---------------------------------------------------------- RV9-List Digest Archive --- Total Messages Posted Tue 03/08/05: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:13 PM - Pitot Static Testing with Dynon (Leland) ________________________________ Message 1 _____________________________________ Time: 09:13:16 PM PST US From: Leland Subject: RV9-List: Pitot Static Testing with Dynon --> RV9-List message posted by: Leland 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