Here is how I installed the ports on my XS wing (the a/c is not yet flying
so I can't vouch for the locations):
The port on the top surface of the wing is located 6 inch / 152 mm forward
of the leading edge of the wing spar, and 12-5/8 inch / 321 mm inboard of
the wing tip, or alternatively the port is 126-5/8 inch / 3216 mm, measured
outboard from the inboard surface of the root rib.
In my case access to the ports is straightforward because I have cutouts in
each wingtip for position lights and strobes so I only need remove the
covers and lights to be able to reach (barely) the sensors. However, it is
not likely that these inanimate objects will ever need to be reached from
within. The pneumatic tubes are routed through the ribs in the same manner
as the factory's pitot tubing, so neither can be replaced easily. I am
trusting PVC tubing that is not exposed to sunlight to last forever.
Best regards,
Rob Housman
A070
-----Original Message-----
Behalf Of Shaun Simpkins
Subject: PSS AOA sensor position standardization
All:
I'm getting close to installing a Proprietary Software Systems AOA sensor in
my wing.
After talking with those folks, there's apparently a lot of Europa builders
doing the same
thing, but going about it in very different ways. There are a two main
issues here:
1. Where is the optimal position for the sensor
2. How does one provide access to it?
PSS's comment is that they have been able to provide precalibrated AOA
systems and
optimal installation directions for RVs with the help and cooperation of the
builder community
and the factory. There appears to be enough users in the Europa community
that a
coordinated development of at least optimal installation instructions is
feasible. However, this
would really need the interest and involvement of the factory.
The second issue is seeing several approaches. The basic problem is that
the sensor bridges
the upper and lower skins forward of the spar, and therefore requires an
additional access
plate for maintenance. What is the structurally safest, or aerodynamically
best, way of doing
this?
Perhaps those that are in the middle of this could join in another
discussion thread....
Shaun Simpkins
stuck in OR for SunN'Fun
A207
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