This is a continuation of the FX-79 Buffalo QuadPlane conversion from the original thread here in the Plane 3.8 forum. The newer VTOL forum is more appropriate for this topic and it allows us to change APM releases over time.
Our Fall weather this year in Upstate NY has been cold, wet, and windy, so it’s time to start catching up on building projects. I purchased 4 air speed sensors for different projects and decided to go with the older analog APM AS Sensors because they are less than half the price of their I2C counterparts. By creating your own 3-pin to R/C servo cable, you can effectively save $25 per AS sensor. I have been using the analog sensors for years without issue.
I found the AS sensor easy to mount by using one of the three air holes up front. The middle hole is meant for a camera but I have not used it yet. The FX-79 is big so you can mount the AS sensor in many places. I glued the metal pitot tube in place using Foam Tac.