Dynon Avionics Heated AOA/Pitot Probe - Manual (Page 24)

Mounting and Plumbing
4-4 AOA/Pitot Probe and Heated AOA/Pitot Probe Installation Guide Rev. C
Plumbing
Because the pitot and AOA plumbing tubes have not been annealed, they work-
harden rapidly when manipulated. Make gentle bends, and only bend any given
section once.
It is acceptable to split the pitot input to both the Dynon Avionics EFIS unit /
SkyView ADAHRS 200/201 and a standard airspeed indicator.
The Dynon Avionics AOA/Pitot Probe / Heated AOA/Pitot Probe does not provide a Static Port;
the Static Port and its associated pneumatic plumbing must be procured and installed
separately. Dynon Avionics does not supply a Static Port.
On the Dynon Avionics AOA/Pitot Probe and Heated AOA/Pitot Probe, at the base of the probe,
the aluminum tube closest to the snout is the Pitot line. At the base of the probe, the aluminum
tube to the rear of the Probe is the AOA line.
Before installing the AOA/Pitot Probe, verify that there are no restrictions
(contaminants, dirt, debris, etc.) in the probe:
1. Blow into the Pitot port (the tip of the probe) and verify good airflow comes out
of the Pitot line (closest to the tip).
2. Blow into the AOA port (underneath the tip) and verify good airflow comes out of
the AOA line (closest to the rear of the probe).
Route the Pitot and AOA pneumatic lines from the EFIS unit or SkyView SV-ADAHRS-200/201 to
the Dynon Avionics AOA/Pitot Probe / Heated AOA/Pitot Probe (or vice versa).
It is easy to get the AOA pneumatic line and the Pitot pneumatic line reversed
during final installation. Before installing the pneumatic lines, make a positive
indication on both ends of one or both lines, such as putting a tag on each end of
each pneumatic line indicating which line is which - AOA and Pitot.
Install any needed adaptors to connect the probe’s 3/16” aluminum plumbing lines to the
pneumatic lines; example AN 919-2D for adapting the 3/16” aluminum lines to 1/4” lines. We
strongly recommend using aircraft-grade fittings such as standard AN fittings. Take care to
ensure that the plumbing lines will not chafe and will not interfere with any aircraft control
systems.
MOISTURE DRAINAGE
The Dynon Avionics AOA/Pitot Probe and Heated AOA/Pitot Probe incorporate pin-sized
moisture drainage holes on the underside of the probe. The moisture drainage holes do not
affect the performance of the probe.