Techniques for shooting large format from a plane?

I haven’t been able to imagine a good system for a small prop plane if the camera has a bellows and you need a slower shutter speed. (Imagine a 4×5). I think I could rig up a harness system and keep the door open so that I’m not shooting through the plane glass, but I haven’t figured out how to keep the camera stable with the wind and plane vibrations. Bradford Washburn managed it, and I see he had a metal “bellows” and a harness for the camera, but I don’t know how that harness managed to work with slower shutter speeds. I have not seen pictures of him using a tripod.

How do/would folks do this these days?