[Zuriel]

The co-pilot is visible, his right arm pushing against the roof, as the bomber was arching down immediately. Negative Gs. Terrible.

[pfflier]

I had a friend point that out too. At first I was skeptical thinking I was seeing the cockpit framing coming loose on the pilot's side.

After we enlarged the image it became clearer that the image appears to show an arm in a tan flight suit gripping something in the upper cockpit frame.

In the picture in this thread, zoom in on the cockpit and on the left side just behind the remainder of the windshield and see what you think.

[ought-six]

“The co-pilot is visible, his right arm pushing against the roof, as the bomber was arching down immediately. Negative Gs. Terrible.”

I zoomed on that photo, and you could very well be right.