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Altimeter

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riddon(at)sent.com
Guest

Posted: Tue Dec 15, 2009 4:03 am Post subject: Altimeter

My altimeter seems to be reading about 150ft. too high.  I wondered if anyone who has upgraded to a glass panel may have their old steam driven one for sale?  Please contact me off forum if so.   

   

Richard Iddon.  

G-RIXS  

       [quote][b]

Brian Davies

Joined: 10 Jan 2006
Posts: 124
Location: uk

Posted: Tue Dec 15, 2009 4:35 am Post subject: Altimeter

Hi Richard,

  

 Most altimeters have a way of adjusting the link between the  pressure setting and the altitude indication.  This does not normally  require any dismantling of the altimeter.  What Make/type of altimeter do  you have?

  

 Regards

  

 Brian Davies



   From: owner-europa-list-server(at)matronics.com  [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Richard  Iddon

Sent: 15 December 2009 12:02

To:  europa-list(at)matronics.com

Subject: Europa-List:  Altimeter

 

  

My altimeter seems to be reading about 150ft. too  high.  I wondered if anyone who has  upgraded to a glass panel may have their old steam driven one for sale?  Please  contact me off forum if so.  

  

Richard Iddon. 

G-RIXS

 	  Quote: 	
		  



href="http://www.aeroelectric.com">www.aeroelectric.com

href="http://www.buildersbooks.com">www.buildersbooks.com

href="http://www.homebuilthelp.com">www.homebuilthelp.com

href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Europa-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com



	
No virus found in this incoming  message. Checked by AVG - www.avg.com  270.14.108/2565 - Release Date: 12/14/09 19:40:00    [quote][b]

riddon(at)sent.com
Guest

Posted: Tue Dec 15, 2009 6:05 am Post subject: Altimeter

Brian,  

   

It is a Wultrad I believe. It has been perfectly fine for five years but since the aircraft has been laid up for a while, it seems to be over reading.  My house is approx 50ft. above sea level but the altimeter is reading 200 at todays pressure from local airfields.   

   

Richard..   

   

   

-----Original Message-----

 From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Brian Davies

 Sent: 15 December  2009 12:21

 To: europa-list(at)matronics.com

 Subject: RE: Europa-List: Altimeter  

   

Hi Richard,  

   

Most altimeters have a way of adjusting the link between the pressure setting and the altitude indication.  This does not normally require any dismantling of the altimeter.  What Make/type of altimeter do you have?  

   

Regards  

   

Brian Davies  

       

  

From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Richard Iddon

 Sent: 15  December 2009 12:02

 To: europa-list(at)matronics.com

 Subject: Altimeter  

My altimeter seems to be reading about 150ft. too high.  I wondered if anyone who has upgraded to a glass panel may have their old steam driven one for sale?  Please contact me off forum if so.   

   

Richard Iddon.  

G-RIXS   	  Quote: 	
		    href="http://www.aeroelectric.com">www.aeroelectric.comhref="http://www.buildersbooks.com">www.buildersbooks.comhref="http://www.homebuilthelp.com">www.homebuilthelp.comhref="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Europa-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com 	
  

No virus found in this incoming message. Checked by AVG - www.avg.com 270.14.108/2565 - Release Date: 12/14/09 19:40:00    	  Quote: 	
		           -- Please Support Your Lists This Month --           (And Get Some AWESOME FREE Gifts!)   November is the Annual List Fund Raiser.  Click on   the Contribution link below to find out more about   this year's Terrific Free Incentive Gifts provided   by:     * AeroElectric www.aeroelectric.com     * The Builder's Bookstore www.buildersbooks.com     * HomebuiltHELP www.homebuilthelp.com   List Contribution Web Site:   --> http://www.matronics.com/contribution   Thank you for your generous support!                              -Matt Dralle, List Admin.          - The Europa-List Email Forum -   --> http://www.matronics.com/Navigator?Europa-List               - MATRONICS WEB FORUMS -   --> http://forums.matronics.com 	


     

No virus found in this incoming message.

 Checked by AVG - www.avg.com

 12/14/09 19:40:00

   [quote][b]

ptag.dev(at)tiscali.co.uk
Guest

Posted: Tue Dec 15, 2009 6:10 am Post subject: Altimeter

Hi! Richard……My heart took a beat faster until I realized you were asking for Altimeter and not DI !  

I have a DI which is due for the chop to make room for my TruTrak Pictorial Pilot !  

Should you know anyone needing a DI send them my way please.  

Regards  

Bob Harrison.  

         

  

From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Richard Iddon

 Sent: 15 December 2009 12:02

 To: europa-list(at)matronics.com

 Subject: Europa-List: Altimeter  

  

   

My altimeter seems to be reading about 150ft. too high.  I wondered if anyone who has upgraded to a glass panel may have their old steam driven one for sale?  Please contact me off forum if so.   

   

Richard Iddon.  

G-RIXS   	  Quote: 	
		           -- Please Support Your Lists This Month --           (And Get Some AWESOME FREE Gifts!)   November is the Annual List Fund Raiser.  Click on   the Contribution link below to find out more about   this year's Terrific Free Incentive Gifts provided 	
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       [quote][b]

davidjoyce(at)doctors.org
Guest

Posted: Tue Dec 15, 2009 8:48 am Post subject: Altimeter

Richard, You are actually required to keep a steam age altimeter & ASI if 

you convert to glass so that won't be a source for you, but I would be 

surprised if you cannot adjust it. My Gliding club has a machine for 

checking altimeters at the time of C of A renewal and as I remember it they 

were all expected to be adjustable. Regards, David

---

mikenjulie.parkin(at)btin
Guest

Posted: Tue Dec 15, 2009 11:55 am Post subject: Altimeter

Richard,  

   

Most analogue altimeters adjust in a similar way.  Set the altimeter reading to your  current altitude, at the side of the millibar setting knob you should see a small screw.  Loosen the screw a couple of turns until you are able to pull out the adjusting knob (normally about 2 mm) set the current QNH, push the knob back in and re-secure the locking screw.  The method is bit like pulling out the adjuster on your wrist watch to adjust the time.  

   

Regards,  

   

Mike  

   

Do not archive  

   

   

       

From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Richard Iddon

 Sent: 15 December 2009 12:02

 To: europa-list(at)matronics.com

 Subject: Altimeter  

  

  

   

My altimeter seems to be reading about 150ft. too high.  I wondered if anyone who has upgraded to a glass panel may have their old steam driven one for sale?  Please contact me off forum if so.   

   

Richard Iddon.  

G-RIXS  [quote] [b]

riddon(at)sent.com
Guest

Posted: Tue Dec 15, 2009 11:55 am Post subject: Altimeter

David.  Ah.  OK.  Actually I went back to the offending object to see if

it was adjustable and discovered that in fact it was 2000 ft out, not

200!! Shows how long I have been out of the loop. Looks like I will have

to splash out on a new one. 



Richard Iddon G-RIXS

Subject: Re: Altimeter




<davidjoyce(at)doctors.org.uk>



Richard, You are actually required to keep a steam age altimeter & ASI

if 

you convert to glass so that won't be a source for you, but I would be 

surprised if you cannot adjust it. My Gliding club has a machine for 

checking altimeters at the time of C of A renewal and as I remember it

they 

were all expected to be adjustable. Regards, David

davidjoyce(at)doctors.org
Guest

Posted: Tue Dec 15, 2009 12:23 pm Post subject: Altimeter

Richard, If you are that far out it suggests to me that you have a problem 

in the plumbing - something like a solitary bee nesting up the pitot, who 

has sealed the other end up to stop draughts!? Regards, David

---

ami(at)mcfadyean.freeserv
Guest

Posted: Tue Dec 15, 2009 12:40 pm Post subject: Altimeter

Richard,

 Why not just reset the subscale. Details  at:

 http://www.falcongauge.com/PDFs/instructions/altimeteradjust.pdf

 You don't have to take the instrument out of the  panel for this.

  

 Duncan McF.

 [quote]   ---

johnwigney(at)windstream.
Guest

Posted: Wed Dec 16, 2009 9:45 am Post subject: Altimeter

Hi Richard,



I think this could be one of those cases of "you get what you pay for". 

You may or may not be aware that Wultrad/Falcon equipment is Chinese. 

Anyway, there is some discussion of altimeter problems at 

http://groups.google.com/group/rec.aviation.homebuilt/browse_thread/thread/2b9ec87c6a82fb43 

This is hearsay but I understand that maintenance shops in the US will 

not touch these items. Another story is that ASI dial markings have been 

individually custom painted to match the gauge calibration rather than 

calibrating the gauge to match the markings.



Cheers, John



ORIGINAL MESSAGE



From: "Richard Iddon" <riddon(at)sent.com>

Subject: RE: Altimeter

Brian,

It is a Wultrad I believe. It has been perfectly fine for five years but

since the aircraft has been laid up for a while, it seems to be over

reading.  My house is approx 50ft. above sea level but the altimeter is

reading 200 at todays pressure from local airfields. 

Richard.. 



--

air.guerner(at)orange.fr
Guest

Posted: Thu Dec 17, 2009 4:15 am Post subject: Altimeter

Regarding altimeter errors, I had an  interresting experience last month:

  

 I had removed my instrument panel module for  working on my autopilot installation. As my altimeter (United) has  been consistently showing a 2 to 2.5 millibars error for the last few years, I  took this opportunity to remove it and take it to an instrument shop for repair.  After overhaul I checked it was ok, then I install it back on the panel.  The next day, I was surprised to discover that the altimeter was wrong about 4  millibars, worse than before the overhaul!  I removed it again from the  panel, and was ready to take it back to the instrument shop when I  found that the indication was now correct. After some thinking I realized  what happened: my instrument panel module is fitted with quick disconnect  fittings for both the static and pitot lines.Those fittings have a shut-off  valve. Therefore, when the panel is removed, the altimeter is not connected to  the ambiant static pressure anymore, and a change in the atmospheric  pressure will not be seen by the altimeter, but, due to the thermal expansion of  the air trapped inside the line, any change of the temperature  will!    

 Most Europas are fitted with those quick disconnect  fittings at the port wing root. So when your fuselage is at home on the trailer,  do not be fooled by the altimeter indication!

  

 Richard, 

 Might be the reason of your problem. Please let us  know.

 Regards

 Remi Guerner

  

  

 <<<<<<<<<<It is a Wultrad I believe. It has  been perfectly fine for five years but

since the aircraft has been laid up  for a while, it seems to be over

reading.  My house is approx 50ft.  above sea level but the altimeter is

reading 200 at todays pressure from  local airfields. 

Richard.. >>>>>>>>>



  

  

     [quote][b]

riddon(at)sent.com
Guest

Posted: Thu Dec 17, 2009 6:50 am Post subject: Altimeter

Hi Remi.  

   

No. I took the altimeter out of the panel and completely disconnected it and it is still showing 2000ft. at sea level.  The message that John Wigney sent me pointed to a discussion site which explains that these altimeters are prone to failure.  I have now got another one which I hope will be OK.  Thanks for all the posts.  

   

Richard Iddon G-RIXS  

   

-----Original Message-----

 From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Remi Guerner

 Sent: 17 December 2009 12:12

 To: Europa-List Digest Server

 Subject: Altimeter  

     

Regarding altimeter errors, I had an interresting experience last month:  

    

   

    

I had removed my instrument panel module for working on my autopilot installation. As my altimeter (United) has been consistently showing a 2 to 2.5 millibars error for the last few years, I took this opportunity to remove it and take it to an instrument shop for repair. After overhaul I checked it was ok, then I install it back on the panel. The next day, I was surprised to discover that the altimeter was wrong about 4 millibars, worse than before the overhaul!  I removed it again from the panel, and was ready to take it back to the instrument shop when I found that the indication was now correct. After some thinking I realized what happened: my instrument panel module is fitted with quick disconnect fittings for both the static and pitot lines.Those fittings have a shut-off valve. Therefore, when the panel is removed, the altimeter is not connected to the ambiant static pressure anymore, and a change in the atmospheric pressure will not be seen by the altimeter, but, due to the thermal expansion of the air trapped inside the line, any change of the temperature will!      

    

Most Europas are fitted with those quick disconnect fittings at the port wing root. So when your fuselage is at home on the trailer, do not be fooled by the altimeter indication!  

    

   

    

Richard,   

    

Might be the reason of your problem. Please let us know.  

    

Regards  

    

Remi Guerner  

    

   

  

     

No virus found in this incoming message.

 Checked by AVG - www.avg.com

 12/16/09 19:52:00

   [quote][b]

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