w. PA. Any help would be
appreciated!
Mike
--------
Mike
Firefly
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| Subject: | Re: Strut Fairings |
http://www.youtube.com/watch?v=ftq8jTQ8ANE
--------
Both optimists and pessimists contribute to our society. The optimist invents
the airplane and the pessimist the parachute. ~Gil Stern
These flying machines are just a fad and will never catch on Unknown
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| Subject: | Re: EIS and In Flight Adjustable IVO prop Wanted! |
I have a three blade in air adjustable IVO for sale...Half
retail...fits 503 and 582.. Herb
At 07:05 PM 10/5/2011, you wrote:
>
>:D Hi guys and gals, sorry I forgot to post in this in the "Strut"
>post. I am looking for a good used EIS for my 503DCDI. Remember I
>am a professional pilot so I have limited funds and even at 3
>gallons an hour the fuel is killing me. Also a while ago I made a
>post about a variable pitch set up for my IVO three blade prop and
>some body replied that they have a used one for sale. I have not
>been able to reach that person so if he, and or anybody with that
>set up could get ahold of me I would be very grateful. Happy flying
>enjoy and be safe!
>
>--------
>Low and Slow FireStar II
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=354137#354137
>
>
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| Subject: | Re: Strut Fairings |
Dennis,
The vid may be old, but it sure tells the story! Thanks for posting it.
And to Henry, the fellow from HI who sent the gorgeous photo and was
interested in converting from two struts to one on his FF, I measured
the dimensions of the struts that were installed on mine and they are
about 1" at the thickest point (although without a micrometer it's just
a bit difficult to be 100% accurate with the attaching mechanism on the
end interfering with the tape) and they're 2 3/8" front to rear.
Hope that helps.
Dave Kulp
Bethlehem, PA
FireFly 11DMK
On 10/5/2011 8:39 PM, Dennis Thate wrote:
> --> Kolb-List message posted by: "Dennis Thate"<retroman@frontier.com>
>
> http://www.youtube.com/watch?v=ftq8jTQ8ANE
>
> --------
> Both optimists and pessimists contribute to our society. The optimist invents
the airplane and the pessimist the parachute. ~Gil Stern
>
> These flying machines are just a fad and will never catch on Unknown
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=354144#354144
>
>
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| Subject: | Re: Breeze up the boom tube |
I have a Winter ASI for which I made a pitot probe with about 3' of vinyl
tube and 2' of aluminum tube. I took it out in my wife's car and stuck it
out through the sunroof to calibrate it. Then I positioned it with the probe
going back up the boom and went flying. I have lot's of cockpit vents in my
Mk III, deliberate and not so and there's no seal at the top of the
windscreen. The result is that there's a lot of airflow to create a negative
pressure differential in the cabin to suck air in from the boom. That's my
theory, anyway.
Rick
On Wed, Oct 5, 2011 at 4:14 PM, Thom Riddle <riddletr@gmail.com> wrote:
> Rick,
>
> That is an interesting observation. I have never noticed any reverse
> airflow up my Slingshot's tail but that does not mean it isn't there. IF
> that phenomenon is not characteristic of the SS but is for most Kolbs I
> speculate that it might be caused, or at least influenced by the relative
> positions of the horizontal stabilizer and boom tube. On most Kolbs the
> leading edge of the HS is well above the centerline of the boom tube,
> whereas on the SS it is even with (parallel) with the boom tube. There could
> be other factors too. I am not even sure what would be an easy way to
> detect/measure this reverse airflow up my SS tail. If it is dramatic as you
> say on my SS, I would think it would be obvious to me, but it is not at all.
> How did you determine the speed of roughly half of forward speed? Is it
> something I could easily replicate on my SS?
>
> Thom
>
> On Oct 5, 2011, at 4:42 PM, Richard Girard <aslsa.rng@gmail.com> wrote:
>
> Some time back I did an experiment to find the answer to the question of
> just how much air is flowing back up the boom tube of my Mk III. The post
> that describes what I did is in the archives, but as a rule of thumb you can
> figure that whatever your airspeed the air coming back up the boom tube is
> half that. For example, at an indicated airspeed of 80 mph the draft coming
> up the boom into the cockpit was 40 mph IAS.
>
> Rick Girard
>
>
> --
> Zulu Delta
> Mk IIIC
> Thanks, Homer GBYM
>
> It isn't necessary to have relatives in Kansas City in order to be unhappy.
> - Groucho Marx
>
>
> *
>
> href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics.com/Navigator?Kolb-Listrums.matronics.com">http://forums.matronics.com
> "http://www.matronics.com/contribution">http://www.matronics.com/contribution
> *
>
> *
>
> *
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 19
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| Subject: | Re: Breeze up the boom tube |
Yes, if you have no static source hooked up to your ASI (and assuming you
need one, my little Winter that I used for testing doesn't have a static
port).
Rick Girard
On Wed, Oct 5, 2011 at 6:53 PM, SS568 <david@paulowniatrees.com> wrote:
>
> Interesting about the tail draft. I have been trying to figure why my air
> speed reads about half.
> Could this tube draft be causing my air speed to be off?
> David d.
>
> --------
> Kolb Mark IIIX 582 Blue head
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=354136#354136
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 20
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| Subject: | Re: Strut Fairings |
FirestarII, Take a look at the video here and you can see how the vortex
street behind a round tube grows.
http://en.wikipedia.org/wiki/K%C3%A1rm%C3%A1n_vortex_street
Rick Girard
On Wed, Oct 5, 2011 at 6:51 PM, FIRESTARII <CCMFarms@aol.com> wrote:
>
> :D [Shocked] WOW Guys and Gals! When I purchased my FSII it came with
> two sets of wing struts, one with fairings and one without. The struts
> with the fairings were off a FS that went into the intra coastal water ways,
> thus salt water. I was very leery of that so I was not comfortable using
> them so I have been flying with the non-faired struts. I was however
> curious as to what impact they would actually have. So I removed the
> fairings from the struts and installed them on the ones I have been flying
> with. I just landed after an hour and a half flight with them installed and
> WOW is all I can say! Very much to my surprise they made an ENORMOUS
> difference! The airplane was way smoother cruised a good 10 MPH indicated
> better. The biggest surprise was in glide, best glide, best as I can
> figure based purely on feel is about 45-48 indicated. The difference was
> astonishing, at lest to me! In a totally non scientific, seat of the pants,
> guess, I bet it was 30% farther.!
> Now mind you I am guessing here but to not only see, but feel a
> difference so significant just amazed me. I'll never fly with out them
> again! Cruise speed to jumped a good 10MPH at 5500 and the airplane just
> "Felt" smoother to me. WOW! Any way I just thought I would let every body
> know what a difference it made on my airplane and highly recommend them to
> any one not currently using them! Let me know if you guys have seen such a
> difference and what else you can recommend to further improve my FSII. Fly
> safe and have fun every body!
>
> --------
> Low and Slow FireStar II
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=354135#354135
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 21
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| Subject: | Re: Breeze up the boom tube |
No hard data, but in the winter the cold air coming out the boom tube opening was
freezing me. I cut a round piece of foam with slots for the cables and stuck
it in the tube at the front end and it improved things immeasurably.
For what it's worth...
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
richard (at) bcchapel(dot)org
Kingsport, TN 3TN0
Now faith is the substance of things hoped for, the evidence of things not seen.
Hebrews 11:1
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| Subject: | Re: Strut Fairings |
Get yourself some of the plastic streamline fairing material that is intended to
fit over the lift struts and cut it to fit the landing ear legs. You will be
pleasantly surprised. It is worth the trouble.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
richard (at) bcchapel(dot)org
Kingsport, TN 3TN0
Now faith is the substance of things hoped for, the evidence of things not seen.
Hebrews 11:1
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