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1. 09:13 PM - Pitot Static Testing with Dynon (Leland)
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| Subject: | Pitot Static Testing with Dynon |
--> RV9-List message posted by: Leland <federigo@pacbell.net>
A few months ago Steve Sampson asked how he could verify the integrity
of his pitot system with the Dynon AOA probe installed. Steve probably
figured out how to do this already, but here my procedure. Using
cellophane tape, tape over the two drain holes in the bottom of the
probe, tape over the AOA orifice, and run tape around the junction
between the probe body and the forward cap of the probe. (The rest of my
probe is potted with RTV and did not leak.) Then with somebody looking
at the ASI, blow into the pitot tip and then plug up the orifice with
your tongue. Don't blow too hard as you may come off scale. If there are
no leaks, the ASI will holds its value.
Similar procedure for the static system. Tape over one of the static
ports. Put you mouth over the other port and suck, then stopper the hole
with your tongue. There may be an initial decrease as the VSI leaks its
air internally, then the altimeter should hold steady.
Leland
Almost ready for the FAA inspection
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