Today's Message Index:
----------------------
1. 08:06 AM - Re: Dynon Skyview Airspeed Calibration... (Carl Froehlich)
2. 08:51 AM - Re: Dynon Skyview Airspeed Calibration... (Jim Ayers)
3. 11:49 AM - Re: Dynon Skyview Airspeed Calibration... (Kevin Horton)
4. 12:58 PM - Fw: RAF Call To Action (Bill Judge)
5. 09:16 PM - Re: Dynon Skyview Airspeed Calibration... (Matt Dralle)
6. 10:33 PM - Dynon Skyview vs. GRT HX EFIS... (Matt Dralle)
7. 11:43 PM - Re: Dynon Skyview Airspeed Calibration... (Bob Mills)
Message 1
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| Subject: | Dynon Skyview Airspeed Calibration... |
A few of thoughts.
1. It is an easy set up to verify IAS reads properly. Attached photos are
the rig I used. I also attached the scale to translate inches to knots.
There are various placed to find the test rig on the web. You need not take
the airspeed indicator out of the plane, just attached the tube to the pitot
and seal with electrical tape. In the attached rig photo, the pressure
source attaches to the tube that is hanging free on the left. I found an
old blood pressure bulb for this.
2. For my 8A, I initially used a pitot tube that included the static port.
It word well except for high pitch angles. At high angles the static port
started to get ram air. The result was I could have "0" IAS in power on
stalls but still be flying.
3. When I took the plane down for paint, I installed two of the Cleveland
tool static ports in the standard fuselage locations. These are flush
ports. I found this induced a static error. I did a simple fix by drilling
a 1/16 inch hole in the center of a 3/16 round head rivet, cut the rivet
head off and then epoxied the rivet head over the static port. I used a
toothpick to hold the rivet head in place while the epoxy set, and to keep
the epoxy out the hole. This fix solved the static problem. Photo
attached.
4. On the RV-10, I used the same rivet but did not use the Cleveland ports.
I drilled the 1/16" hole all the way thought the head and rivet shank. I
epoxied the rivet to the fuselage, adding a 1/8" thick, 1/2" diameter
aluminum ring (3/16 hole drilled in the middle) backer to the inside of the
fuselage to add strength. The static line then gets epoxied over the rivet
shank.
Once you verify the IAS is correct, but you still have a problem with TAS
reading high, recommend you talk a look at where you mounted the Dynon OAT
probe. If you have it in a place that is typically hotter than outside or
getting a lot of prop wash (increases temperature), TAS will read high.
Carl
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Linn Walters
Sent: Monday, December 26, 2011 11:01 PM
Subject: Re: RV-List: Dynon Skyview Airspeed Calibration...
I think you're on the right track ..... airspeed is the measurement of
the difference in pressure between the pitot and static. So, it appears
(to me anyway) that the static pressure is in a lower pressure area than
it 'should be'. You should have two static ports, one on each side of
the fuselage about 1/2 way between wing trailing edge and horizontal
stab leading edge. This should be the area of least disturbed air going
by. Having the ports on each side balances the pressures caused by
slipping and sliding. The port should stick out a little to get out of
the laminar air flow along the fuselage.
Since there's no airflow in either the pitot or static lines, a
restricter won't have any effect. The angle of the pitot to relative
airflow will have some effect on the airspeed reading too.
One of our RV-4 pilots (he bought it, not built it) was complaining
about inaccurate airspeed and we found the single static port above and
forward of the wing leading edge on the left fuselage side. It's a
'washer' about 1" dia and 1/16" thick with a small hole in the center.
It's located right where prop wash will really hit it with turbulent
air. He plans on moving it and installing two ports as above.
Linn
On 12/26/2011 10:39 PM, Matt Dralle wrote:
> --> RV-List message posted by: Matt Dralle<dralle@matronics.com>
>
> Dear Listers,
>
> I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now
and it seems like the airspeed is reading maybe 10mph fast. The GS always
reads 10mph or more slower than the True airspeed, no matter which way I fly
with respect to the current wind. Looking through the configuration options
on the Skyview, I'm not seeing parameters to calibrate the airspeed. If the
airspeed were *slow* compared to the GS, I could envision making adjustments
to the Pitot tube to get it in better alignment with slipstream. But *fast*
is a head scratcher. If there's no electronic configuration parameters to
adjust, what do you do? Are there Pitot line "attenuators" like for RF in
coax? ;-)
>
> Matt
>
> -
> Matt "Red Dawg" Dralle
>
> RV-8 #82880 N998RV "Ruby Vixen"
> http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
> http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
> http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
> Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
>
> RV-6 #20916 N360EM "The Flyer"
> http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
> Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer
Mode
>
>
Message 2
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| Subject: | Re: Dynon Skyview Airspeed Calibration... |
An easy way to check the static side of the airspeed indicator is to use yo
ur altimeter.
I flew along a ridge line at cruise speed that has a 2200 feet peak as show
n on my sectional.
I may not have been exactly at the same level. Could have been 10 or 20 fe
et off in hieght. My altimeter read 2,210 feet.
So, at that time, my static system was pretty close.
Jim Ayers
Less Drag Special sn 1 (Modified HR2)
-----Original Message-----
From: David Maib <dmaib@mac.com>
Sent: Mon, Dec 26, 2011 8:03 pm
Subject: Re: RV-List: Dynon Skyview Airspeed Calibration...
Maybe a static port error? Check out some of Kevin Horton's articles
n Kitplanes. Static port errors can, and do, cause "fast" errors.
IRC, Kevin says that pitot alignment does not have to be very
recise to be pretty accurate.
David Maib
v-10 40559
lying.
n Dec 26, 2011, at 10:39 PM, Matt Dralle wrote:
Dear Listers,
I've been flying the new 10" Dynon Skyview in the RV-6 for a few
weeks now and it seems like the airspeed is reading maybe 10mph
fast. The GS always reads 10mph or more slower than the True
airspeed, no matter which way I fly with respect to the current
wind. Looking through the configuration options on the Skyview,
I'm not seeing parameters to calibrate the airspeed. If the
airspeed were *slow* compared to the GS, I could envision making
adjustments to the Pitot tube to get it in better alignment with
slipstream. But *fast* is a head scratcher. If there's no
electronic configuration parameters to adjust, what do you do? Are
there Pitot line "attenuators" like for RF in coax? ;-)
Matt
-
Matt "Red Dawg" Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full
Flyer Mode
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Message 3
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| Subject: | Re: Dynon Skyview Airspeed Calibration... |
Checking altimeter accuracy against tops of ridge lines only works if the temperature
is close to standard temperature.
If the temperature differs from standard, the error is about 4 ft per 1000 ft per
degree C of difference from standard temperature. E.g., if the top of the
ridge line is 2000 ft above the airport where the altimeter setting came from,
and the temperature is 15 deg C warmer than standard temperature, the altimeter
will read about 4/1000 * 2000 * 15 = 120 ft lower than the actual altitude.
See:
http://bathursted.ccnb.nb.ca/vatcan/fir/moncton/WeeklyTopics/Archives/20040104/CurrentTopic.html
http://44rf.com/misc/USAF_AIS_Cold_WX_Altimeter.ppt
Kevin Horton
On 2011-12-27, at 12:44 , Jim Ayers wrote:
> An easy way to check the static side of the airspeed indicator is to use your
altimeter.
>
> I flew along a ridge line at cruise speed that has a 2200 feet peak as shown
on my sectional.
>
> I may not have been exactly at the same level. Could have been 10 or 20 feet
off in hieght. My altimeter read 2,210 feet.
> So, at that time, my static system was pretty close.
>
> Jim Ayers
> Less Drag Special sn 1 (Modified HR2)
>
> -----Original Message-----
> From: David Maib <dmaib@mac.com>
> To: rv-list <rv-list@matronics.com>
> Sent: Mon, Dec 26, 2011 8:03 pm
> Subject: Re: RV-List: Dynon Skyview Airspeed Calibration...
>
> >
>
> Maybe a static port error? Check out some of Kevin Horton's articles
> in Kitplanes. Static port errors can, and do, cause "fast" errors.
> IIRC, Kevin says that pitot alignment does not have to be very
> precise to be pretty accurate.
>
> David Maib
> Rv-10 40559
> Flying.
> On Dec 26, 2011, at 10:39 PM, Matt Dralle wrote:
>
> dralle@matronics.com
> >
> >
> > Dear Listers,
> >
> > I've been flying the new 10" Dynon Skyview in the RV-6 for a few
> > weeks now and it seems like the airspeed is reading maybe 10mph
> > fast. The GS always reads 10mph or more slower than the True
> > airspeed, no matter which way I fly with respect to the current
> > wind. Looking through the configuration options on the Skyview,
> > I'm not seeing parameters to calibrate the airspeed. If the
> > airspeed were *slow* compared to the GS, I could envision making
> > adjustments to the Pitot tube to get it in better alignment with
> > slipstream. But *fast* is a head scratcher. If there's no
> > electronic configuration parameters to adjust, what do you do? Are
> > there Pitot line "attenuators" like for RF in coax? ;-)
> >
> > Matt
> >
> > -
> > Matt "Red Dawg" Dralle
> >
> > RV-8 #82880 N998RV "Ruby Vixen"
> >
> http://www.mattsrv8.com
> - Matt's Complete RV-8 Construction Log
> >
> http://www.mattsrv8.com/Mishap
> - Landing Mishap Rebuild Log
> >
> http://www.youtube.com/MattsRV8
> - Matt's RV-8 HDTV YouTube Channel
> > Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
> >
> > RV-6 #20916 N360EM "The Flyer"
> >
> http://www.mattsrv6.com
> - Matt's RV-6 Revitalization Log
> > Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full
> > Flyer Mode
> >
> >
> >
> >
Message 4
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| Subject: | Fwd: RAF Call To Action |
Greetings,
I got a note from the Recreational Aviation Foundation today(RAF) asking
for people to write letters to the Bureau of Land Management(BLM) Field
office in Silt, Colorado.
The field office is working through their process of making a new
"resource management plan"(RMP) the current draft is agnostic to aviation
and several airstrips could be closed. Ideally the RAF would like to get
language added to the RMP that is positive toward airstrips on a no cost to
the tax payer basis.
The RAF was able to get "Chicken Strip" reopened this year and has been
able to make significant progress in getting policy changed toward aviation
on public land.
Translated that means the RAF has been working to preserve and expand the
number if places we get to visit with our magic carpets.
I've drafted a letter which I whole heartedly encourage you to plagiarize
it with your own writer's embellishments. Here is a link to it.
<https://docs.google.com/document/d/1iDNp8RDlrl_AFNAmN0CYdKTB9JEkaQGdIaIWcA
8dNv0/edit>
Thanks,
Bill Judge
N84WJ, RV-8, 690 hrs
rv-8.blogspot.com
---------- Forwarded message ----------
From: Recreational Aviation Foundation <contact@theraf.org>
Subject: RAF Call To Action
Dear William,
*Colorado **airstrips could go away!*
Now is your chance to help the cause and be an active part of the
Recreational Aviaiton Foundation (RAF). It will only take a few minutes of
your time and a postage stamp.
The Colorado River Valley field office of the Bureau of Land Management
recently released a draft Resource Management Plan (RMP) for the Colorado
River Valley. It covers BLM holdings from Rifle to Vail in the northwest
part of the state. RAF supporter Hap Pool of Vail, CO, just happened to see
the draft plan notice and request for public comment. He immediately met
with BLM staff in Silt, CO, and provided them the RAF produced =93Reference
Guide for Public Land Managers=94.
The draft RMP makes no reference to the airstrips located on BLM land
within the planning area. The BLM told Hap that they had no idea that
recreational aviation even existed. This planning process began in 2008
with scoping meetings, but pilots in the area did not know about it due to
lack of BLM notification to the aviation community. Now the only option to
gain aviation input into the planning process is to suggest specific
language that addresses aviation issues. The RAF and the Colorado Pilots
Association (CPA) drafted wording changes and each organization will submit
comments to the BLM. The RAF comments comprise eight pages of background
information and detailed wording changes to the draft RMP.
*Here=92s what can you do to preserve the Colorado
airstrips!*
Please write a brief letter supporting the RAF and CPA input to the draft
RMP. Written letters (even postcards) demonstrate to the BLM that
recreational aviation is alive and well, it has a national interest in the
outcome of the final RMP and aviation should be considered in a positive
manner in any RMP. It does not matter where you live, the BLM should hear
from you to demonstrate the concern of pilots nationwide. Send your
comments to:
*BLM CO Colorado River Valley Field Office *
*2300 River Frontage Road*
*Silt**, CO 81652*
*Letter writing Guidelines:*You don=92t have to live in Colorado to submit
a
letter. The BLM needs to know that these airstrips are of national
importance.
1) Identify your subject (=93CRV draft RMP comments=94). The staff wil
l
then file your letter properly.
2) Identify yourself as a pilot and you want these comments filed
under the topic of recreational aviation. Stress that you support the RMP
language as submitted by the Recreational Aviation Foundation.
3) Write the letter in your own words, in your own writing style.
Stick to a few basic bulleted points.
4) Be specific. Tell the BLM to include recreational aviation and
airstrips within the final CRV RMP even though there was an inadvertent
omission of airstrips in the draft RMP. Specifically mention the Roan
Cliffs and Tepee Creek airstrips.
5) Cite personal experiences. Have you ever needed to land at a
backcountry airstrip due to weather changes or mechanical problems? Have
you flown a young or elderly or disabled person to a backcountry airstrip
so that person could have a unique experience?
6) What do you like to do with your family? Airplane camp, hike, etc.
If you have a photo of your family camped with your airplane at a public
lands airstrip, include that.
7) Do you currently volunteer for backcountry airstrip maintenance
work? If so, mention your commitment to participate in cooperative airstrip
maintenance between the users and the Federal Land managers.
8) Above all, be polite. Public land managers are people, too, and
deserve respectful treatment.
9) Be sure your address appears either at the top of the letter or
below your signature. Ask to be placed on future mailing lists. Include
your phone number.
The number of comments received by the BLM is as important as the quality.
Encourage your family and friends to write a short note why they want the
opportunity to fly to a recreational destination and enjoy the same
experience that others enjoy, but using a different mode of transportation.
*The deadline for comments is January 17, 2012*. Do not wait until the last
minute.
For questions, contact RAF BOD member Chuck Jarecki at:
cjarecki@theraf.org or phone 406-883-2248.
Let's show that the aviation community all across America is interested in
this plan by overwhelming the BLM with positvie aviation comments.
*Recreational Aviation Foundation*
1711 West College Street
Bozeman, MT 59715-4913
United States
406-582-1RAF (406-582-1723)
theraf.org<http://theraf.org/sites/all/modules/civicrm/extern/url.php?u=2
93&qid=66623>
Join Team RAF!
RAF Mission:
=93Keeping the legacy of recreational aviation strong by preserving,
maintaining and creating public use recreational and backcountry airstrips
nationwide=94
------------------------------
Click here to unsubscribe from RAF
Emails<http://theraf.org/index.php?q=civicrm/mailing/optout&reset=1&jid
=427&qid=66623&h=f38de675bae6b93b>
Message 5
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| Subject: | Re: Dynon Skyview Airspeed Calibration... |
At 07:39 PM 12/26/2011 Monday, Matt Dralle wrote:
>Dear Listers,
>
>I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now and
it seems like the airspeed is reading maybe 10mph fast. The GS always reads
10mph or more slower than the True airspeed, no matter which way I fly with respect
to the current wind. Looking through the configuration options on the Skyview,
I'm not seeing parameters to calibrate the airspeed. If the airspeed
were *slow* compared to the GS, I could envision making adjustments to the Pitot
tube to get it in better alignment with slipstream. But *fast* is a head scratcher.
If there's no electronic configuration parameters to adjust, what do
you do? Are there Pitot line "attenuators" like for RF in coax? ;-)
>
>Matt
Listers,
Thank you for all the great suggestions on resolving this airspeed issue! I took
a look at the static ports on the RV-6 today and found that they are done using
a flush head screw with a hole drilled in the center on either side of the
fuselage. They do *not* protrude from the side of the plane at all. They are
totally flush (see attached picture). Just for fun, I whipped up a couple
of quick test deals using a 3/16" washer and some electrical tape. I poked a
1/16" hole in the center of the tape and then put the washer centered over the
static ports on both sides of the fuselage (see attached pictures). Then, I
went flying on this beautiful December 27 day in California!
I didn't have time to do any real scientific multi-leg testing, but I was amazed
that the True Airspeed is now falling in a much more believable range compared
to the GPS-derived ground speed. On one cross-country leg, I had an exactly
90 degree crosswind component and the True Airspeed and GPS Ground Speed were
tracking exactly the same. Yahoo!
Obviously I need to do some additional, more scientific measurements and probably
come up with a slightly more "permanent" washer arrangement, but the early
returns are very promising! :-)
Thanks again for all the great feedback!
Matt
-
Matt "Red Dawg" Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
Message 6
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| Subject: | Dynon Skyview vs. GRT HX EFIS... |
>At 09:47 PM 12/27/2011 Tuesday, you wrote:
>I have looked at the Dynon stuff up at Arlington Air Show the past two years
>and really like the looks of them. They added autopilot and said last year
>that they were about to announce communications added to their system. A
>single 10" screen to do everything would be pretty easy to install learn to
>operate. Mostly Dynon looks best in the magazines. I guess you get used to
>any of them or they would not all still be in business.
>Pete
I have a Dynon 10" Skyview in the RV-6:
http://www.mattsrv6.com/users/display_log.php?user=MattsRV6&project 43&category=0&log=138164&row=45
http://www.mattsrv6.com/users/display_log.php?user=MattsRV6&project 43&category=0&log=138163&row=46
and a triple GRT HX setup in the RV-8:
http://www.mattsrv8.com/users/display_log.php?user=MattsRV8&project=638&category=2973&log'376&row=134
http://www.mattsrv8.com/users/display_log.php?user=MattsRV8&project=638&category=2973&log'375&row=135
I've flown the GRT HX setup about 170 hours and the Dynon Skyview system about
45 hours now.
Which do I prefer? That's a tough call. There are parts about each system that
I like a lot...
The installation and configuration of the Dynon is easier. Instructions are also
better. The network cable interconnect system that Dynon uses (I think it
is just RS485, but it works well) is also a no-brainer to install. Their display
(PFD/Engine/Map) are definitely very pretty and demo well.
The GRT is a little harder to get installed, the manual is a little sketchy in
places and there are a LOT of configuration options that can seem daunting at
first. BUT, there is power and utility in those options. If you use them to
your advantage, you can probably do more, better on the GRT compared to the Dynon.
The displays on the GRT don't have the "3D-y", "Windows-y" look to them.
BUT, I think I'm preferring that at this point. Doing a scan on the GRT looking
for something out of the ordinary is quicker and more accurate. I also like
the PFD layout and operation on the GRT better. It feels more "accurate"
and "believable" to me for some reason. I never quite "trust" what I'm seeing
on the Dynon for some reason and I don't know why. Maybe I just need more time
on the Dynon.
So, the Dynon has it for Installation and Configuation, but the GRT has it for
Operation and Presentation as far as I'm concerned. If I was building a new plane,
I think that I would probably go with the GRT. But its a close race. I
really like the Dynon system too.
I guess I'm saying if you're in the market for a full-featured EFIS system, give
GRT and Dynon both very close look before you make your selection. In my opinion,
it comes down to personal preferences in a few select areas on which way
to go. Both systems are top notch.
BTW, Dynon's autopilot add-on for the Skyview which I have in the RV-6 works well.
Its a good autopilot that does the job. The servos are the same as with
the TruTrak system. In the RV-8, I have the TruTrak Digiflight II VSGV system.
The TruTrak is a smoother, more accurate autopilot in my opinion, and I would
go that route again. But, it also costs quite a bit more than just adding
servos to the Dynon or GRT.
$.02
-
Matt "Red Dawg" Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
Message 7
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| Subject: | Dynon Skyview Airspeed Calibration... |
Matt,
Been trying to shoot a note out while on the road, with no success. In the
meantime, you've gotten some good info, and sounds like you're making
progress with testing. Here's what I wrote...just a little more data from
the field:
As the others said, sounds like a possible static port issue. Also agree it
could be OAT, depending on whether the error is there at all speeds or just
high speeds. Or it could be a bit of both.
On the static port...that rivet fix sounds like a great idea. A buddy did it
another way (though I like that rivet idea). My bud used AN-960 washers to
build up the lip on the static ports on his F1 Rocket. In his case, he
actually cut the washer in half, and glued it around the forward half of his
port. He played with thickness until his TAS was very close to his GPS
speeds (multi-leg test). You could probably experiment with -6, -8 and -10
washers, thin and thick washers, sanding or grinding the edges down a bit to
soften the corner, and full or half washers, to see what gets you the
closest. Painting it afterwards could have a slight impact too, so consider
that as well.
On the OAT, I've found that my TAS error increases the faster I
go...typically between 2.5-4 knots high. I did a test once, slowing from 170
to 70 and then accelerating back to 170 (KIAS, level flight). My OAT
decreased 5 degrees as I slowed, then increased back to the original temp as
I accelerated. So my OAT during max speed tests is inducing an error from
Ram Rise (small, but there). Mine is under the H-Stab on the side of the
fuse. Another Rocket gent saw the same effect with his OAT probe on the
aileron bellcrank inspection panel. He built a bracket and mounted it inside
the same panel (left the hole there, just "retracted" the probe inside it,
if you will, and found the probe still worked and the Ram Rise error went
away. I may try that on my tail-mounted probe as well.
Good luck chasing it!
Cheers,
Bob (Nasty)
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Matt Dralle
Sent: Monday, December 26, 2011 7:39 PM
Subject: RV-List: Dynon Skyview Airspeed Calibration...
Dear Listers,
I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now
and it seems like the airspeed is reading maybe 10mph fast. The GS always
reads 10mph or more slower than the True airspeed, no matter which way I fly
with respect to the current wind. Looking through the configuration options
on the Skyview, I'm not seeing parameters to calibrate the airspeed. If the
airspeed were *slow* compared to the GS, I could envision making adjustments
to the Pitot tube to get it in better alignment with slipstream. But *fast*
is a head scratcher. If there's no electronic configuration parameters to
adjust, what do you do? Are there Pitot line "attenuators" like for RF in
coax? ;-)
Matt
-
Matt "Red Dawg" Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 42+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
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