Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Pitot Source

Matronics Email Lists Forum Index -> Kolb-List

View previous topic :: View next topic

Author Message

Leland.Lam

Joined: 19 Nov 2014
Posts: 20
Location: Phoenix, AZ

Posted: Fri May 29, 2015 10:35 am Post subject: Pitot Source

Ok Kolbers I have a dilemma that I need advice on. I am installing an MGL altimeter in my Mark III and it comes with the integrated ASI.  I already have an Airspeed indicator so the question becomes:

 1) Can a single Pitot ram air source be split to drive two ASI?

 2) Ignore the MGL ASI and use the old analog ASI already in the plane.

 3) Install an additional Pitot tube.



It would be nice to have a redundant system, but I am not really all that excited about installing another pitot tube.

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

ceengland7(at)gmail.com
Guest

Posted: Fri May 29, 2015 10:54 am Post subject: Pitot Source

On May 29, 2015 1:35:05 PM CDT, "Leland.Lam" <wadelamoreaux(at)gmail.com> wrote:[quote]  gator -- 

 Sent from my Android device with K-9 Mail. Please excuse my brevity.  [quote][b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

koxxy

Joined: 19 Oct 2011
Posts: 28
Location: Beaverton, OR

Posted: Fri May 29, 2015 11:34 am Post subject: Pitot Source

I have seen several specs for instruments that use pitot pressure saying that one pitot for several instruments is OK. Makes sense when you realize that a pitot system does not actually move air, but rather transmits pressure. The only downside is that you give up redundancy (clogged or disconnected tubing, leaking fittings).BTW, do not try to blow out obstructions without disconnecting the instrument(s). That goes for the static port as well.

On Fri, May 29, 2015 at 11:35 AM, Leland.Lam <wadelamoreaux(at)gmail.com (wadelamoreaux(at)gmail.com)> wrote:

[quote]--> Kolb-List message posted by: "Leland.Lam" <wadelamoreaux(at)gmail.com (wadelamoreaux(at)gmail.com)>

 

 Ok Kolbers I have a dilemma that I need advice on. I am installing an MGL altimeter in my Mark III and it comes with the integrated ASI.  I already have an Airspeed indicator so the question becomes:

 

 

  1) Can a single Pitot ram air source be split to drive two ASI?

  2) Ignore the MGL ASI and use the old analog ASI already in the plane.

  3) Install an additional Pitot tube.

 

 It would be nice to have a redundant system, but I am not really all that excited about installing another pitot tube.

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=442764#442764

 

 

 

 

 

 

 

 ===========

 -List" target="_blank">http://www.matronics.com/Navigator?Kolb-List

 ===========

  FORUMS -

 _blank">http://forums.matronics.com

 ===========

 b Site -

           -Matt Dralle, List Admin.

 target="_blank">http://www.matronics.com/contribution

 ===========

 

 

 

 [b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

stuart(at)harnerfarm.net
Guest

Posted: Fri May 29, 2015 12:01 pm Post subject: Pitot Source

If I were to have redundant ASI systems, I would not want them tied together

for the sake of redundancy.



Past experience: 



1) Forced the rear end of a bug into the pitot tube while on takeoff roll.

Airspeed was up, rotated and started climb out. Glanced back at ASI and it

was at 0!

I would want the second pitot tube several inches from the first so that a

really big butt bug couldn't plug them both. The odds of spearing a bug on

takeoff, fairly large. Spearing two on the same flight?



2) Child of passenger crawled under the wing and broke the pitot tube after

I had checked in on pre-flight. Little bugger "put it back" so as to cover

up the damage. It worked fine until we were in the air. In this case, the

kid probably would have busted two pitot tubes if he could have......



There is no substitute for the "seat of your pants".    



Stuart



--

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

Leland.Lam

Joined: 19 Nov 2014
Posts: 20
Location: Phoenix, AZ

Posted: Fri May 29, 2015 12:44 pm Post subject: Re: Pitot Source

Thank you for all of the replies. I was happy with just one ASI, but I needed an altimeter and since the MGL has the ASI built into it I was hoping to utilize this function.



I am flying in and out of a Class D under the Mode C veil of PHX, so I have had to add a few things into the airplane to keep the controllers happy.  



Many thanks to you all,



Leland

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Fri May 29, 2015 4:19 pm Post subject: Pitot Source

How does one tell airspeed by the seat of their pants?



john h

mkIII

Meridian, MS



 

There is no substitute for the "seat of your pants".    



Stuart

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

lcottrell

Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or

Posted: Fri May 29, 2015 5:00 pm Post subject: Pitot Source

I tell by how big a bite I am taking out of my shorts.  It helps to err on the side of TOO FAST. :-)Larry

On Fri, May 29, 2015 at 6:18 PM, John Hauck <jhauck(at)elmore.rr.com (jhauck(at)elmore.rr.com)> wrote:

 	  Quote: 	
		  --> Kolb-List message posted by: "John Hauck" <jhauck(at)elmore.rr.com (jhauck(at)elmore.rr.com)>

 

 How does one tell airspeed by the seat of their pants?

 

 john h

 mkIII

 Meridian, MS

 

 

 

 

 There is no substitute for the "seat of your pants".    

 

 Stuart

 

 

 

 

 

 

 

 ===========

 -List" target="_blank">http://www.matronics.com/Navigator?Kolb-List

 ===========

  FORUMS -

 _blank">http://forums.matronics.com

 ===========

 b Site -

           -Matt Dralle, List Admin.

 target="_blank">http://www.matronics.com/contribution

 ===========

 

 

 

 	




-- 

If you forward this email, or any part of it, please remove my email address before sending.

 

  [quote][b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

_________________
do not archive

stuart(at)harnerfarm.net
Guest

Posted: Fri May 29, 2015 7:26 pm Post subject: Pitot Source

Yeah, when I smucked that bug with the pitot, I must have been doing 90 MPH when the Chief got back to earth. J

 

Actually, probably not. Years later, I realized that after the runway was made, I never look at the ASI. It took a question from a fellow pilot about what speed I touch down at. I realized I couldn’t answer it because I never look at the panel when I touch down, I am concentrating on the runway at that moment. I have to force myself to look inside.

 

Stuart

 

From: owner-kolb-list-server(at)matronics.com [mailto:owner-kolb-list-server(at)matronics.com] On Behalf Of Larry Cottrell

Sent: Friday, May 29, 2015 8:00 PM

To: kolb-list(at)matronics.com

Subject: Re: Pitot Source

 

I tell by how big a bite I am taking out of my shorts.  It helps to err on the side of TOO FAST. 

Larry



 

 

On Fri, May 29, 2015 at 6:18 PM, John Hauck <jhauck(at)elmore.rr.com (jhauck(at)elmore.rr.com)> wrote:

--> Kolb-List message posted by: "John Hauck" <jhauck(at)elmore.rr.com (jhauck(at)elmore.rr.com)>



How does one tell airspeed by the seat of their pants?



john h

mkIII

Meridian, MS





There is no substitute for the "seat of your pants".    



Stuart



===========

-List" target="_blank">http://www.matronics.com/Navigator?Kolb-List

===========

FORUMS -

_blank">http://forums.matronics.com

===========

b Site -

          -Matt Dralle, List Admin.

target="_blank">http://www.matronics.com/contribution

===========

 



-- 

If you forward this email, or any part of it, please remove my email address before sending.



 	  Quote: 	
		    http://www.matronics.com/Navigator?Kolb-List 	
0 	  Quote: 	
		   	
1 	  Quote: 	
		   	
2 	  Quote: 	
		   	
3 	  Quote: 	
		   	
4 	  Quote: 	
		   	
5 	  Quote: 	
		   	
6 	  Quote: 	
		   	
7

  [quote][b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

stuart(at)harnerfarm.net
Guest

Posted: Fri May 29, 2015 7:26 pm Post subject: Pitot Source

The friction causes them to heat up. 



Altitude too:

Grass stains mean you were too low and ice means you were too high.



Attitude too:

Sun burn means you were upside down. Brown stains means, well you can

imagine that one!



Stuart

--

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Kolb-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum