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Saturday, 28 January 2023

Pitot / Static

I have been just dreading plumbing he pitot, static and AOA.

The static ports have been in temporarily for quite some time, as has the line between the two ports (on a Sportsman, the static ports are just forward of the doors mid fuselage - just above the forward end fresh air inlet NACA's).

I've been dreading this because there is nowhere to mount the fittings (couplers, T's, etc).  After looking at some other builds, maybe I don't have to.  Bottom line is I am just going to go for it, and adjust later if need be.

Part of my problem is I have somewhat boxes myself into a corner.  Having so much 'stuff' behind the panel is difficult - well, relatively difficult.  The nice thing is with the displays removed, you have really good access behind the panel - but you have to remove the displays (4 screws, 2 DB connectors, a USB and an Ethernet cable).  The other part of my problem is in Canada we have to do a bi-yearly pitot static 'check' to the tune of ~$400. It's approximate, because if you have a leak you either have to fix it yourself or pay them to do so.  I will have to have one done before first flight.

One of the static ports


Bulkhead fittings on the port side wing connector (electrical, rf and pitot / aoa).


First couple connections.  Backup EFIS, alternate static source switch (in case of a static blockage), and the primary ADAHRS (not yet connected).


Here is the rest of it... actually version 2 after some changes.


White = Static

Green = Pitot

Blue = AOA


Above is the starboard static port.  One leg of the T goes to the port static port (routed under the shelf), and the other leg goes up to the top of the shelf to the ADHRS, AV30, and alternate static source switch.

I am still not overly happy with the install, but am at the point where there is so much going on my options are limited.

Moving on...




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