pitot and static location

Discussion for builders, pilots, owners, and those interested in building or owning a Waiex.

Re: pitot and static location

Postby Bryan Cotton » Tue May 31, 2016 3:36 am

Kip,
Is it just a light press fit into the phenolic? Another advantage of my opportunity (having forgotten to plumb the wing and provide a pitot-static mount) is that stuff will not be in the way for installing wings.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: pitot and static location

Postby N111YX » Tue May 31, 2016 9:14 am

Yes, Brian. The 5/16" tube slides (twists, really) into the phenolic as a tight "press fit". After drilling the phenolic for the tube, I found that I had to sand down the pitot tube in a lathe a couple of thousands for the right friction for a tight fit. I thought that if it ever became loose from too many in-and-outs, I could always count on getting a new tube and still have some room to adjust for a tight fit. My pitot still slides in with the same friction after six years.

I'll make a video later today or tomorrow if I remember...
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
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Re: pitot and static location

Postby Bryan Cotton » Thu Sep 15, 2016 10:18 pm

Here Adam is copying Kip's idea. The tube I have on hand is 1/4" OD, same size as my ACS wing mounted pitot.
Image
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 4957
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: pitot and static location

Postby N111YX » Thu Sep 15, 2016 11:41 pm

Sorry if I drifted from this topic. Let me know if you need more info...
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
N111YX
 
Posts: 705
Joined: Fri Jun 03, 2011 9:43 am
Location: Atlanta, GA USA

Re: pitot and static location

Postby Bryan Cotton » Fri Sep 16, 2016 7:28 am

No worries Kip! Any thoughts on my 1/4" OD vs your 5/16" OD tube? I am thinking it is unimportant. Also did you choose the RH side for any technical reason? Finally I assume the plastic tube is from Home Depot's aviation aisle. Plastic all the way forward?
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 4957
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: pitot and static location

Postby N111YX » Fri Sep 16, 2016 4:01 pm

Bryan, I have read that pitot tube diameter is not too important. Come to think of it, my tube may in fact be a 1/4. I don't remember.

All of my P/S lines and fittings are nylo-seal brand, I believe. It's all TSO'd stuff and has not given me any problems in over six years now.

http://www.aircraftspruce.com/search/se ... GS&x=0&y=0

Bryan Cotton wrote:No worries Kip! Any thoughts on my 1/4" OD vs your 5/16" OD tube? I am thinking it is unimportant. Also did you choose the RH side for any technical reason? Finally I assume the plastic tube is from Home Depot's aviation aisle. Plastic all the way forward?
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
N111YX
 
Posts: 705
Joined: Fri Jun 03, 2011 9:43 am
Location: Atlanta, GA USA

Re: pitot and static location

Postby Bryan Cotton » Sat Nov 05, 2016 9:43 am

I have to confess I am tempted to use poly tubing. Has anybody else used the stuff for this application? It seems to last forever supplying water to the fridge.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 4957
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: pitot and static location

Postby Bryan Cotton » Tue Nov 22, 2016 11:42 am

Kip,
What length did you settle on for your tube? Any science or experimentation to it?
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 4957
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: pitot and static location

Postby N111YX » Tue Nov 22, 2016 8:06 pm

I went with what looked "about right", Bryan.

That would be about 6 or 7 inches exposed and about 3 or 4 inches in the base.

If I remember, I'll make a little youtube video about it next time I'm at the hangar. Hopefully this weekend.





Bryan Cotton wrote:Kip,
What length did you settle on for your tube? Any science or experimentation to it?
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
N111YX
 
Posts: 705
Joined: Fri Jun 03, 2011 9:43 am
Location: Atlanta, GA USA

Re: pitot and static location

Postby N111YX » Thu Nov 24, 2016 11:14 pm

A short description of the pitot system...

https://www.youtube.com/watch?v=kKxCEWk ... e=youtu.be
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
N111YX
 
Posts: 705
Joined: Fri Jun 03, 2011 9:43 am
Location: Atlanta, GA USA

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