Looking for a special T fitting.

[JonJay]

I have updated my standard pitot to a Dynon and will be plumbing the pitot line out of the Dynon back to the original pitot hard line. That line terminated on a bulkhead fitting that served as the pitot mount. I think that’s standard for other models.
This bulkhead fitting served as a good anchor point for the hard pitot line, it needs support there.
I have a bulkhead T fitting and plan on tying the Dynon pitot line to the fitting on run and capping the bottom where the stock pitot would normally mount.

I don’t like that it will unnecessarily stick down a ways below the wing. The cap could also be a potential source of a leak.

I could cut off the fitting just below the nut and close it off with epoxy, but, if someone knows of a bulkhead T fitting that works like a 90deg. but passes though and can be secured to the existing hole let me know.

Hope all that verbage makes sense.

 

[cvairwerks]

I have updated my standard pitot to a Dynon and will be plumbing the pitot line out of the Dynon back to the original pitot hard line. That line terminated on a bulkhead fitting that served as the pitot mount. I think that’s standard for other models.
This bulkhead fitting served as a good anchor point for the hard pitot line, it needs support there.
I have a bulkhead T fitting and plan on tying the Dynon pitot line to the fitting on run and capping the bottom where the stock pitot would normally mount.

I don’t like that it will unnecessarily stick down a ways below the wing. The cap could also be a potential source of a leak.

I could cut off the fitting just below the nut and close it off with epoxy, but, if someone knows of a bulkhead T fitting that works like a 90deg. but passes though and can be secured to the existing hole let me know.

Hope all that verbage makes sense.

Jon: Would the AN833 bulkhead elbow work?

 

[JonJay]

Jon: Would the AN833 bulkhead elbow work?

No. That puts the elbow external to the wing.
I may just have to noodle on a different way to support a regular elbow. It’s right against the spar and I don’t want to drill through the spar web at that location.
I think I’m looking for a unicorn and will just have to modify a T or live with it sticking down.

 

[cvairwerks]

A sketch or photo would probably help visualize it then.

 

[Norman CYYJ]

I have updated my standard pitot to a Dynon and will be plumbing the pitot line out of the Dynon back to the original pitot hard line. That line terminated on a bulkhead fitting that served as the pitot mount. I think that’s standard for other models.
This bulkhead fitting served as a good anchor point for the hard pitot line, it needs support there.
I have a bulkhead T fitting and plan on tying the Dynon pitot line to the fitting on run and capping the bottom where the stock pitot would normally mount.

I don’t like that it will unnecessarily stick down a ways below the wing. The cap could also be a potential source of a leak.

I could cut off the fitting just below the nut and close it off with epoxy, but, if someone knows of a bulkhead T fitting that works like a 90deg. but passes though and can be secured to the existing hole let me know.

Hope all that verbage makes sense.

Why not just a straight bulk head fitting.

 

[JonJay]

Here’s my challenge, shown with an elbow and quick connect for the pitot line. The old pitot line was supported by a bulkhead fitting. It would be nice if I could find a clean way to support the line now. That old hole is just sitting there begging me to use it!

 

[cvairwerks]

Click-Bond CB4519 cable swivel mount. Bond it to the face of the spar and use an appropriate cable tie to capture the vertical hardline.

You could also bond a piece of angle to the spar face and use an Adel clamp. No holes added and everything stays inside.

 

[TS Flightlines]

Click-Bond CB4519 cable swivel mount. Bond it to the face of the spar and use an appropriate cable tie to capture the vertical hardline.

You could also bond a piece of angle to the spar face and use an Adel clamp. No holes added and everything stays inside.

How about a AN804-4D---although it mught not work in this case

 

[JonJay]

How about a AN804-4D---although it mught not work in this case

Ya, that’s what I had planned, with the protruding side capped. (Where the stock pitot attached)
Instead of a cap, one thought is to fill the hole with epoxy and then cut it off just below the nut. This turns it into a 90 with a mounting stub. I’m just trying to clean it up a little instead of it sticking down so far. Probably overthinking this.

Actually, the best idea is to have you guys fabricate one. The demand would be huge .

 

[mburch]

I'd just:

1. Plug the hole (snap-in plug or AC 43.13 approved method)
2. Pop-rivet a piece of angle to the rib
3. Adel-clamp your plumbing to the angle

Or as an alternative to #3, do something like this:

 

[JonJay]

I'd just:

1. Plug the hole (snap-in plug or AC 43.13 approved method)
2. Pop-rivet a piece of angle to the rib
3. Adel-clamp your plumbing to the angle

Or as an alternative to #3, do something like this:

View attachment 106690

Not a rib, it’s the spar web. I’m sure it would be fine but I’m trying to avoid drilling into the spar.
I could do as you show and bond it to the web, suggested earlier, but I want to be consistent with my original build - everything secured mechanically.

 

[mburch]

Not a rib, it’s the spar web. I’m sure it would be fine but I’m trying to avoid drilling into the spar.
I could do as you show and bond it to the web, suggested earlier, but I want to be consistent with my original build - everything secured mechanically.

What I meant was, use one of the ribs nearby, the wing is chock full of 'em.

 

[blaplante]

How about a bolt that is fully threaded (h/w store), up through the hole, nut on inside. Then adel clamps to attach your elbow to the bolt. Maybe even a carriage bolt, or maybe a suitable round head screw could be found.

Otherwise: 3D design something and get it made with Nylon.

 

[JonJay]

The

What I meant was, use one of the ribs nearby, the wing is chock full of 'em.

There are no ribs anywhere close. It’s a hard line and needs to stay where it is.
Appreciate the ideas though. That’s a nice looking bracket.

 

[fl-mike]

Here’s my challenge, shown with an elbow and quick connect for the pitot line. The old pitot line was supported by a bulkhead fitting. It would be nice if I could find a clean way to support the line now. That old hole is just sitting there begging me to use it!

Large countersunk Tinnerman washer in the existing pitot tube hole (on the outside of the skin), C/S screw in the washer, Adel clamp/nut/washer on the inside around the angle fitting.

I used a similar method to plug a provisioned, but unused antenna hole in the belly skin. Barely noticeable.

 

[Aden Rich]

Jon,
What about a banjo fitting Tee, where the bolt goes through the existing hole in the spar, so only the slim bolt head is in the wind, then the inside has the banjo fitting tee (with AN-4 ends on each side). One side goes to existing and the other goes out to new pitot?

 

[JonJay]

Jon,
What about a banjo fitting Tee, where the bolt goes through the existing hole in the spar, so only the slim bolt head is in the wind, then the inside has the banjo fitting tee (with AN-4 ends on each side). One side goes to existing and the other goes out to new pitot?
View attachment 106710

Thx Aden. I don’t think I have room on the flange to fit a banjo there.
I must say I have lots of solutions in this thread looking for problems that may come up some day.
Appreciate all of them.