 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
davidjoyce(at)doctors.org
Guest
|
 Posted: Wed Jan 24, 2018 12:42 pm Post subject: Heated pitot |
 |
|
A year or so ago I remember reading someone's account of designing his own heated pitot tube using only v. modest amounts of electricity. I thought I had carefully filed the article but cannot find it. Does anyone have the details or know what progress has been made?
Regards, David Joyce, GXSDJ
| | - The Matronics Europa-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?Europa-List |
|
|
|
| Back to top |
|
 |
paul.the.aviator(at)gmail
Guest
|
| Posted: Wed Jan 24, 2018 1:46 pm Post subject: Heated pitot |
|
|
I downloaded this document written by Eric M. Jones describing a low energy heated pitot tube. It was on my "to do" list but I never got around to it.
On Wed, Jan 24, 2018 at 2:41 PM, <davidjoyce(at)doctors.org.uk (davidjoyce(at)doctors.org.uk)> wrote:
| Quote: |
Â
A year or so ago I remember reading someone's account of designing his own heated pitot tube using only v. modest amounts of electricity. I thought I had carefully filed the article but cannot find it. Does anyone have the details or know what progress has been made?Â
Regards, David Joyce, GXSDJ Â
|
| | - The Matronics Europa-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?Europa-List |
|
| Description: |
|
Download |
| Filename: |
thermopitot.pdf |
| Filesize: |
154.65 KB |
| Downloaded: |
353 Time(s) |
|
|
| Back to top |
|
|
davidjoyce(at)doctors.org
Guest
|
| Posted: Wed Jan 24, 2018 3:24 pm Post subject: Heated pitot |
|
|
Paul, Many thanks but I seem to have only got a picture with no text. Regards, David
On 2018-01-24 21:46, Paul McAllister wrote: | Quote: | I downloaded this document written by Eric M. Jones describing a low energy heated pitot tube. It was on my "to do" list but I never got around to it.
On Wed, Jan 24, 2018 at 2:41 PM, <davidjoyce(at)doctors.org.uk (davidjoyce(at)doctors.org.uk)> wrote: | Quote: |
A year or so ago I remember reading someone's account of designing his own heated pitot tube using only v. modest amounts of electricity. I thought I had carefully filed the article but cannot find it. Does anyone have the details or know what progress has been made?
Regards, David Joyce, GXSDJ
|
|
| | - The Matronics Europa-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?Europa-List |
|
|
|
| Back to top |
|
|
budyerly(at)msn.com
Guest
|
| Posted: Wed Jan 24, 2018 7:29 pm Post subject: Heated pitot |
|
|
Paul,
I really like and use Eric’s stuff!
I last talked to Eric about 6 years ago, he hasn’t finished his pitot heater. It was self regulating by use of the PTCs and he never finished as there were some issues. The FAA test is to freeze water in the pitot at 40 below and see if the heat clears it within some short time set by the Feds. He and I talked about it, I felt it would be worth it for those light snow and drizzle days, but I don’t fly in that anymore so I dropped the idea also.
All the 7-10 amp ones (Dynon/Gretz etc.) in Aircraft Spruce for experimentals work OK. Just 7 amps! I’ve installed three. They do have a PTC type circuit to limit the amps to what is required so they are somewhat reasonable to install. I would recommend a second alternator though.
Regards,
Bud Yerly
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
________________________________
From: owner-europa-list-server(at)matronics.com <owner-europa-list-server(at)matronics.com> on behalf of Paul McAllister <paul.the.aviator(at)gmail.com>
Sent: Wednesday, January 24, 2018 4:46:27 PM
To: europa-list(at)matronics.com
Subject: Re: Heated pitot
I downloaded this document written by Eric M. Jones describing a low energy heated pitot tube. It was on my "to do" list but I never got around to it
| | - The Matronics Europa-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?Europa-List |
|
|
|
| Back to top |
|
|
Nigel Graham
Joined: 23 Mar 2017
Posts: 36
Location: Winchester - UK
|
| Posted: Thu Jan 25, 2018 3:39 am Post subject: Re: Heated pitot |
|
|
| davidjoyce(at)doctors.org wrote: | A year or so ago I remember reading someone's account of designing his own heated pitot tube using only v. modest amounts of electricity. I thought I had carefully filed the article but cannot find it. Does anyone have the details or know what progress has been made?
Regards, David Joyce, GXSDJ |
David, Attached is the article I think you're referring to.
Nigel
| | - The Matronics Europa-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?Europa-List |
|
| Description: |
|
Download |
| Filename: |
Heated Pitot Design.pdf |
| Filesize: |
154.65 KB |
| Downloaded: |
368 Time(s) |
|
|
| Back to top |
|
|
graeme bird
Joined: 15 Jul 2010
Posts: 434
|
| Posted: Thu Jan 25, 2018 9:08 am Post subject: Re: Heated pitot |
|
|
I have a design based on the standard tube. It's proportional with a max of 1.6 amps. I put the mod 2 form in and made a prototype. Laa said I'd need to prove that it didn't affect the airspeed readings etc. It uses a nichrome wire wound on kapton sleeved in glass fibre needs 4 wires to the control circuit ( under pilot seat)
| | - The Matronics Europa-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?Europa-List |
|
| Description: |
|
| Filesize: |
158.07 KB |
| Viewed: |
5219 Time(s) |
|
_________________
Graeme Bird
kit4 (Wagstaff) TBD
Kit3 G-CLXU (Gregory) mono 914 xs Woodcomp
Kit2 G-PATS - (kesterton) Mono Classic 912 warpdrive
Kit 1 G-UMPY - Mono Classic/XS 912S, Woodcomp G(@)gdbmk.co.uk |
|
| Back to top |
|
|
|
|
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
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
