Today's Message Index:
----------------------
1. 08:11 AM - wing attach vector (robert bean)
2. 08:49 AM - Re: Re: Tail Wire Tangs Breaking And other Tail Brace (chris davis)
3. 09:00 AM - Re: Aging Kolbers (Thom Riddle)
4. 09:21 AM - Fw: Re: Tail Wire Tangs Breaking And other Tail Brace (chris davis)
5. 09:55 AM - Microbes in the fuel (pj.ladd)
6. 11:44 AM - Re: Re: Tail Wire Tangs Breaking And other Tail Brace (Jack B. Hart)
7. 01:27 PM - Re: Tail shaking (ces308)
8. 03:49 PM - Re: Re: Tail Wire Tangs Breaking And other Tail Brace (chris davis)
9. 04:17 PM - Sealing a Westach fuel gauge sender to a plastic tank (Richard Girard)
10. 05:46 PM - Re: Sealing a Westach fuel gauge sender to a plastic tank (R Harris)
11. 06:13 PM - Re: Re: Sealing a Westach fuel gauge sender to a plastic tank (Richard Girard)
12. 06:13 PM - rookie video (Jimmy Young)
13. 06:15 PM - Re: icom radio trouble (dalewhelan)
14. 06:23 PM - Re: Microbes in the fuel (John Hauck)
15. 06:35 PM - Re: Rotax 503 running problem (dalewhelan)
16. 06:38 PM - Re: rookie video (John Hauck)
17. 06:40 PM - Re: rookie video (Richard Pike)
18. 06:49 PM - Re: wing attach vector (dalewhelan)
19. 06:55 PM - Re: Re: Tail shaking (John Hauck)
20. 07:04 PM - Re: Re: wing attach vector (Richard Girard)
21. 07:05 PM - Re: Re: Rotax 503 running problem (Richard Girard)
22. 07:11 PM - Weight limit - Kolb Twinstar MKII (dutrac)
23. 07:53 PM - Re: rookie video (Larry Cottrell)
24. 08:03 PM - re kolb list wing attach vector. (b young)
25. 08:11 PM - Re: Weight limit - Kolb Twinstar MKII (gliderx5@comcast.net)
26. 08:21 PM - Summary of Kolb database, so far (Robert Laird)
27. 08:25 PM - Re: rookie video (Robert Laird)
28. 09:12 PM - Re: Rotax 503 running problem (dalewhelan)
Message 1
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| Subject: | wing attach vector |
Here's one to ponder. .. Maybe it has been covered before and I
missed it.
Assuming a compass of 360 degrees with 0/360 at the top and 90
outboard, where would the net
force be pushing on the front attach fitting? 325?
Jack Hart is our most analytical soul :)
BB
Message 2
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| Subject: | Re: Tail Wire Tangs Breaking And other Tail Brace |
Jack and Kolbers , I am just starting work on building-my tail on my Fire
fly I have the wings just about done- in Fl. but brought the tail section
back to Ma. with me,- -as I could.=0A---- My question to you a
ll that have built a Firefly is, when building the Horizontal stabilizer th
e inst. manual says to cut 2-, 6 inch pieces of 3/4 tube to incert in the
trailing edge- where the support cable bolts on, -then I look at the p
lans and they show the bolt for that cable in the center of the- 6 inch p
iece 12 1/2- inches for the end- then I look at the plans where it bsho
ws the cables etc. and- the bolt is at 12 inches ????????That being- I
look at the 2 pieces of 3/4 inch tubing with a very heavy wall , about 1/8
inch that are machined to fit inside 7/8 tubing and they are 4 inches ?-
maybe because they are heavy wall they didnt make them 6 inches ???? or per
haps they are for another application and-I am supposed to cut 2 , 6inch
pieces as it says in the manual ? does anybody know? Of course- I started
this on Sunday the day before Labor-Day so neither Travis or- Brian ar
e at work , but life goes on ! Thanks in advance-
ChrisChris Davis 58 thursday=0AKXP 503 492 hrs=0AGlider Pilot=0ADisabled f
rom crash building Firefly =0A=0A=0A=0A=0A________________________________
=0AFrom: Jack B. Hart <jbhart@onlyinternet.net>=0ATo: kolb-list@matronics.c
om=0ASent: Sunday, September 6, 2009 10:40:11 AM=0ASubject: Kolb-List: Re:
Tail Wire Tangs Breaking And other Tail Brace=0A=0A--> Kolb-List message po
sted by: "Jack B. Hart" <jbhart@onlyinternet.net>=0A=0ADate: Sun, 6 Sep 200
9 05:43:51 -0500=0AFrom: Richard Girard <aslsa.rng@gmail.com>=0A>=0AJack, T
hanks. One minor point. At least on my MkIII the tail wires are 3/32" =0A7
X 7 cable which has a breaking strength of 980 lb. My Firestar has the =0As
ame.=0A>=0A=0ARick,=0A=0AYou are quite right, I did not get the correct cab
le size.=0A=0AOne thing that the math does not provide is the load at which
the tail will =0Astall.- I believe it will stall long before six G's, an
d so the cable and =0Atangs will more than support the load.- The greates
t chance for failure =0Acomes from the added / superimposed load due to ove
-========================
============0A=0A=0A
Message 3
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| Subject: | Re: Aging Kolbers |
Since my last summation, three more have posted their ages. This will be my last
summation. I'm glad to see there are a good number of pre-senior Kolbers amongst
us but sure would like to see more.
53 responders
Eldest 83
Youngest 19
Mean 60.2
Median 60
Breakdown
[70+} 16
[60-69] 13
[50-59] 12
[40-49] 9
under 40 3
54.7% at 60+
45.3% under 60
Thanks to all for your participation.
--------
Thom Riddle
Buffalo, NY
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 66x34
A complex system that works is invariably found to have evolved from a simple system
that works.
- John Gaule
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261872#261872
Message 4
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| Subject: | Re: Tail Wire Tangs Breaking And other Tail Brace |
=0A-Chris Davis=0AKXP 503 492 hrs=0AGlider Pilot=0ADisabled from crash bu
ilding Firefly =0A=0A=0A=0A----- Forwarded Message ----=0AFrom: chris davis
<capedavis@yahoo.com>=0ATo: kolb-list@matronics.com=0ASent: Monday, Septem
ber 7, 2009 11:47:03 AM=0ASubject: Re: Kolb-List: Re: Tail Wire Tangs Break
ing And other Tail Brace=0A=0A=0AJack and Kolbers , I am just starting work
on building-my tail on my Firefly I have the wings just about done- in
Fl. but brought the tail section back to Ma. with me,- -as I could.=0A
---- My question to you all that have built a Firefly is, when buil
ding the Horizontal stabilizer the inst. manual says to cut 2-, 6 inch pi
eces of 3/4 tube to incert in the trailing edge- where the support cable
bolts on, -then I look at the plans and they show the bolt for that cable
in the center of the- 6 inch piece 12 1/2- inches for the end- then
I look at the plans where it bshows the cables etc. and- the bolt is at 1
2 inches ????????That being- I look at the 2 pieces of 3/4 inch tubing wi
th a very heavy wall , about 1/8 inch that are machined to fit inside 7/8 t
ubing and they are 4 inches ?- maybe because they are heavy wall they did
nt make them 6 inches ???? or perhaps they are for another application and
-I am supposed to cut 2 , 6inch pieces as it says in the manual ? does an
ybody know? Of course- I started this on Sunday the day before Labor-Da
y so neither Travis or- Brian are at work , but life goes on ! Thanks in
advance-
ChrisChris Davis 58 thursday=0AKXP 503 492 hrs=0AGlider Pilot=0ADisabled f
rom crash building Firefly =0A=0A=0A=0A=0A________________________________
=0AFrom: Jack B. Hart <jbhart@onlyinternet.net>=0ATo: kolb-list@matronics.c
om=0ASent: Sunday, September 6, 2009 10:40:11 AM=0ASubject: Kolb-List: Re:
Tail Wire Tangs Breaking And other Tail Brace=0A=0A--> Kolb-List message po
sted by: "Jack B. Hart" <jbhart@onlyinternet.net>=0A=0ADate: Sun, 6 Sep 200
9 05:43:51 -0500=0AFrom: Richard Girard <aslsa.rng@gmail.com>=0A>=0AJack, T
hanks. One minor point. At least on my MkIII the tail wires are 3/32" =0A7
X 7 cable which has a breaking strength of 980 lb. My Firestar has the =0As
ame.=0A>=0A=0ARick,=0A=0AYou are quite right, I did not get the correct cab
le size.=0A=0AOne thing that the math does not provide is the load at which
the tail will =0Astall.- I believe it will stall long before six G's, an
d so the cable and =0Atangs will more than support the load.- The greates
t chance for failure =0Acomes from the added / superimposed load due to ove
-========================
============0A=0A____________________________________
Message 5
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| Subject: | Microbes in the fuel |
There has been much said about filters lately.
This may be a new slant. I have paraphrased it from an article in the
current `Microlight magazine.
After many months investigating sudden loss of pwer in their 503 during
which everything, fuel lines, pump,ignition etc., was changed,cleaned,
and so on it was found that the filter was being blocked by microbial
contamination which grew into `colonies`..
This was intoduced into the fuel supply through water in the premix
oil. Oil is hygroscopic(attracts water) the oil was being drawn from a
20 litre drum as needed. Once opened the oil in the drum attracted water
and the bacteria attached themselves to the wall of the fuel tank.The
bacteria grew on the fuel filter mesh because that was where daylight
shone through the glass.
For those with 4 strokes. Biofuel is now added to petrol and this
contains ethanol which is highly hygroscopic so the same thing may be
expected to happen.
The problem was cured by introducing a magnetic field into the fuel
line. This appaerently disrupts the cellular structure of the microbes
and prevents them growing big enough clusters to block the filter.
Try www.purefueltechnologies.com
Hope I don`t get `done` for copyright infringement.
Cheers
Pat
Message 6
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| Subject: | Re: Tail Wire Tangs Breaking And other Tail Brace |
----- Forwarded Message ----
From: chris davis <capedavis@yahoo.com>
Sent: Monday, September 7, 2009 11:47:03 AM
Jack and Kolbers , I am just starting work on building my tail on my Firefly I
have the wings just about done in Fl. but brought the tail section back to Ma.
with me, as I could.
My question to you all that have built a Firefly is, when building the Horizontal
stabilizer the inst. manual says to cut 2 , 6 inch pieces of 3/4 tube
to incert in the trailing edge where the support cable bolts on, then I look
at the plans and they show the bolt for that cable in the center of the 6 inch
piece 12 1/2 inches for the end then I look at the plans where it bshows
the cables etc. and the bolt is at 12 inches ????????That being I look at the
2 pieces of 3/4 inch tubing with a very heavy wall , about 1/8 inch that are
machined to fit inside 7/8 tubing and they are 4 inches ? maybe because they
are heavy wall they didnt make them 6 inches ???? or perhaps they are for another
application and I am supposed to cut 2 , 6inch pieces as it says in the manual
? does anybody know? Of course I started this on Sunday the day before
Labor Day so neither Travis or Brian are at work , but life goes on ! Thanks
in advance Chris
Chris,
It has been almost ten years, and I don't remember. I checked my drawing set,
and it shows on Page 4 that a 4.5 inch spacer is used in the tail post of the
vertical stabilizer. Also, on Page 8, I see the 12 inch measurement with my note
of "-1/2". I believe I went with 12.5 inches as shown on Page 2. as I had
circled the measurement On Page 2 it says to use 6 inch spacers and I believe
I did. I wrote notes on my drawings as I tried to figure things out. If I
had not recieved the two six inch spacers, I would have made a note of it.
Will be interesting to hear what you find out when you call TNK.
Jack B. Hart FF004
Winchester, IN
Message 7
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| Subject: | Re: Tail shaking |
Hello all....I took another video out the back with the doors and windows off and
this is what I got. The video is not the best ,but it doesn't seem that bad...looks
worse on the ground that in the air...
Anyway...for what it's worth....
http://www.youtube.com/watch?v=LU-Hr6HigcQ
chris ambrose
M3X/Jab 60+hrs
N327CS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261916#261916
Message 8
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| Subject: | Re: Tail Wire Tangs Breaking And other Tail Brace |
Jack ,thanks for the input, I did get 3 spacers 2 4 inches by <7/8 and 1<1i
nch like it was intended for the vertical stabilizer they are machined down
but they dont-fit inside the tubes- I dont see why I should have to "s
plit" them after they-machined them ? I will call Brian tomorrow,- I kn
ew it was a long time since you built your tail but thought you might know
I think they changed the assembly but the book hasnt caught up yet . Probab
ly never will the way things are going.-Thanks Chris=0A-Chris Davis=0AK
XP 503 492 hrs=0AGlider Pilot=0ADisabled from crash building Firefly =0A=0A
=0A=0A=0A________________________________=0AFrom: Jack B. Hart <jbhart@only
internet.net>=0ATo: kolb-list@matronics.com=0ASent: Monday, September 7, 20
09 3:52:08 PM=0ASubject: Re: Kolb-List: Re: Tail Wire Tangs Breaking And ot
@onlyinternet.net>=0A=0A----- Forwarded Message ----=0AFrom: chris davis <c
apedavis@yahoo.com>=0ASent: Monday, September 7, 2009 11:47:03 AM=0A=0AJack
and Kolbers , I am just starting work on building my tail on my Firefly I
have the wings just about done- in Fl. but brought the tail section back
to Ma. with me,- as I could.=0A- - My question to you all that have b
uilt a Firefly is, when building the Horizontal stabilizer the inst. manual
says to cut 2 , 6 inch pieces of 3/4 tube to incert in the trailing edge
- where the support cable bolts on,- then I look at the plans and they
show the bolt for that cable in the center of the- 6 inch piece 12 1/2-
inches for the end- then I look at the plans where it bshows the cables
etc. and- the bolt is at 12 inches ????????That being- I look at the 2
pieces of 3/4 inch tubing with a very heavy wall , about 1/8 inch that are
machined to fit inside 7/8 tubing and they are 4 inches ?- maybe because
they are heavy wall they didnt make them 6 inches ???? or perhaps they are
for another application and I am supposed to cut 2 , 6inch pieces as it say
s in the manual ? does anybody know? Of course- I started this on Sunday
the day before Labor Day so neither Travis or- Brian are at work , but li
fe goes on ! Thanks in advance- Chris=0A=0AChris,=0A=0AIt has been almost
ten years, and I don't remember.- I checked my drawing set, and it shows
on Page 4 that a 4.5 inch spacer is used in the tail post of the vertical
stabilizer.- Also, on Page 8, I see the 12 inch measurement with my note
of "-1/2".- I believe I went with 12.5 inches as shown on Page 2. as I ha
d circled the measurement- On Page 2 it says to use 6 inch spacers and I
believe I did.- I wrote notes on my drawings as I tried to figure things
out.- If I had not recieved the two six inch spacers, I would have made a
note of it.=0A=0AWill be interesting to hear what you find out when you ca
-========================
- - - - - - - - - - - - - -Matt Dralle, List Admi
======0A=0A=0A
Message 9
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| Subject: | Sealing a Westach fuel gauge sender to a plastic tank |
Tinkering away under threat of thunderstorms.
Rick Girard
Message 10
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| Subject: | Re: Sealing a Westach fuel gauge sender to a plastic tank |
Thanks Rick, This comes at just the right time for me . I have pulled my tanks
out of my MK3 and replacing them with new, because of sitting about 3 years
and lots of goo and gunk in the tank.
I put a sending unit in the tank many years ago, but with your post I don't have
to try to remember how I did it.
Thanks again.
Richard
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261956#261956
Message 11
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| Subject: | Re: Sealing a Westach fuel gauge sender to a plastic tank |
Richard, When I changed tanks, although I have no idea what the age of the
old ones were, I had to trim the stem of the sender and recalibrate. At some
time in the past the tanks have changed slightly and are not as tall.
Rick
On Mon, Sep 7, 2009 at 7:45 PM, R Harris <kolbdriver@whti.net> wrote:
>
> Thanks Rick, This comes at just the right time for me . I have pulled my
> tanks out of my MK3 and replacing them with new, because of sitting about 3
> years and lots of goo and gunk in the tank.
> I put a sending unit in the tank many years ago, but with your post I don't
> have to try to remember how I did it.
> Thanks again.
>
> Richard
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=261956#261956
>
>
Message 12
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Kolbers,
Cecil B. Cotrell's videos are so enjoyable to me, I decided I need to get with
it and start shooting some myself. I've got a lot to learn, but I'm starting with
this one. I shot it with the video function on my digital camera, which I
did not even know was on there until recently.
I was flying the Texas coastline between Freeport and Matagorda this morning. The
bay system to the right is an area I fished at for years, and it was very neat
flying over the same coves I used to go wade-fishing in. The beach provides
a decent off-field landing spot in case of trouble, and there are no homes within
miles of where I am flying low at.
Enjoy!
Jimmy Y
http://www.youtube.com/watch?v=-P_CIJko4L0
--------
Jimmy Young
FS II, HKS 700
N7043P
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261960#261960
Message 13
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| Subject: | Re: icom radio trouble |
Found part of the problem, Icom told me the squeal happens when you use a headset
with no PTT switch.
My headset does this even with the mic disconnected up at the headset.
As for motor noise, I found my plug gap open to .035'.
I have corrected that but not tested yet.
--------
Dale Whelan
503 powered Firestar II
Projection, A simple and interesting Psychological concept
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261961#261961
Message 14
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| Subject: | Re: Microbes in the fuel |
Patrick/Gang:
I'll take a dozen of those items. My fuel is long past due for some
serious straightening.
john h
mkIII
West Yellowstone, MT
This appaerently disrupts the cellular structure of the microbes and
prevents them growing big enough clusters to block the filter.
Try www.purefueltechnologies.com
Pat
Message 15
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| Subject: | Re: Rotax 503 running problem |
Finally getting close.
I got some advice the other day from somebody that has been doing this 28 years
longer than I have, some of what he said made sense, some not as much.
Although the motor had been working fine, It was suggested that the prop was pitched
too high.
I thought he was wrong but had to concede that he had over 28 times my experience.
The part that I did not buy is that the motor goes way rich at 5,800 RPM and won't
run. I often cruise at this RPM and burn 2.5 GPH.
I got to thinking how my race bike makes more power cold than hot.
I also thought about the balancing act between prop load and Horsepower.
Then I thought what if the horsepower falls faster than prop load?
My friend does not feel like takeing off the 68" 3 blade prop on his 503.
The motor worked when he got the plane in the winter.
In the summer we can't get it to rev with the same pitch.
Last night he removed the single Mikuni and installed dual Bings.
The motor idled smoothly, ran for crap in the middle, and held 6,200 RPM on the
ground up to 375 CHT.
I brought some Main jets and a smaller needle jet.
Middle is better, motor ran consistantly.
Seems the ballance was tipped by more power. I think it still has way to much prop.
Next time we fly together, Greg plans to try my 66" 2 blade IVO.
We plan on putting my needles in his plane to see if that cleans up the mixture
at about 4,200-5,500. We have the same needles but I want to make sure that lower
time working needles don't work before trying different needles.
--------
Dale Whelan
503 powered Firestar II
Projection, A simple and interesting Psychological concept
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261967#261967
Message 16
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| Subject: | Re: rookie video |
> I was flying the Texas coastline between Freeport and Matagorda this
morning. >
> Jimmy Y
>
> http://www.youtube.com/watch?v=-P_CIJko4L0
Jimmy Y/Gang:
I enjoyed the flight.
John W, Gary H, Ken K, and I flew the beach from Port Arthur, Texas, to the
Mexican Border. Turned right and flew up the Rio Grand River to the Pecos
River, then back to Arlington, Texas, Houston, TX, and finally home to
Alabama.
Brought back some fine memories of this flight which took place the first of
December 2005.
john h
mkIII
DO NOT ARCHIVE
Message 17
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| Subject: | Re: rookie video |
Good video. Noticed that as the camera panned back and forth from behind the Lexan,
it appears that your windscreen is lightly tinted. If so, where did you get
the tinted Lexan? Or is that just the camera adapting to light changes?
Richard Pike
MKIII N420P (420ldPoops)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261969#261969
Message 18
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| Subject: | Re: wing attach vector |
I would like to know how to find out, I would like to guess 330 degrees
--------
Dale Whelan
503 powered Firestar II
Projection, A simple and interesting Psychological concept
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261970#261970
Message 19
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| Subject: | Re: Tail shaking |
I took another video out the back with the doors and windows off and this
is what I got.
>
> chris ambrose
Chris A/Gang:
The 6" tail boom is a very flexible tube.
Most of the prop blast is hitting the side of the tail section.
Prop blast knocks it one way and relative wind is pushing it back.
Amazing how stable the tail section is considering the environment it lives.
john h
mkIII
West Yellowstone, Montana - Forecasting 29F tonight with rain and snow.
Message 20
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| Subject: | Re: wing attach vector |
>From "Stress Without Tears" by Tom Rhodes, Chapter 4, figure 6, the
direction of the load at the spar attach comes straight in from the spar or
in the original question here, 270 degrees. All other loads come into the
fuselage at the strut attach fitting.
Rick Girard
do not archive
On Mon, Sep 7, 2009 at 8:49 PM, dalewhelan <dalewhelan@earthlink.net> wrote:
>
> I would like to know how to find out, I would like to guess 330 degrees
>
> --------
> Dale Whelan
> 503 powered Firestar II
> Projection, A simple and interesting Psychological concept
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=261970#261970
>
>
Message 21
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| Subject: | Re: Rotax 503 running problem |
Dale, Download the various Rotax two stroke manuals at ROAN. When it comes
to props Rotax has one consistent message. The prop must load the engine
properly. Your friends 6200 static is just about perfect. If he goes over
6500 at full throttle in level flight it is too little pitch, not too much.Get
the Bing manual and look up the correct jets for the model and setup of the
503 you have. Adjust mains only for altitude and temperature if necessary.
Then check prop for proper loading.
When I was a kid there was an adage among owners of Brit sport cars (I had a
Sunbeam Alpine). "95% of all carburetor problems are solved in the
electrical system". With the Rotax, it's the prop.
Rick Girard
do not archive
On Mon, Sep 7, 2009 at 8:35 PM, dalewhelan <dalewhelan@earthlink.net> wrote:
>
> Finally getting close.
> I got some advice the other day from somebody that has been doing this 28
> years longer than I have, some of what he said made sense, some not as much.
> Although the motor had been working fine, It was suggested that the prop
> was pitched too high.
> I thought he was wrong but had to concede that he had over 28 times my
> experience.
> The part that I did not buy is that the motor goes way rich at 5,800 RPM
> and won't run. I often cruise at this RPM and burn 2.5 GPH.
> I got to thinking how my race bike makes more power cold than hot.
> I also thought about the balancing act between prop load and Horsepower.
> Then I thought what if the horsepower falls faster than prop load?
> My friend does not feel like takeing off the 68" 3 blade prop on his 503.
> The motor worked when he got the plane in the winter.
> In the summer we can't get it to rev with the same pitch.
> Last night he removed the single Mikuni and installed dual Bings.
> The motor idled smoothly, ran for crap in the middle, and held 6,200 RPM on
> the ground up to 375 CHT.
> I brought some Main jets and a smaller needle jet.
> Middle is better, motor ran consistantly.
> Seems the ballance was tipped by more power. I think it still has way to
> much prop. Next time we fly together, Greg plans to try my 66" 2 blade IVO.
> We plan on putting my needles in his plane to see if that cleans up the
> mixture at about 4,200-5,500. We have the same needles but I want to make
> sure that lower time working needles don't work before trying different
> needles.
>
> --------
> Dale Whelan
> 503 powered Firestar II
> Projection, A simple and interesting Psychological concept
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=261967#261967
>
>
Message 22
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| Subject: | Weight limit - Kolb Twinstar MKII |
Hi Folks,
I just purchased a Kolb MKII. I've read through the manuals and searched the internet
(including this list) for one seemingly simple spec on the aircraft. Can
someone tell me? What is the max gross weight?
Thanks,
Duane
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261982#261982
Message 23
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| Subject: | Re: rookie video |
Very nice Jimmy, thanks for the video.
Larry Cottrell
----- Original Message -----
From: Jimmy Young
To: kolb-list@matronics.com
Sent: Monday, September 07, 2009 7:12 PM
Subject: Kolb-List: rookie video
Kolbers,
Cecil B. Cotrell's videos are so enjoyable to me, I decided I need to
get with it and start shooting some myself. I've got a lot to learn, but
I'm starting with this one. I shot it with the video function on my
digital camera, which I did not even know was on there until recently.
I was flying the Texas coastline between Freeport and Matagorda this
morning. The bay system to the right is an area I fished at for years,
and it was very neat flying over the same coves I used to go
wade-fishing in. The beach provides a decent off-field landing spot in
case of trouble, and there are no homes within miles of where I am
flying low at.
Enjoy!
Jimmy Y
http://www.youtube.com/watch?v=-P_CIJko4L0
--------
Jimmy Young
FS II, HKS 700
N7043P
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261960#261960
-------------------------------------------------------------------------
-----
Checked by AVG - www.avg.com
09/07/09 18:03:00
Message 24
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| Subject: | re kolb list wing attach vector. |
Here's one to ponder. .. Maybe it has been covered before and I
missed it.
Assuming a compass of 360 degrees with 0/360 at the top and 90
outboard, where would the net
force be pushing on the front attach fitting? 325?
Jack Hart is our most analytical soul :)
BB
>From "Stress Without Tears" by Tom Rhodes, Chapter 4, figure 6, the
direction of the load at the spar attach comes straight in from the spar or
in the original question here, 270 degrees. All other loads come into the
fuselage at the strut attach fitting.
Rick Girard
do not archive
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I think that Ricks answer is correct assuming the lift inboard and outboard
of the lift strut is equal.
If the outer half of the wing has more lift than the inner half. The force
at the attach point will be less than 270,, and greater than 270 if the
inner half of the wing has greater lift than the outer section.
Boyd Young
Kolb MkIII C 610+ hours and counting
Brigham City Utah.
Message 25
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| Subject: | Re: Weight limit - Kolb Twinstar MKII |
Duane
I'm not sure what my MKII has for a listed max gross, but it flys nicely with 410
lbs of people and 30lbs of fuel. With the airplane weight at 390 lbs that is
a total of 830 lbs.
Malcolm
----- Original Message -----
From: "dutrac" <dlrans@gmail.com>
Sent: Monday, September 7, 2009 10:10:44 PM GMT -05:00 US/Canada Eastern
Subject: Kolb-List: Weight limit - Kolb Twinstar MKII
Hi Folks,
I just purchased a Kolb MKII. I've read through the manuals and searched the internet
(including this list) for one seemingly simple spec on the aircraft. Can
someone tell me? What is the max gross weight?
Thanks,
Duane
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=261982#261982
Message 26
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| Subject: | Summary of Kolb database, so far |
Below is a summary of the Kolb data base. To date, 30 people have
submitted information. (Toward the tail-end of my summary work, someone
submitted their info, so, near the bottom, you may see a few numbers
that add up to 31.)
Now, it should go without saying, that averages and items that a
majority of pilots use does not necessarily mean those are numbers or
items that everyone should aspire to. We are all VERY different people,
and there are volumes of reasoning and conditions and situations behind
every decision. Draw your own conclusions about your numbers and items!
----------------------------------------------------------------------------------
Average of "Current Age": 59.73
Average of "Age when you started flying your Kolb": 52.93
Average of "Age when obtained first pilot certificate of any kind": 37.74
Percentage of Kolbs flown as ultralights: 17%
Percentage of MkIII (C's and X's combined): 43%
Percentage of Firestars (I and II combined): 33%
40% of the Kolbs were built by their owners/pilots
Average number of hours on the airframe of the Kolbs: 483
Average number of hours on the engine in the Kolbs: 249
Average of total hours the pilot/owner has flown their Kolb: 323
Average of total flight time in ANY aircraft: 1026
Engines in use:
3 HKS
4 Jabiru
5 Rotax 582
6 Rotax 503
3 Rotax 447
2 Rotax 912
1 VW
2 Suzuki
1 MZ 34
1 Hirth
Average of the indicated airspeed preference: 65.2mph
Average of the fuel use at preferred airspeed: 3.15gph
Average of total amount of fuel that can be put in tanks: 11.03
Oils used by the group include
AeroShell 15W50
Castrol synthetic
Mobil 1
Opti - 2
Pennzoil 2-Stroke Air Cooled
Penzoil 30 wt.
Shell Rotella Full Synthetic
Valvoline Durablend Semi-Synthetic
Walmart 2-stroke W3C
Yamalube 2-stroke
Yamalube semi synthetic
Only 17% said they used gascolators (most were home-made).
Those using all clear/semi-clear fuel tubing: 52%
Those using all black automotive fuel line: 21%
33% used an EIS, and most of those are Grand Rapids EIS
80% use a radio, and most of those are Icom's.
Most of the GPSes in use were Garmin of various flavors.
Only 1 has a transponder.
Only 3 are configured to fly VFR night.
35% used VGs on their Kolb.
Only 16% wore a helmet when flying their Kolb.
36% of the respondents admitted to some kind of crash in their Kolb.
Only 1 has had a ramp check.
And that's it!.
Now, about the only thing harder than creating a questionnaire that
means much is analyzing the answers to see what they mean. So, as I
said, no one should make judgments about what to do, or buy, based on
averages or what the majority purchases.
I've only got about half the respondents that Thom got for his poll on
ages, so, I'm truly hoping more will fill out this form.
Ya gotta admit, there are some interesting tidbits of info, here. I
probably won't do another summary until I get at least another 15-20
respondents.
-- Robert
Message 27
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| Subject: | Re: rookie video |
Man o' man, I used to do that a lot when I hangared down there at
Bailes.... I sure do miss those days and flights along the beah!
Thanks for the memories...! Maybe by this time next year we'll be
able to do these flights together. Hope there's room at Bailes for my
Kolb and Gyrobee!
-- Robert
On Mon, Sep 7, 2009 at 8:12 PM, Jimmy Young<jdy100@comcast.net> wrote:
>
> Kolbers,
>
> Cecil B. Cotrell's videos are so enjoyable to me, I decided I need to get with
it and start shooting some myself. I've got a lot to learn, but I'm starting
with this one. I shot it with the video function on my digital camera, which
I did not even know was on there until recently.
>
> I was flying the Texas coastline between Freeport and Matagorda this morning.
The bay system to the right is an area I fished at for years, and it was very
neat flying over the same coves I used to go wade-fishing in. The beach provides
a decent off-field landing spot in case of trouble, and there are no homes
within miles of where I am flying low at.
>
> Enjoy!
>
> Jimmy Y
>
> http://www.youtube.com/watch?v=-P_CIJko4L0
>
> --------
> Jimmy Young
> FS II, HKS 700
> N7043P
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=261960#261960
>
>
Message 28
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| Subject: | Re: Rotax 503 running problem |
I would have thought it perfect but that is all I pull on climb as well.
It is pitched Too high and has excessive prop inertia.
The motor runs rich on the second half of the needle
A 503 on a B box does not need a 68" 3 blade Powerfin prop.
Kolb actually recomends a 60-62" IVO 3 Blade.
I am quite comfortable jetting 2 strokes.
All confusion was removed at the airfield today.
All that is left is basic carb jetting.
--------
Dale Whelan
503 powered Firestar II
Projection, A simple and interesting Psychological concept
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=262001#262001
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