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pitot tube

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slyck(at)frontiernet.net
Guest

Posted: Wed Feb 01, 2006 8:32 pm Post subject: pitot tube

Don't know if you are speaking of the length of the probe

or the tubing going to the cabin instrument.  The probe

can be any length.  The tubing also. -within reason, not talking miles 

here.

Pressure drop of a fluid in a pipe (air being also a fluid)

is a function of cross section times distance traveled.

The diff in a pitot static system is that there is no flow,

hence no pressure drop.

-BB

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David.Lehman

Joined: 10 Jan 2006
Posts: 265
Location: "Lovely" Fresno CA

Posted: Thu Feb 02, 2006 6:26 am Post subject: pitot tube

Thanx Bob, it's the tube itself and I figured it didn't matter...



DVD



On 2/1/06, robert bean <slyck(at)frontiernet.net> wrote:

 	  Quote: 	
		  

 



   Don't know if you are speaking of the length of the probe

 or the tubing going to the cabin instrument.  The probe

 can be any length.  The tubing also. -within reason, not talking miles

 here.

 Pressure drop of a fluid in a pipe (air being also a fluid)

 is a function of cross section times distance traveled.

 The diff in a pitot static system is that there is no flow,

 hence no pressure drop.

 -BB





 do not archive

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George Myers

Joined: 10 Jan 2006
Posts: 76
Location: San Marcos, Texas

Posted: Thu Feb 02, 2006 7:12 am Post subject: pitot tube

They only say that to make us feel better...

Do Not Archive 

 

----

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David.Lehman

Joined: 10 Jan 2006
Posts: 265
Location: "Lovely" Fresno CA

Posted: Thu Feb 02, 2006 5:23 pm Post subject: Re: pitot tube

 	  slyck(at)frontiernet.net wrote: 	
		  Don't know if you are speaking of the length of the probe

or the tubing going to the cabin instrument.  The probe

can be any length.  The tubing also. -within reason, not talking miles 

here.

Pressure drop of a fluid in a pipe (air being also a fluid)

is a function of cross section times distance traveled.

The diff in a pitot static system is that there is no flow,

hence no pressure drop.

-BB 	




Bob...



Here's a "duh"...  Given what you wrote, I really don't need the "tube" because the bulkhead fitting is forward of the nose about 7/8" and should be in undisturbed air?...



Thanx...



DVD

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ô¿ô

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jhankin(at)planters.net
Guest

Posted: Mon Feb 06, 2006 5:09 am Post subject: Pitot Tube

With my Firefly on the ground the pitot tube is almost level, with it in 

flying attitude the tube is a good bit down.  Will this affect the 

performance of the air speed indicator.  It is now in the middle of the nose 

cone.



Jimmy Hankinson

912-863-7384

Firefly 035

JYL (Sylvania)

Pegasus Field (Home)

2000 Feet X 100 Feet- Grass

Rocky Ford, Georgia

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Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Mon Feb 06, 2006 7:41 am Post subject: Pitot Tube

Mine is slightly pointing down while on the ground and it works OK. It 

is below the nose bowl by several inches and slightly aft of the front end.



Richard Pike

MKIII N420P (420ldPoops)



Jimmy wrote:

 	  Quote: 	
		   



 With my Firefly on the ground the pitot tube is almost level, with it in 

 flying attitude the tube is a good bit down.  Will this affect the 

 performance of the air speed indicator.  It is now in the middle of the nose 

 cone.



 Jimmy Hankinson

 912-863-7384

 Firefly 035

 JYL (Sylvania)

 Pegasus Field (Home)

 2000 Feet X 100 Feet- Grass

 Rocky Ford, Georgia

 Do Not Archive

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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:

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_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0

Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.

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