Replies to This Discussion

Permalink Reply by Veikko Vierola on February 3, 2013 at 6:27am

What is the easiest way to test if there is a leak between dynamic and static lines?

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Permalink Reply by Tom in ON on February 3, 2013 at 7:05am

Put the plastic tube on the dynamic tube's end, hold the other end of the dynamic tube closed with your finger, and blow in the plastic tube's other end. You should not hear or feel any air escaping from the static tube's small holes. The air pressure you are blowing should hold.

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Permalink Reply by Tom in ON on February 3, 2013 at 7:09am

By the way, I sent my concerns about the leaking pitot tubes to 3DR without asking for a refund or a replacement. Without noting directly the concerns about the leak, they promptly sent me a replacement that was leaking also.

I give up. Evidently, they are not reading the comments sent to them, nor are they reading this forum's tech support area.

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Permalink Reply by Chris Card on February 3, 2013 at 7:17pm

I too received replacements without having indicated how many I've purchased or asking for replacements.

However I've been too busy building to check them. I assumed, just like every other time, that they were O.K. 

Now that you've got leaky replacements, I will check to see if they're ok or not.

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Permalink Reply by Chris Card on February 4, 2013 at 1:23pm

So I've checked the replacement pitot tubes that I received...  and... they all LEAK!   

Now I have even more tubes to fix.  3DR should just make it a kit because we have to take them apart & re glue them anyways.

This coupled with the fact that the airspeed sensor is quite noisy makes me wonder if I'll even bother with the airspeed sensor.

I don't know ! ??

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Permalink Reply by Willem on April 14, 2013 at 7:19am

Just got in to this, mine came last week from 3dr, and guess what, yep just the same.

Whats irritate me is that 3dr knows from this faulty pitot tubes, and still go on selling them to every one.

I do not call that a good service at all!

Thanks for the heads up guys.

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DeveloperPermalink Reply by Mark Colwell on April 14, 2013 at 7:30am

They have known about this issue since Feb 2011, but no action, QA is a mystery at 3DR. Great blog by Users, DIY QA too. 

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