I spent my Saturday evening working on the awesome angle of attack sensor that I bought at Oshkosh from the guys at Alpha Systems.
I decided that I'm going to put this in the right wing and keep all the plumbing completely separate from my left wing pitot system. That way if something catastrophic happens to one then I should still have the other. I did read about an incident whereby an unlucky aviator hit a large bird which took out both his pitot and AoA probe, both of which were mounted in close proximity to each other in the left wing. Call me cautious.
Anyway, Vans in their wisdom give us three large inspection panels in the underside of each wing, so I figured I'd use one of these as the mounting point. The AoA sensor needs to be mounted more than 6" behind the leading edge, more than 14" ahead of the trailing edge, and at least 24" outside the arc of the propellor, to ensure it is always in undisturbed airflow. The middle inspection hole ticks all the boxes.
Using the cover as my template, I cut the sensor mounting plate to the correct size, match drilled and dimpled all the mounting holes, and fit it up to the inboard location to test it for size. Looks awesome. I then routed the plastic air lines.
The Alpha Systems AoA parts. I shaped the mounting plate to fit one of the under-wing inspection holes
Test fitted into the inboard inspection hole
I routed the two poly tubes to the area where the sensor will eventually be installed
