Near the Oregon border, just inside Washington state, there’s a small aircraft at a very odd angle. Given that we can clearly see its undercarriage, it would seem likely that this aircraft is right in the middle of a loop the loop!

The distortion of the plane is probably due to it being near the edge of an individual photo (where the images are warped to merge them together smoothly), but no amount of distortion could reveal its underside…

Thanks to Eduardo Sao Clemente and Eric.