Static/Pitot tube needed ASAP

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WWhunter
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Static/Pitot tube needed ASAP

Post by WWhunter »

I was up flying and all of a sudden I noticed my AS dropped drastically. When I landed I noticed my pitot tube was cracked badly and it is corroded internally pretty bad.
Anyone have a spare or know where I can get one for a reasonable price.
WW
DC Krog
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Re: Static/Pitot tube needed ASAP

Post by DC Krog »

Pretty simple to repair/replace. 3/16" aluminum tube with a 90 degree bend.

Use old mast as a template.

DC Krog
WWhunter
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Re: Static/Pitot tube needed ASAP

Post by WWhunter »

I figured it would be easy to make on.....my only problem is there is a piec missing from the static line so I have no idea what size those tine holes are and also don't have the little metal sleeve that is on it.
Anyone have a drawing of these lines?
WW
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skyking3286
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Re: Static/Pitot tube needed ASAP

Post by skyking3286 »

The sleeve is an RC model wheel collar for that diameter of tubing. The holes are on the drawing...I wonder if Todd has it on his website?
Mark Peterson
Harvey Field, WA
A copy of my old Chief website is preserved here:

http://www.reocities.com/mrpeters.geo/index.html
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joea
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Re: Static/Pitot tube needed ASAP

Post by joea »

If you can find the number of the drawing, the NAA may have it.

Joe A
MikeB
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Re: Static/Pitot tube needed ASAP

Post by MikeB »

Keith,
I have an extra pitot tube (somewhere) that you can use for a pattern if you can't come up with anything else.

MikeB
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skyking3286
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Re: Static/Pitot tube needed ASAP

Post by skyking3286 »

Looks like 3-535 is the drawing number, Pitot Head... in 1947 you could get one for $3.25 or so from the factory! Todd needs a copy.
Mark Peterson
Harvey Field, WA
A copy of my old Chief website is preserved here:

http://www.reocities.com/mrpeters.geo/index.html
WWhunter
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Re: Static/Pitot tube needed ASAP

Post by WWhunter »

My pito is still basically intact.....just broken due to corrosion. It is presently taped together. The line I need specs for is the static line. When I purchased this Champ the line was busted off nearly flush with the bottom of the pitot line. What I need is the measurement of the distance it is below the pitot line.....how long it protrudes from the radius to the front of the tube, and where is that little disk supposed to be located. Also if I remember correctly for looking at other lines there are two tiny holes....one on each side of that little disk. What diameter are these holes and distance form the front of the tube. Since my Champ has never had this part of the tube I don't have any idea where they are located.
Thank you,
WW
MikeB
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Re: Static/Pitot tube needed ASAP

Post by MikeB »

WW (or is it Keith?)
Anyway, I don't know how much help this will be to you but the static tube I have has four holes drilled through from top to bottom and side to side. The holes appear to be (with my wire gauges) .030 in size. the first hole (top to bottom measures 1 3/32" back from the closed end of the static tube, the second set of holes (side to side) measure 1 1/8" back from the end of the static tube. The collar is about 7/16" back from the end. I've never done it but I understand you calibrate your airspeed indicator by adjusting the position of the collor on the tube.

Hope this helps.....

Mikeb
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Mikek
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Re: Static/Pitot tube needed ASAP

Post by Mikek »

WWhunter wrote:-----or know where I can get one for a reasonable price.
WW
Reasonable??

http://store.wagaero.com/product_info.p ... s_id=12993

Wag-aero $169.00 plus shipping
Mike Knemeyer

1410 Meadow Lane
Yellow Springs,Ohio 45387

3oh0
N83348 7AC-2015
N82146 7AC-772
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skyking3286
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Re: Static/Pitot tube needed ASAP

Post by skyking3286 »

AND at that price, you still need to run to the hobby store and pick up the wheel collar!
Mark Peterson
Harvey Field, WA
A copy of my old Chief website is preserved here:

http://www.reocities.com/mrpeters.geo/index.html
WWhunter
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Re: Static/Pitot tube needed ASAP

Post by WWhunter »

Mike,
Yep, it's Keith. The WWhunter is just the screen name I started with many years ago and comes from all the hunting I have done. :)

Anyway....Thank you very much for the measurements! I think I can easily manufacture one, just need to find some tubing. Funny thing is, my airspeed has always seemed to be fairly accurate according to my GPS and the static line has always been busted. Go figure!

Keith aka WWhunter
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