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pequeajim
Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA
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 Posted: Sun Mar 01, 2009 6:19 pm Post subject: Determining IAS |
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Gary, you made me thing of a question with your last post.
How do you guys calibrate, or verify the indicated airspeed of your instruments, be it a steam gage or your EFIS.
Flying along with another airplane that has a known correct reading?
Using a GPS and flying a course, (ugg…)
Jim!
[quote][b]
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dashvii(at)hotmail.com
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| Posted: Sun Mar 01, 2009 6:40 pm Post subject: Determining IAS |
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Jim C
There are several ways to do this. You can fly formation with another plane that has been calibrated which has been done. You can fly a known GPS course but you have to negate the winds. You can also fly a wind star or wind triangle with the GPS and you should be able to average those out to negate the effects of the winds. These are probably the most common methods C if any C that are used for airspeed calibration in the Lightning. There is also a method called an airspeed bomb (trailing cone) that some big manufacturers use. My favorite is the air data booms that you see on many new aircraft. It looks like a really long pitot tube. Some have the ability to measure AOA and sideslip. This will allow you to take more data points to see things such as what AOA that your aircraft stalls C lowest drag AOA = max range cruise speed C etc. These are just off the top of my head. All my flight testing and AE books are in the attic right now or I'd see what they have to say. Hope this helps. Brian W.
From: pequeajim(at)gmail.com
To: lightning-list(at)matronics.com
Subject: Lightning-List: Determining IAS
Date: Sun C 1 Mar 2009 21:18:23 -0500
.ExternalClass p.EC_MsoNormal C .ExternalClass li.EC_MsoNormal C .ExternalClass div.EC_MsoNormal {margin-bottom:.0001pt;font-size:11.0pt;font-family:'Calibri' C'sans-serif';} .ExternalClass a:link C .ExternalClass span.EC_MsoHyperlink {color:blue;text-decoration:underline;} .ExternalClass a:visited C .ExternalClass span.EC_MsoHyperlinkFollowed {color:purple;text-decoration:underline;} .ExternalClass span.EC_EmailStyle17 {font-family:'Calibri' C'sans-serif';color:windowtext;} .ExternalClass .EC_MsoChpDefault {;} (at)page Section1 {size:8.5in 11.0in;} .ExternalClass div.EC_Section1 {page:Section1;}
Gary C you made me thing of a question with your last post.
How do you guys calibrate C or verify the indicated airspeed of your instruments C be it a steam gage or your EFIS.
Flying along with another airplane that has a known correct reading?
Using a GPS and flying a course C (ugg…)
Jim!
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st">http://www.matronics.com/Navigator?Lightning-List
ronics.com
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pequeajim
Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA
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| Posted: Sun Mar 01, 2009 7:24 pm Post subject: Determining IAS |
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Thanks Brian:
Good information.
Jim!
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of Brian Whittingham
Sent: Sunday, March 01, 2009 9:40 PM
To: lightning-list(at)matronics.com
Subject: RE: Determining IAS
Jim,
There are several ways to do this. You can fly formation with another plane that has been calibrated which has been done. You can fly a known GPS course but you have to negate the winds. You can also fly a wind star or wind triangle with the GPS and you should be able to average those out to negate the effects of the winds. These are probably the most common methods, if any, that are used for airspeed calibration in the Lightning. There is also a method called an airspeed bomb (trailing cone) that some big manufacturers use. My favorite is the air data booms that you see on many new aircraft. It looks like a really long pitot tube. Some have the ability to measure AOA and sideslip. This will allow you to take more data points to see things such as what AOA that your aircraft stalls, lowest drag AOA = max range cruise speed, etc. These are just off the top of my head. All my flight testing and AE books are in the attic right now or I'd see what they have to say. Hope this helps. Brian W.
From: pequeajim(at)gmail.com
To: lightning-list(at)matronics.com
Subject: Determining IAS
Date: Sun, 1 Mar 2009 21:18:23 -0500
Gary, you made me thing of a question with your last post.
How do you guys calibrate, or verify the indicated airspeed of your instruments, be it a steam gage or your EFIS.
Flying along with another airplane that has a known correct reading?
Using a GPS and flying a course, (ugg…)
Jim!
| Quote: | | st">http://www.matronics.com/Navigator?Lightning-Listronics.comww.matronics.com/contribution |
Hotmail® is up to 70% faster. Now good news travels really fast. Find out more. 0123456789 | Quote: | | st">http://www.matronics.com/Navigator?Lightning-List |
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[quote][b]
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info(at)flylightning.net
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| Posted: Mon Mar 02, 2009 6:16 am Post subject: Determining IAS |
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Jim,
You can do a wind triangle or wind star to determine the TAS with a GPS. Most steam gauges ASI have a TAS ring you can paly with if you set it right than you can compare that to the TAS you are getting form the GPS rns and see if it is close.
nick
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of Jim Langley
Sent: Sunday, March 01, 2009 8:18 PM
To: lightning-list(at)matronics.com
Subject: Lightning-List: Determining IAS
Gary, you made me thing of a question with your last post.
How do you guys calibrate, or verify the indicated airspeed of your instruments, be it a steam gage or your EFIS.
Flying along with another airplane that has a known correct reading?
Using a GPS and flying a course, (ugg…)
Jim! | Quote: | | http://www.matronics.com/Navigator?Lightning-List |
0123456789
[quote][b]
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mark(at)flylightning.net
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| Posted: Mon Mar 02, 2009 7:08 am Post subject: Determining IAS |
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Jim,
You didn't seem too thrilled flying wind triangles so here's something else to try. Make yourself a manometer! Here's one link: http://www.eaa1000.av.org/technicl/instcal/instcal.htm and another: http://iflyez.com/manometer.shtml.
I might make one just for the fun of it.
Hope this helps.
Mark
[b]Mark Stauffer
Production Manager
Arion Aircraft
2842 Hwy 231 North
Shelbyville, TN 37160
(931) 680-1781 [/b]
[quote][b]
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IFLYSMODEL(at)aol.com
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| Posted: Mon Mar 02, 2009 7:47 am Post subject: Determining IAS |
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Hey Jim: After you read up on making and using a mono meter, you will understand why us simple minded pilots fly into and with the wind and do an average calculation.
Lynn
In a message dated 3/2/2009 10:09:17 A.M. Eastern Standard Time, mark(at)flylightning.net writes:
| Quote: | Jim,
You didn't seem too thrilled flying wind triangles so here's something else to try. Make yourself a manometer! Here's one link: http://www.eaa1000.av.org/technicl/instcal/instcal.htm and another: http://iflyez.com/manometer.shtml.
I might make one just for the fun of it.
Hope this helps.
Mark
[b]Mark Stauffer
Production Manager
Arion Aircraft
2842 Hwy 231 North
Shelbyville, TN 37160
(931) 680-1781 [/b]
| Quote: |
href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com
://www.matronics.com/contribution">http://www.matronics.com/contribution
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A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
[quote][b]
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pequeajim
Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA
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| Posted: Mon Mar 02, 2009 8:25 am Post subject: Determining IAS |
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Thanks everyone. In looking at the mono meter, I m wondering if i can also use it to make a martini?
On Mon, Mar 2, 2009 at 10:46 AM, <IFLYSMODEL(at)aol.com (IFLYSMODEL(at)aol.com)> wrote:
[quote] Hey Jim: After you read up on making and using a mono meter, you will understand why us simple minded pilots fly into and with the wind and do an average calculation.
Lynn
In a message dated 3/2/2009 10:09:17 A.M. Eastern Standard Time, mark(at)flylightning.net (mark(at)flylightning.net) writes:
A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
[b]
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Kayberg(at)AOL.COM
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| Posted: Mon Mar 02, 2009 8:32 am Post subject: Determining IAS |
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In a message dated 3/2/2009 11:25:56 A.M. Eastern Standard Time, pequeajim(at)gmail.com writes:
| Quote: | Thanks everyone. In looking at the mono meter, I m wondering if i can also use it to make a martini?
|
as long as it is shaken, not stirred.
dk
[quote][b]
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mark(at)flylightning.net
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| Posted: Mon Mar 02, 2009 9:33 am Post subject: Determining IAS |
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I'm pretty sure it can be easily converted into a beer bong that can be used at local tailgate parties! Maybe you can determine the speed of drinking in mph.
Mark
[quote] --
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pequeajim
Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA
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| Posted: Mon Mar 02, 2009 10:01 am Post subject: Determining IAS |
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“Maybe you can determine the speed of drinking in mph”
My radar gun doesn’t go that high!
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of Mark Stauffer
Sent: Monday, March 02, 2009 12:30 PM
To: lightning-list(at)matronics.com
Subject: RE: Determining IAS
I'm pretty sure it can be easily converted into a beer bong that can be used at local tailgate parties! Maybe you can determine the speed of drinking in mph.
Mark
[quote]
--
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pequeajim
Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA
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| Posted: Mon Mar 02, 2009 10:04 am Post subject: Determining IAS |
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Good point… This is why Mark is my hero. Like Kahn (from Star Trek fame), his is a superior mind…
(grin)
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of IFLYSMODEL(at)aol.com
Sent: Monday, March 02, 2009 10:46 AM
To: lightning-list(at)matronics.com
Subject: Re: Determining IAS
Hey Jim: After you read up on making and using a mono meter, you will understand why us simple minded pilots fly into and with the wind and do an average calculation.
Lynn
In a message dated 3/2/2009 10:09:17 A.M. Eastern Standard Time, mark(at)flylightning.net writes:
| Quote: |
Jim,
You didn't seem too thrilled flying wind triangles so here's something else to try. Make yourself a manometer! Here's one link: http://www.eaa1000.av.org/technicl/instcal/instcal.htm and another: http://iflyez.com/manometer.shtml.
I might make one just for the fun of it.
Hope this helps.
Mark
Mark Stauffer
Production Manager
Arion Aircraft
2842 Hwy 231 North
Shelbyville, TN 37160
(931) 680-1781
| Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com://www.matronics.com/contribution">http://www.matronics.com/contribution |
|
A Good Credit Score is 700 or Above. See yours in just 2 easy steps! 0123456789 | Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com |
0 | Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com |
1 | Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com |
2 | Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com |
3 | Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com |
4
[quote][b]
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info(at)flylightning.net
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| Posted: Mon Mar 02, 2009 10:14 am Post subject: Determining IAS |
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Yea, you know that general chang from Star trek VI is captain Von Trap from sound of music…thats a swing!
nick
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of Jim Langley
Sent: Monday, March 02, 2009 12:04 PM
To: lightning-list(at)matronics.com
Subject: RE: Lightning-List: Determining IAS
Good point… This is why Mark is my hero. Like Kahn (from Star Trek fame), his is a superior mind…
(grin)
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of IFLYSMODEL(at)aol.com
Sent: Monday, March 02, 2009 10:46 AM
To: lightning-list(at)matronics.com
Subject: Re: Lightning-List: Determining IAS
Hey Jim: After you read up on making and using a mono meter, you will understand why us simple minded pilots fly into and with the wind and do an average calculation.
Lynn
In a message dated 3/2/2009 10:09:17 A.M. Eastern Standard Time, mark(at)flylightning.net writes:
| Quote: |
Jim,
You didn't seem too thrilled flying wind triangles so here's something else to try. Make yourself a manometer! Here's one link: http://www.eaa1000.av.org/technicl/instcal/instcal.htm and another: http://iflyez.com/manometer.shtml.
I might make one just for the fun of it.
Hope this helps.
Mark
Mark Stauffer
Production Manager
Arion Aircraft
2842 Hwy 231 North
Shelbyville, TN 37160
(931) 680-1781
| Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com://www.matronics.com/contribution">http://www.matronics.com/contribution |
|
A Good Credit Score is 700 or Above. See yours in just 2 easy steps! | Quote: | | http://www.matronics.com/Navigator?Lightning-List |
0123456789 | Quote: | | href="http://www.matronics.com/Navigator?Lightning-List">http://www.matron.matronics.com/">http://forums.matronics.com |
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pennington(at)q.com
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| Posted: Mon Mar 02, 2009 1:08 pm Post subject: Determining IAS |
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<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> Hello Jim
On several occasions while flying, I've noted IAS as compared to GPS ground speed during conditions of little or no wind. The numbers are very close.
Gary
[quote] ---
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pequeajim
Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA
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| Posted: Mon Mar 02, 2009 1:22 pm Post subject: Determining IAS |
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Thanks Gary:
I know my IAS is reading off a little on my steam gauge. I just wanted to figure out how much. If I get it reading correctly, I can adjust my EIFS easily to match it.
All good information. Especially the beer bong…
Jim!
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of GARY PENNINGTON
Sent: Monday, March 02, 2009 4:06 PM
To: lightning-list(at)matronics.com
Subject: Re: Determining IAS
Hello Jim
On several occasions while flying, I've noted IAS as compared to GPS ground speed during conditions of little or no wind. The numbers are very close.
Gary
[quote]
---
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