Today's Message Index:
----------------------
1. 11:28 AM - Re: tuft/stall testing (with video) (carlisle)
2. 12:29 PM - Blue Bing Fuel Tubing (WurlyBird)
3. 04:24 PM - Re: tire wear out side (Roger Lee)
4. 05:29 PM - Re: Blue Bing Fuel Tubing (Tom Jones)
5. 06:26 PM - Re: Re: tuft/stall testing (with video) (fox5flyer)
6. 08:42 PM - Re: Blue Bing Fuel Tubing (WurlyBird)
7. 08:47 PM - Re: Larger Elevator (WurlyBird)
8. 09:40 PM - Re: Re: Larger Elevator (Guy Buchanan)
9. 09:48 PM - Re: Blue Bing Fuel Tubing (Guy Buchanan)
10. 10:43 PM - Re: Re: tuft/stall testing (with video) (Michael Gibbs)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: tuft/stall testing (with video) |
http://www.youtube.com/watch?v=gor7LhsAILs
OK, here's the new video with Stolspeed vortex generators added.
Stall now happens around 30 mph instead of 35 and I can't get it to progress out
to the tip of the wing, even trying to hold it @ high pitch for a while with
power on. The last stall does fall off to the right a little and this vid is
of the left wing so I wonder if it didn't go ahead and go out to the tip on that
side.
Also note; the flexing/flapping/oil canning fabric is no more. I did take a heat
gun to the entire upper surface after seeing the first vid but couldn't really
tell that that made much difference, at least to the 'feel' of the fabric
tension. I suppose the fabric might have loosened over the years a little. One
has to wonder though if the vg's are at least partially responsible for smoothing
out the boundary layer and therefore the fabric a little too.
Guess I'll leave them on.
Chris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267496#267496
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Blue Bing Fuel Tubing |
Is there any reason to not use the blue polyurethane fuel tubing from Bing on the
pressure side of the fuel pump? I need to replace some tubing and that is
what I have on hand and understand can be used but the tubing that is coming off
is 2 layer with webbing (presumably nylon) in between. Is this heavy of tubing
needed between the pump and the carb?
Sorry I always have the stupid questions, unfortunately I can spend all day at
work on the net but if I bust out experimental aircraft manuals people get upset.
Thanks for the help.
James
--------
James
Kitfox 3 / 582 / GSC prop
The ink is still drying on my new certificate
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267502#267502
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: tire wear out side |
I'm with Guy. Check the tires toe-in, out and camber.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267517#267517
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Blue Bing Fuel Tubing |
James asked:
> Is there any reason to not use the blue polyurethane fuel tubing from Bing on
the pressure side of the fuel pump?
That is what I have been using.
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267521#267521
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: tuft/stall testing (with video) |
Again, another great video, Chris. Thanks. Please tell us more about your
VGs. Where you obtained them, how much you paid, etc. Also, how did you
determine exactly where to place them on the wing, especially the spacing.
Any other observations welcome.
Deke Morisse
Mikado Michigan
S5/Subaru/CAP 439+ TT
"If you put the federal government in charge of the Sahara
Desert, in five years there'd be a shortage of sand."
-- Nobel prize-winning economist Milton Friedman (1912-2006)
----- Original Message -----
From: "carlisle" <carlisle_99@yahoo.com>
Sent: Sunday, October 11, 2009 2:25 PM
Subject: Kitfox-List: Re: tuft/stall testing (with video)
>
> http://www.youtube.com/watch?v=gor7LhsAILs
>
> OK, here's the new video with Stolspeed vortex generators added.
>
> Stall now happens around 30 mph instead of 35 and I can't get it to
> progress out to the tip of the wing, even trying to hold it @ high pitch
> for a while with power on. The last stall does fall off to the right a
> little and this vid is of the left wing so I wonder if it didn't go ahead
> and go out to the tip on that side.
>
> Also note; the flexing/flapping/oil canning fabric is no more. I did take
> a heat gun to the entire upper surface after seeing the first vid but
> couldn't really tell that that made much difference, at least to the
> 'feel' of the fabric tension. I suppose the fabric might have loosened
> over the years a little. One has to wonder though if the vg's are at least
> partially responsible for smoothing out the boundary layer and therefore
> the fabric a little too.
>
> Guess I'll leave them on.
>
> Chris
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=267496#267496
>
>
>
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Blue Bing Fuel Tubing |
Now that there is time, here is why I am replacing the lines. A fun "luck" story.
I was giving a ride to a friend and we took off in marginal winds, 10 gusting
17 straight down the runway, but it was the forecast high for the day so
we went with it. At some point I decided we were done and we headed back. AWOS
called 17 gusting 27 still straight down the runway, at least we were going
to have a low ground speed at touchdown. I opted to not do my normal 3 touch
and goes to end the flight and we landed just the once with a walking speed touchdown
and a 30 foot roll out. As we got out my friend asked if the fluid draining
out of the cowl was normal, it was fuel. The fuel line that was used
had become quite hardened and apparently cracked at the rear carb. I later told
my friend how if we had taken off on a touch and go the rear carb would have
starved and we would have had partial power at best on climb out and we would
have landed in a best case scenario with a 20 kt tail wind on the runway.
I figured the reinforced fuel line was excessive but I just couldn't step down
straight to the blue lines with out knowing, so this morning I replaced both lines
from the pump with fuel injection tubing so there was no question. Clocked
1.3 today with no issues. I will be switching to the bing lines through out
when I redo the fuel system later this year.
--------
James
Kitfox 3 / 582 / GSC prop
The ink is still drying on my new certificate
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267531#267531
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Larger Elevator |
Thanks for the reply Clint. . . .
So, any input on how it works? :D
Guy, I have not sealed the gap although I have read a little about it. A quick
search has not yet turned up any stories about it or how to do it. Have you
done it? Does it make a big enough difference as to not need the larger elevator?
What was your method?
As always, thanks for the help.
--------
James
Kitfox 3 / 582 / GSC prop
The ink is still drying on my new certificate
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267532#267532
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Larger Elevator |
At 08:44 PM 10/11/2009, you wrote:
>Guy, I have not sealed the gap although I have read a little about
>it. A quick search has not yet turned up any stories about it or
>how to do it. Have you done it? Does it make a big enough
>difference as to not need the larger elevator? What was your method?
James,
It's been a while, but to quantify: before I gap sealed I
could only get the tail wheel to about 1' of altitude when 3-pointing
with full aft stick and full flaps. After I gap sealed I was able to
easily get the tailwheel on the ground first. It was a very
noticeable difference. I was not able to notice any difference in flight.
I gap sealed using heavy duty clear packing tape. I do the
method where you take two 1 1/2" wide pieces, reversing one onto the
other so there's only about 1/2" of sticky stuff on both edges, and
then stick one edge to the top of the elevator and one to the bottom
of the horizontal, crossing the gap. I've had to replace them twice
in three-four years and 460 hours. It takes about an hour now that I
know how. If you're careful about keeping finger prints and bugs and
fuzz off it looks pretty good, too.
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 400 hrs. and counting
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Blue Bing Fuel Tubing |
At 12:27 PM 10/11/2009, you wrote:
>Is there any reason to not use the blue polyurethane fuel tubing
>from Bing on the pressure side of the fuel pump? I need to replace
>some tubing and that is what I have on hand and understand can be
>used but the tubing that is coming off is 2 layer with webbing
>(presumably nylon) in between. Is this heavy of tubing needed
>between the pump and the carb?
James,
I've been using it downstream of the pump for the last few
years and about 460 hours. No problem. I replace the stuff in the
engine compartment yearly, though. (Paranoid.)
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 400 hrs. and counting
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: tuft/stall testing (with video) |
> Again, another great video, Chris.
I agree! Do you have a picture of your camera rig (or did I miss it)?
Mike G.
N728KF, Kitfox IV-1200 Speedster
Phoenix, AZ
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|