GoPole

Found a convenient thing: A "pole." (No, nothing to do with Stephen Colbert.) Seems like general aviation planes are sprouting GoPro quick release mounts all over the place, and a very common location is on the ceiling of the plane:

Which is cool and all, but the view the camera gets tends to be kind of ... Subpar. Enter the GoPole Arm, a $20 piece of kit with a set of three GoPro prongs at one end, and two at the other (could probably have used something similar, like this, but Frys was on the way to the airport...). This lets it install between, e.g., a quick-release insert and the frame mount for the camera. This allows the camera to be brought down lower, to, e.g., the pilot's eye level, and greatly enhances the image that can be captured (more "outside" the aircraft). Still fiddling with getting the right position, but at least now that's a possibility!