That looks like a nice mount, and may go on my "wish list" of RAM mounts, of which I already have many.
As a caveat, even with a short, 1" arm, the RAM system will usually have enough play to invoke the "jello" effect in a plane.
It is best to either snug down the GoPro to something solid, or add another arm to "triangulate" the mount and reduce play.
Here's an example of a suction cup mount and SuperLok tape used to provide triangulation, in this case with the GoPro mount:
Here, I used a suction cup but used tywraps to snug the camera down against the strut (with appropriate cushioning):
Results here:
https://www.youtube.com/watch?v=dhauE4oUeE0
Similar theme on my KTM - suction cup with bungees holding the GoPro snug against the tank (and always a tether):
Results here:
https://www.youtube.com/watch?v=3vDiPrHN87o
You can see with the vibration of planes and bikes, its hard to eliminate ALL vestiges of jello.
BTW, my Sky Arrow is Experimental, so I have pretty much carte blanche to mount things to it. Just be careful to consider airflow, consequences of the camera coming loose, unbalancing or jamming of control surfaces, that sort of thing. And there may or may not be legalities involved in Standard Category aircraft, but that's another thread.