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poneill(at)irealms.com
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 Posted: Sat Dec 22, 2007 5:02 am Post subject: Gretz Pitot Instructions |
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I’m about ready to do the Gretz Pitot install and can’t find my copy of the instructions. Does anyone happen to have an electronic copy? I could not find one on he Gretz Aero site. I don’t need the mounting bracket instructions, those ones I found. I am looking for the one that has the wiring diagrams for the pitot itself.
Also, is there any consensus as to which bay is optimal from the standpoint of accuracy, ease of maintenance and tie-down clearance?
How have people been going about doing the cutout for the bottom skin? The bracket instructions don’t seem to provide any guidance for that step.
Best Regards,
Patrick #40715/ N690CT
[quote][b]
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recapen(at)earthlink.net
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| Posted: Sat Dec 22, 2007 5:15 am Post subject: Gretz Pitot Instructions |
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On my 6A, I put it on the outboard bay of the access panel. Then I moved my tie-down mount one bay outboard so they wouldn't cross paths.
The instructions didn't do anything for me on the cutout either. I used the bracket plate as a template after I match drilled the holes - then opened it up with a grinder bit.
The wiring instructions were part of the pitot tube itself - I've got mine at the hangar (will try to remember) - but IIRC it didn't tell you which was + or -. I just made a decision and wired it up - neither pin was grounded. Mine works fine.
[quote] ---
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Tim Olson
Joined: 25 Jan 2007
Posts: 2879
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| Posted: Sat Dec 22, 2007 5:42 am Post subject: Gretz Pitot Instructions |
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Patrick, try these:
http://www.myrv10.com/files/misc/Gretz_Aero_instructions2.pdf
http://www.myrv10.com/files/misc/Gretz_Pitot_Tube_Mounting_Kit.pdf
Tim Olson - RV-10 N104CD - Flying
do not archive
Patrick ONeill wrote:
| Quote: | I’m about ready to do the Gretz Pitot install and can’t find my copy of
the instructions. Does anyone happen to have an electronic copy? I
could not find one on he Gretz Aero site. I don’t need the mounting
bracket instructions, those ones I found. I am looking for the one that
has the wiring diagrams for the pitot itself.
Also, is there any consensus as to which bay is optimal from the
standpoint of accuracy, ease of maintenance and tie-down clearance?
How have people been going about doing the cutout for the bottom skin?
The bracket instructions don’t seem to provide any guidance for that step.
Best Regards,
Patrick #40715/ N690CT
*
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rv10(at)sinkrate.com
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| Posted: Sat Dec 22, 2007 6:57 am Post subject: Gretz Pitot Instructions |
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Patrick,
I’ll borrow a quote from John Cox for you on this “Make sure you take off your builder hat and put on your repairman/serviceman hat…”.
Although not technically that difficult to install think about maintaining it after installation. I did not think about install or location when I cut the holes for my bracket which I ended up putting it in the stock Van’s pitot location. It worked out ok but I had several technical hurdles to overcome.
The copper tube coming out of the pitot tube itself came straight up into the aileron torque tube requiring a healthy bend to maintain clearance while the tube moved fore and aft. The mounting locations for the circuit board in this location are sub optimal for ease of wire installation and maintenance due to the aileron pushrod and bellcrank parts. Think about threading the wires up through the pitot tube hole and guiding them into their install location on the circuit board and then tightening the miniature screws. You also have to secure the aluminum pitot line to the copper line through an inspection hole after installing the bottom wing skins.
Pictures of my installation can be found here: [url=http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot]http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot[/url]
I ended up making short length wires and connectors that I could attach to the circuit board prior to closing up the wing. I used a locking 2 wire molex plug for the power wires and dean’s plug for the thermistor wires. My thoughts were to make the actual installation of the tube into the finished wing easier. One thing to think about too is what happens to moisture that may accumulate on the wires? The circuit board should be on the top side of the wing so all wire runs coming out of the unprotected holes are not subject to water droplets running down the wires and into their attach points. I am considering encasing the wires in silicone but have not yet done that.
If anyone has more questions or thinks I f’d something up please let me know!
-Ben Westfall
#40579
N109LB (reserved)
PDX
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Patrick ONeill
Sent: Saturday, December 22, 2007 4:56 AM
To: rv10-list(at)matronics.com
Subject: Gretz Pitot Instructions
I’m about ready to do the Gretz Pitot install and can’t find my copy of the instructions. Does anyone happen to have an electronic copy? I could not find one on he Gretz Aero site. I don’t need the mounting bracket instructions, those ones I found. I am looking for the one that has the wiring diagrams for the pitot itself.
Also, is there any consensus as to which bay is optimal from the standpoint of accuracy, ease of maintenance and tie-down clearance?
How have people been going about doing the cutout for the bottom skin? The bracket instructions don’t seem to provide any guidance for that step.
Best Regards,
Patrick #40715/ N690CT | Quote: | | http://www.matronics.com/contribution |
012345678901234
[quote][b]
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http://www.matronics.com/Navigator?RV10-List |
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DAVELEIKAM(at)wi.rr.com
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| Posted: Sat Dec 22, 2007 6:52 pm Post subject: Gretz pitot instructions |
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I used the mount for a template and drilled and traced for the hole after clecoing it over the skin. Then I used my step drill to enlarge the mount hole. Then trimmed the hole to the line with my dremel. I mounted the thing in the bay just outboard from the aileron inspection cover. The circuit board is mounted to the inspection cover itself. Makes the wire connections easy to get at.
Dave Leikam
40496
N89DA reserved
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poneill(at)irealms.com
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| Posted: Fri Dec 28, 2007 5:05 am Post subject: Gretz Pitot Instructions |
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I’m finally back to building now that the bulk of the holiday season has passed.
Thank you very much Ralph, Dave, Tim and Ben for the info on the Gretz! It was all very helpful! Hopefully this weekend I can put it into practice.
Dave and Ben you both have done beautiful work. Great pictures and links!
Did any of you have much trouble getting the pitot to fit the mount? The instructions say the pitot may need to be ground to fit. In my case, it looks like a substantial amount of grinding.
Best Regards,
Patrick #40715 / N690CT
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Ben Westfall
Sent: Saturday, December 22, 2007 6:56 AM
To: rv10-list(at)matronics.com
Subject: RE: Gretz Pitot Instructions
Patrick,
I’ll borrow a quote from John Cox for you on this “Make sure you take off your builder hat and put on your repairman/serviceman hat…”.
Although not technically that difficult to install think about maintaining it after installation. I did not think about install or location when I cut the holes for my bracket which I ended up putting it in the stock Van’s pitot location. It worked out ok but I had several technical hurdles to overcome.
The copper tube coming out of the pitot tube itself came straight up into the aileron torque tube requiring a healthy bend to maintain clearance while the tube moved fore and aft. The mounting locations for the circuit board in this location are sub optimal for ease of wire installation and maintenance due to the aileron pushrod and bellcrank parts. Think about threading the wires up through the pitot tube hole and guiding them into their install location on the circuit board and then tightening the miniature screws. You also have to secure the aluminum pitot line to the copper line through an inspection hole after installing the bottom wing skins.
Pictures of my installation can be found here: [url=http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot]http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot[/url]
I ended up making short length wires and connectors that I could attach to the circuit board prior to closing up the wing. I used a locking 2 wire molex plug for the power wires and dean’s plug for the thermistor wires. My thoughts were to make the actual installation of the tube into the finished wing easier. One thing to think about too is what happens to moisture that may accumulate on the wires? The circuit board should be on the top side of the wing so all wire runs coming out of the unprotected holes are not subject to water droplets running down the wires and into their attach points. I am considering encasing the wires in silicone but have not yet done that.
If anyone has more questions or thinks I f’d something up please let me know!
-Ben Westfall
#40579
N109LB (reserved)
PDX
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Patrick ONeill
Sent: Saturday, December 22, 2007 4:56 AM
To: rv10-list(at)matronics.com
Subject: Gretz Pitot Instructions
I’m about ready to do the Gretz Pitot install and can’t find my copy of the instructions. Does anyone happen to have an electronic copy? I could not find one on he Gretz Aero site. I don’t need the mounting bracket instructions, those ones I found. I am looking for the one that has the wiring diagrams for the pitot itself.
Also, is there any consensus as to which bay is optimal from the standpoint of accuracy, ease of maintenance and tie-down clearance?
How have people been going about doing the cutout for the bottom skin? The bracket instructions don’t seem to provide any guidance for that step.
Best Regards,
Patrick #40715/ N690CT | Quote: | | http://www.matronics.com/contribution |
| Quote: | | http://www.matronics.com/Navigator?RV10-List |
| Quote: | | http://forums.matronics.com |
01234567890123456
[quote][b]
| | - The Matronics RV10-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?RV10-List |
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rv10(at)sinkrate.com
Guest
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| Posted: Fri Dec 28, 2007 7:25 am Post subject: Gretz Pitot Instructions |
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|
Yes grind away… It is really soft material so “grind” lightly. I actually used the scotchbrite wheel on my benchtop grinder. Go slow and keep test fitting it to the mount as I imagine “adding back” material is a PIA. The attached photo shows what mine looks like after modifying. I recall most of the removal of material was the aft edge and then thinning it a little starting roughly in the center of the screw holes and going forward. I remember having to remove material a lot farther down from the screw holes than what you would think when looking at the mount holes. You can see the color difference in the photo.
Thanks for the cudos.
-Ben
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Patrick ONeill
Sent: Friday, December 28, 2007 5:05 AM
To: rv10-list(at)matronics.com
Subject: RE: Gretz Pitot Instructions
I’m finally back to building now that the bulk of the holiday season has passed.
Thank you very much Ralph, Dave, Tim and Ben for the info on the Gretz! It was all very helpful! Hopefully this weekend I can put it into practice.
Dave and Ben you both have done beautiful work. Great pictures and links!
Did any of you have much trouble getting the pitot to fit the mount? The instructions say the pitot may need to be ground to fit. In my case, it looks like a substantial amount of grinding.
Best Regards,
Patrick #40715 / N690CT
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Ben Westfall
Sent: Saturday, December 22, 2007 6:56 AM
To: rv10-list(at)matronics.com
Subject: RE: Gretz Pitot Instructions
Patrick,
I’ll borrow a quote from John Cox for you on this “Make sure you take off your builder hat and put on your repairman/serviceman hat…”.
Although not technically that difficult to install think about maintaining it after installation. I did not think about install or location when I cut the holes for my bracket which I ended up putting it in the stock Van’s pitot location. It worked out ok but I had several technical hurdles to overcome.
The copper tube coming out of the pitot tube itself came straight up into the aileron torque tube requiring a healthy bend to maintain clearance while the tube moved fore and aft. The mounting locations for the circuit board in this location are sub optimal for ease of wire installation and maintenance due to the aileron pushrod and bellcrank parts. Think about threading the wires up through the pitot tube hole and guiding them into their install location on the circuit board and then tightening the miniature screws. You also have to secure the aluminum pitot line to the copper line through an inspection hole after installing the bottom wing skins.
Pictures of my installation can be found here: [url=http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot]http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot[/url]
I ended up making short length wires and connectors that I could attach to the circuit board prior to closing up the wing. I used a locking 2 wire molex plug for the power wires and dean’s plug for the thermistor wires. My thoughts were to make the actual installation of the tube into the finished wing easier. One thing to think about too is what happens to moisture that may accumulate on the wires? The circuit board should be on the top side of the wing so all wire runs coming out of the unprotected holes are not subject to water droplets running down the wires and into their attach points. I am considering encasing the wires in silicone but have not yet done that.
If anyone has more questions or thinks I f’d something up please let me know!
-Ben Westfall
#40579
N109LB (reserved)
PDX
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Patrick ONeill
Sent: Saturday, December 22, 2007 4:56 AM
To: rv10-list(at)matronics.com
Subject: Gretz Pitot Instructions
I’m about ready to do the Gretz Pitot install and can’t find my copy of the instructions. Does anyone happen to have an electronic copy? I could not find one on he Gretz Aero site. I don’t need the mounting bracket instructions, those ones I found. I am looking for the one that has the wiring diagrams for the pitot itself.
Also, is there any consensus as to which bay is optimal from the standpoint of accuracy, ease of maintenance and tie-down clearance?
How have people been going about doing the cutout for the bottom skin? The bracket instructions don’t seem to provide any guidance for that step.
Best Regards,
Patrick #40715/ N690CT | Quote: | | http://www.matronics.com/contribution |
| Quote: | | http://www.matronics.com/Navigator?RV10-List |
| Quote: | | http://forums.matronics.com |
012345678901234567890123
| | - The Matronics RV10-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?RV10-List |
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Tim Olson
Joined: 25 Jan 2007
Posts: 2879
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| Posted: Fri Dec 28, 2007 7:47 am Post subject: Gretz Pitot Instructions |
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|
Yep, just like Ben, I ground mine slightly. In my case it didn't
seem to require a heck of a lot of work. I used a file and checked
it often until it fit and the holes lined up. All in all, the
Gretz pitot was very simple to mount. I can't say how well it keeps
ice off, as I haven't been in bad ice, but I can say that it seems
to operate as intended. Once it warms up, the light goes out,
and it cycles as necessary. It should be warm enough to keep ice
from sticking.
Tim Olson - RV-10 N104CD - Flying
do not archive
Ben Westfall wrote:
| Quote: | Yes grind away… It is really soft material so “grind” lightly. I
actually used the scotchbrite wheel on my benchtop grinder. Go slow and
keep test fitting it to the mount as I imagine “adding back” material is
a PIA. The attached photo shows what mine looks like after modifying.
I recall most of the removal of material was the aft edge and then
thinning it a little starting roughly in the center of the screw holes
and going forward. I remember having to remove material a lot farther
down from the screw holes than what you would think when looking at the
mount holes. You can see the color difference in the photo.
Thanks for the cudos.
-Ben
------------------------------------------------------------------------
*From:* owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Patrick ONeill
*Sent:* Friday, December 28, 2007 5:05 AM
*To:* rv10-list(at)matronics.com
*Subject:* RE: Gretz Pitot Instructions
I’m finally back to building now that the bulk of the holiday season has
passed.
Thank you very much Ralph, Dave, Tim and Ben for the info on the Gretz!
It was all very helpful! Hopefully this weekend I can put it into practice.
Dave and Ben you both have done beautiful work. Great pictures and links!
Did any of you have much trouble getting the pitot to fit the mount?
The instructions say the pitot may need to be ground to fit. In my
case, it looks like a substantial amount of grinding.
Best Regards,
Patrick #40715 / N690CT
------------------------------------------------------------------------
*From:* owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Ben Westfall
*Sent:* Saturday, December 22, 2007 6:56 AM
*To:* rv10-list(at)matronics.com
*Subject:* RE: Gretz Pitot Instructions
Patrick,
I’ll borrow a quote from John Cox for you on this “Make sure you take
off your builder hat and put on your repairman/serviceman hat…”.
Although not technically that difficult to install think about
maintaining it after installation. I did not think about install or
location when I cut the holes for my bracket which I ended up putting it
in the stock Van’s pitot location. It worked out ok but I had several
technical hurdles to overcome.
The copper tube coming out of the pitot tube itself came straight up
into the aileron torque tube requiring a healthy bend to maintain
clearance while the tube moved fore and aft. The mounting locations for
the circuit board in this location are sub optimal for ease of wire
installation and maintenance due to the aileron pushrod and bellcrank
parts. Think about threading the wires up through the pitot tube hole
and guiding them into their install location on the circuit board and
then tightening the miniature screws. You also have to secure the
aluminum pitot line to the copper line through an inspection hole after
installing the bottom wing skins.
Pictures of my installation can be found here:
http://www.sinkrate.com/rv10/pics.asp?f=wings|pitot
I ended up making short length wires and connectors that I could attach
to the circuit board prior to closing up the wing. I used a locking 2
wire molex plug for the power wires and dean’s plug for the thermistor
wires. My thoughts were to make the actual installation of the tube
into the finished wing easier. One thing to think about too is what
happens to moisture that may accumulate on the wires? The circuit board
should be on the top side of the wing so all wire runs coming out of the
unprotected holes are not subject to water droplets running down the
wires and into their attach points. I am considering encasing the wires
in silicone but have not yet done that.
If anyone has more questions or thinks I f’d something up please let me
know!
-Ben Westfall
#40579
N109LB (reserved)
PDX
------------------------------------------------------------------------
*From:* owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Patrick ONeill
*Sent:* Saturday, December 22, 2007 4:56 AM
*To:* rv10-list(at)matronics.com
*Subject:* Gretz Pitot Instructions
I’m about ready to do the Gretz Pitot install and can’t find my copy of
the instructions. Does anyone happen to have an electronic copy? I
could not find one on he Gretz Aero site. I don’t need the mounting
bracket instructions, those ones I found. I am looking for the one that
has the wiring diagrams for the pitot itself.
Also, is there any consensus as to which bay is optimal from the
standpoint of accuracy, ease of maintenance and tie-down clearance?
How have people been going about doing the cutout for the bottom skin?
The bracket instructions don’t seem to provide any guidance for that step.
Best Regards,
Patrick #40715/ N690CT
* *
* *
*http://www.matronics.com/contribution*
* *
*http://www.matronics.com/Navigator?RV10-List*
*http://forums.matronics.com*
* http://www.matronics.com/contribution*
* *
*http://www.matronics.com/Navigator?RV10-List*
*http://forums.matronics.com*
* http://www.matronics.com/contribution*
**
**
**
**
**
*http://www.matronics.com/Navigator?RV10-List*
**
*http://forums.matronics.com*
* *
------------------------------------------------------------------------
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DAVELEIKAM(at)wi.rr.com
Guest
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| Posted: Fri Dec 28, 2007 8:22 pm Post subject: Gretz Pitot Instructions |
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|
I had to grind a bit off the pitot where it slides into the mount. I used the scotchbrite wheel and took a small amount off at a time until it fit snug. Pretty straight forward.
Dave Leikam
40496
Starting to rivet bottom wing skins ;- o
N89DA Reserved
[quote] ---
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